diff --git a/TrimSP.html b/TrimSP.html
index 8ac8611..8a343af 100644
--- a/TrimSP.html
+++ b/TrimSP.html
@@ -310,14 +310,23 @@
 	    </tr>
 	    <tr>
 	      <td class="tooltip">
-		<input type="checkbox" id="flagICRU" checked>
+	        Stopping Power<br>Coefficients
 		<span class="tooltiptext">
-		  Force the TRIM.SP code to use stopping power
-		  parameters from the old ICRU tables. 
-		</span>
+	          Data source for the Varelas-Biersack parameterization of electronic
+	          stopping cross-sections for proton-like projectiles implanted in
+	          elemental targets:
+	          <ol>
+	            <li value="1">Table 1 in Anderson & Ziegler (1977).</li>
+	            <li value="2">Table 3.1 in ICRU Report 49 (1993).</li>
+	            <li value="3">Table II in McFadden et al. (2023) and McFadden et al. (unpublished).</li>
+	          </ol>
+	          Note: While option 3 contains the most up-to-date values, it currently
+	          does not contain entries for every target element. For elements with
+	          missing data, values from option 2 are taken instead.
+	        </span>
 	      </td>
 	      <td>
-		Use ICRU parameters
+		<input name="flagSPC" id="flagSPC" type="number" step="1" min="1" max="3" value="2">
 	      </td>
 	      <td class="tooltip">
 	        IRL
diff --git a/TrimSPlib.js b/TrimSPlib.js
index 9170096..9dfb54e 100644
--- a/TrimSPlib.js
+++ b/TrimSPlib.js
@@ -1,823 +1,2992 @@
+// This file contains function that are generic Javascript for TrimSP
+
 // This is an object that contains all GUI ids and values
 var All = new Object();
 
-// This is an object that contains all elements and their parameters
-// To replace all other functions 
-const elemPars = {
-    muon : {
-	Z :  1 ,
-	A :  0.1134289259 ,
-	rho : 0 ,
-	Elast : 0 ,
-	ICRU : [] , 
-	IAEA : [] 
-    },
-    "Li-8" : {
-	Z :  3 ,
-	A :  8.02248624 ,
-	rho : 0 ,
-	Elast : 0 ,
-	ICRU : [] , 
-	IAEA : [] 
-    },
-    "B-12" : {
-	Z :  5 ,
-	A :  12.0143526 ,
-	rho : 0 ,
-	Elast : 0 ,
-	ICRU : [] , 
-	IAEA : [] 
-    },
-    "Mg-31" : {
-	Z :  12 ,
-	A :  30.996648 ,
-	rho : 0 ,
-	Elast : 0 ,
-	ICRU : [] , 
-	IAEA : [] 
-    },
-    H : {
-	Z :  1 ,
-	A :  1.008 ,
-	rho : 0.08 ,
-	Elast : 0.1 ,
-	ICRU : [1.25400,1.44000,242.60001,12000.00000,0.11590], 
-	IAEA : [1.21941306,1.39705253,316.72610292,3622.08960714,0.03609996]
-    },
-    He : {
-	Z :  2 ,
-	A :  4.003 ,
-	rho : 0.12 ,
-	Elast : 0.1 ,
-	ICRU : [1.22900,1.39700,484.50000,5873.00000,0.05225] , 
-	IAEA : [] 
-    },
-    Li : {
-	Z :  3 ,
-	A :  6.939 ,
-	rho : 0.53 ,
-	Elast : 1.63 ,
-	ICRU : [1.41100,1.60000,725.59998,3013.00000,0.04578] , 
-	IAEA : [2.55867734,2.98398784,672.22623329,223.63937274,0.05756479]
-    },    
-    Be : {
-	Z :  4 ,
-	A :  9.012 ,
-	rho : 1.85 ,
-	Elast : 3.32 ,
-	ICRU : [2.24800,2.59000,966.00000,153.80000,0.03475] , 
-	IAEA : [2.13846776,2.43024550,1353.80005691,500.78353377,0.01143076] 
-    },    
-    B : {
-	Z :  5 ,
-	A :  10.811 ,
-	rho : 2.34 ,
-	Elast : 5.77 ,
-	ICRU : [2.47400,2.81500,1206.00000,1060.00000,0.02855] , 
-	IAEA : [2.92598306,3.33271910,1523.83401267,574.31712932,0.01671298]
-    },    
-    C : {
-	Z :  6 ,
-	A :  12.011 ,
-	rho : 2.26 ,
-	Elast : 7.37 ,
-	ICRU : [2.60100,2.60100,1701.00000,1279.00000,0.01638] , 
-	IAEA : [2.51057212,2.84874359,1325.63086028,2111.57332043,0.03815981] 
-    },    
-    N : {
-	Z :  7 ,
-	A :  14.007 ,
-	rho : 1.03 ,
-	Elast : 4.92 ,
-	ICRU : [2.95400,3.35000,1683.00000,1900.00000,0.02513] , 
-	IAEA : [3.03231463,3.44621744,1287.27189959,3445.25706665,0.06909550] 
-    },    
-    O : {
-	Z :  8 ,
-	A :  15.999 ,
-	rho : 2 ,
-	Elast : 2.6 ,
-	ICRU : [2.65200,3.00000,1920.00000,2000.00000,0.02230] , 
-	IAEA : [2.58218404,2.91913321,2066.69556610,1937.28839450,0.01708201] 
-    },    
-    F : {
-	Z :  9 ,
-	A :  18.998 ,
-	rho : 1.11 ,
-	Elast : 0.84 ,
-	ICRU : [2.08500,2.35200,2157.00000,2634.00000,0.01816] , 
-	IAEA : [] 
-    },    
-    Ne : {
-	Z :  10 ,
-	A :  20.183 ,
-	rho : 1.5 ,
-	Elast : 0.02 ,
-	ICRU : [1.95100,2.19900,2393.00000,2699.00000,0.01568] , 
-	IAEA : [] 
-    },    
-    Na : {
-	Z :  11 ,
-	A :  22.99 ,
-	rho : 0.97 ,
-	Elast : 1.11 ,
-	ICRU : [2.54200,2.86900,2628.00000,1854.00000,0.01472] , 
-	IAEA : [] 
-    },    
-    Mg : {
-	Z :  12 ,
-	A :  24.312 ,
-	rho : 1.74 ,
-	Elast : 1.51 ,
-	ICRU : [3.79100,4.29300,2862.00000,1009.00000,0.01397] , 
-	IAEA : [4.32219620,4.95332934,2711.05757349,99.32422512,0.01692829] 
-    },    
-    Al : {
-	Z :  13 ,
-	A :  26.982 ,
-	rho : 2.7 ,
-	Elast : 3.39 ,
-	ICRU : [4.15400,4.73900,2766.00000,164.50000,0.02023] , 
-	IAEA : [4.16266645,4.73942640,3007.21967155,192.15430476,0.01478852] 
-    },    
-    Si : {
-	Z :  14 ,
-	A :  28.086 ,
-	rho : 2.33 ,
-	Elast : 4.63 ,
-	ICRU : [4.91400,5.59800,3193.00000,232.70000,0.01419] , 
-	IAEA : [4.56277193,5.17964542,3812.93366288,249.45105835,0.00951865]
-    },
-    P : {
-	Z :  15 ,
-	A :  30.974 ,
-	rho : 1 ,
-	Elast : 3.43 ,
-	ICRU : [3.23200,3.64700,3561.00000,1560.00000,0.01267] , 
-	IAEA : [] 
-    },    
-    S : {
-	Z :  16 ,
-	A :  32.064 ,
-	rho : 2.07 ,
-	Elast : 2.85 ,
-	ICRU : [3.44700,3.89100,3792.00000,1219.00000,0.01211] , 
-	IAEA : [] 
-    },    
-    Cl : {
-	Z :  17 ,
-	A :  35.453 ,
-	rho : 2.03 ,
-	Elast : 1.4 ,
-	ICRU : [5.30100,6.00800,3969.00000,645.09998,0.01183] , 
-	IAEA : [5.18954121,5.87010049,5726.20198003,338.90592713,0.00527894] 
-    },    
-    Ar : {
-	Z :  18 ,
-	A :  39.948 ,
-	rho : 1.77 ,
-	Elast : 0.08 ,
-	ICRU : [5.73100,6.50000,4253.00000,530.00000,0.01123] , 
-	IAEA : [] 
-    },    
-    K : {
-	Z :  19 ,
-	A :  39.102 ,
-	rho : 0.86 ,
-	Elast : 0.93 ,
-	ICRU : [5.15200,5.83300,4482.00000,545.70001,0.01129] , 
-	IAEA : [] 
-    },    
-    Ca : {
-	Z :  20 ,
-	A :  40.08 ,
-	rho : 1.55 ,
-	Elast : 1.84 ,
-	ICRU : [5.52100,6.25200,4710.00000,553.29999,0.01120] , 
-	IAEA : [7.38419020,8.41800474,4257.94547049,311.84732092,0.01482602] 
-    },    
-    Sc : {
-	Z :  21 ,
-	A :  44.956 ,
-	rho : 2.99 ,
-	Elast : 3.9 ,
-	ICRU : [5.20100,5.88400,4938.00000,560.90002,0.01000] , 
-	IAEA : [6.27366940,7.11486087,5202.32117316,349.64931132,0.00808596] 
-    },    
-    Ti : {
-	Z :  22 ,
-	A :  47.9 ,
-	rho : 4.54 ,
-	Elast : 4.85 ,
-	ICRU : [4.85800,5.48900,5260.00000,651.09998,0.00893] , 
-	IAEA : [4.89215322,5.52996090,4733.05002706,821.54929980,0.01141794] 
-    },
-    V : {
-	Z :  23 ,
-	A :  50.942 ,
-	rho : 6.11 ,
-	Elast : 5.31 ,
-	ICRU : [4.47900,5.05500,5391.00000,952.29999,0.00912] , 
-	IAEA : [4.39418898,4.95984106,5216.28902299,873.00768319,0.00982301]
-    },
-    Cr : {
-	Z :  24 ,
-	A :  51.996 ,
-	rho : 7.19 ,
-	Elast : 4.1 ,
-	ICRU : [3.98300,4.48900,5616.00000,1336.00000,0.00841] , 
-	IAEA : [4.22355616,4.76724205,4805.40719904,1062.25237873,0.01508696] 
-    },
-    Mn : {
-	Z :  25 ,
-	A :  54.938 ,
-	rho : 7.43 ,
-	Elast : 2.92 ,
-	ICRU : [3.46900,3.90700,5725.00000,1461.00000,0.00883] , 
-	IAEA : [3.45870888,3.89580224,5452.18588822,1778.16054656,0.01057380] 
-    },
-    Fe : {
-	Z :  26 ,
-	A :  55.847 ,
-	rho : 7.87 ,
-	Elast : 4.28 ,
-	ICRU : [3.51900,3.96300,6065.00000,1243.00000,0.00778] , 
-	IAEA : [3.69846643,4.16916938,5392.90710239,1040.38447053,0.01152298] 
-    },
-    Co : {
-	Z :  27 ,
-	A :  58.933 ,
-	rho : 8.9 ,
-	Elast : 4.39 ,
-	ICRU : [3.14000,3.53500,6288.00000,1372.00000,0.00736] , 
-	IAEA : [3.55890909,4.00775461,6796.04145497,933.86447935,0.00558368] 
-    },
-    Ni : {
-	Z :  28 ,
-	A :  58.71 ,
-	rho : 8.9 ,
-	Elast : 4.44 ,
-	ICRU : [3.55300,4.00400,6205.00000,555.09998,0.00876] , 
-	IAEA : [3.42262695,3.86234880,4759.65515188,520.18934465,0.02026669] 
-    },
-    Cu : {
-	Z :  29 ,
-	A :  63.54 ,
-	rho : 8.96 ,
-	Elast : 3.49 ,
-	ICRU : [3.69600,4.19400,4649.00000,81.13000,0.02242] , 
-	IAEA : [3.54912421,4.02142201,4344.22605325,128.32905834,0.02886218] 
-    },
-    Zn : {
-	Z :  30 ,
-	A :  65.37 ,
-	rho : 7.13 ,
-	Elast : 1.35 ,
-	ICRU : [4.21000,4.75000,6953.00000,295.20001,0.00681] , 
-	IAEA : [4.31895518,4.91763977,5346.03925560,46.16548699,0.01518164] 
-    },
-    Ga : {
-	Z :  31 ,
-	A :  69.72 ,
-	rho : 5.91 ,
-	Elast : 2.81 ,
-	ICRU : [5.04100,5.69700,7137.00000,202.60001,0.00673] , 
-	IAEA : [4.11015447,4.63998531,7681.41419449,149.38563152,0.00628772] 
-    },
-    Ge : {
-	Z :  32 ,
-	A :  72.59 ,
-	rho : 5.32 ,
-	Elast : 3.85 ,
-	ICRU : [5.55400,6.30000,6496.00000,110.00000,0.00969] , 
-	IAEA : [5.80984815,6.60667983,6039.04808738,87.19744473,0.01158192] 
-    },
-    As : {
-	Z :  33 ,
-	A :  74.922 ,
-	rho : 5.72 ,
-	Elast : 2.96 ,
-	ICRU : [5.32300,6.01200,7611.00000,292.50000,0.00645] , 
-	IAEA : [] 
-    },
-    Se : {
-	Z :  34 ,
-	A :  78.96 ,
-	rho : 4.79 ,
-	Elast : 2.25 ,
-	ICRU : [5.87400,6.65600,7395.00000,117.50000,0.00768] , 
-	IAEA : [5.58734301,6.31119973,8423.01872583,221.61559131,0.00530434] 
-    },
-    Br : {
-	Z :  35 ,
-	A :  79.909 ,
-	rho : 3.14 ,
-	Elast : 1.22 ,
-	ICRU : [6.65800,7.53600,7694.00000,222.30000,0.00651] , 
-	IAEA : [6.28480648,7.09489448,11732.76411988,150.96205589,0.00281298] 
-    },
-    Kr : {
-	Z :  36 ,
-	A :  83.8 ,
-	rho : 3.1 ,
-	Elast : 0.12 ,
-	ICRU : [6.41300,7.24000,11850.00000,153.70000,0.00288] , 
-	IAEA : [6.47378266,7.31581518,9199.06183849,216.98680923,0.00437111] 
-    },
-    Rb : {
-	Z :  37 ,
-	A :  85.47 ,
-	rho : 1.53 ,
-	Elast : 0.85 ,
-	ICRU : [5.69400,6.42900,8478.00000,292.89999,0.00609] , 
-	IAEA : [8.48759187,9.62951209,7271.11124671,272.67996745,0.00818815] 
-    },
-    Sr : {
-	Z :  38 ,
-	A :  87.62 ,
-	rho : 2.54 ,
-	Elast : 1.72 ,
-	ICRU : [6.33900,7.15900,8693.00000,330.29999,0.00600] , 
-	IAEA : [8.66447838,9.84912713,5979.31960977,334.15705556,0.01184544] 
-    },
-    Y : {
-	Z :  39 ,
-	A :  88.905 ,
-	rho : 4.47 ,
-	Elast : 4.37 ,
-	ICRU : [6.40700,7.23400,8907.00000,367.79999,0.00589] , 
-	IAEA : [7.54854264,8.54789357,6885.34110669,429.53252110,0.00930644] 
-    },
-    Zr : {
-	Z :  40 ,
-	A :  91.22 ,
-	rho : 6.51 ,
-	Elast : 6.25 ,
-	ICRU : [6.73400,7.60300,9120.00000,405.20001,0.00576] , 
-	IAEA : [6.24168401,7.04236496,10674.06252597,269.66181445,0.00339805] 
-    },
-    Nb : {
-	Z :  41 ,
-	A :  92.906 ,
-	rho : 8.57 ,
-	Elast : 7.57 ,
-	ICRU : [6.90100,7.79100,9333.00000,442.70001,0.00559] , 
-	IAEA : [5.96194954,6.72632300,10250.57513827,275.25886405,0.00386599] 
-    },
-    Mo : {
-	Z :  42 ,
-	A :  95.94 ,
-	rho : 10.22 ,
-	Elast : 6.82 ,
-	ICRU : [6.42400,7.24800,9545.00000,480.20001,0.00538] , 
-	IAEA : [5.58867862,6.29983727,9573.16605660,523.57577519,0.00473082] 
-    },
-    Tc : {
-	Z :  43 ,
-	A :  98 ,
-	rho : 11.5 ,
-	Elast : 6.85 ,
-	ICRU : [6.79900,7.67100,9756.00000,517.59998,0.00532] , 
-	IAEA : [] 
-    },
-    Ru : {
-	Z :  44 ,
-	A :  101.07 ,
-	rho : 12.37 ,
-	Elast : 6.74 ,
-	ICRU : [6.10900,6.88700,9966.00000,555.09998,0.00515] , 
-	IAEA : [] 
-    },
-    Rh : {
-	Z :  45 ,
-	A :  102.905 ,
-	rho : 12.41 ,
-	Elast : 5.75 ,
-	ICRU : [5.92400,6.67700,10180.00000,592.50000,0.00492] , 
-	IAEA : [] 
-    },
-    Pd : {
-	Z :  46 ,
-	A :  106.4 ,
-	rho : 12.02 ,
-	Elast : 3.89 ,
-	ICRU : [5.23800,5.90000,10380.00000,630.00000,0.00476] , 
-	IAEA : [4.74762031,5.34871025,8086.17802763,942.05721488,0.00842671]
-    },
-    Ag : {
-	Z :  47 ,
-	A :  107.87 ,
-	rho : 10.5 ,
-	Elast : 2.95 ,
-	ICRU : [5.34500,6.03800,6790.00000,397.79999,0.01676] , 
-	IAEA : [5.42052240,6.17824432,4642.18214950,90.75350922,0.06061521] 
-    },
-    Cd : {
-	Z :  48 ,
-	A :  112.4 ,
-	rho : 8.65 ,
-	Elast : 1.16 ,
-	ICRU : [5.81400,6.55400,10800.00000,355.50000,0.00463] , 
-	IAEA : [4.89128643,5.50754704,11831.77188508,396.06905848,0.00412049] 
-    },
-    In : {
-	Z :  49 ,
-	A :  114.82 ,
-	rho : 7.31 ,
-	Elast : 2.52 ,
-	ICRU : [6.22900,7.02400,11010.00000,370.89999,0.00454] , 
-	IAEA : [5.98978289,6.77050040,6343.54720062,564.65410792,0.02270520] 
-    },
-    Sn : {
-	Z :  50 ,
-	A :  118.69 ,
-	rho : 7.31 ,
-	Elast : 3.14 ,
-	ICRU : [6.40900,7.22700,11210.00000,386.39999,0.00447] , 
-	IAEA : [6.73191335,7.61854414,6946.18830598,347.19391310,0.01677246] 
-    },
-    Sb : {
-	Z :  51 ,
-	A :  121.75 ,
-	rho : 6.68 ,
-	Elast : 2.75 ,
-	ICRU : [7.50000,8.48000,8608.00000,348.00000,0.00907] , 
-	IAEA : [7.92400389,8.99628409,5736.29881090,403.11722206,0.02973016] 
-    },
-    Te : {
-	Z :  52 ,
-	A :  127.6 ,
-	rho : 6.24 ,
-	Elast : 2.23 ,
-	ICRU : [6.97900,7.87100,11620.00000,392.39999,0.00440] , 
-	IAEA : [] 
-    },
-    I : {
-	Z :  53 ,
-	A :  126.904 ,
-	rho : 4.93 ,
-	Elast : 1.11 ,
-	ICRU : [7.72500,8.71600,11830.00000,394.79999,0.00438] , 
-	IAEA : [] 
-    },
-    Xe : {
-	Z :  54 ,
-	A :  131.3 ,
-	rho : 3.8 ,
-	Elast : 0.16 ,
-	ICRU : [8.33700,9.42500,10510.00000,269.60001,0.00621] , 
-	IAEA : [8.96826400,10.16224223,8543.27304860,283.90067433,0.01019984] 
-    },
-    Cs : {
-	Z :  55 ,
-	A :  132.905 ,
-	rho : 1.9 ,
-	Elast : 0.8 ,
-	ICRU : [7.28700,8.21800,12230.00000,399.70001,0.00445] , 
-	IAEA : [] 
-    },
-    Ba : {
-	Z :  56 ,
-	A :  137.34 ,
-	rho : 3.59 ,
-	Elast : 1.9 ,
-	ICRU : [7.89900,8.91100,12430.00000,402.10001,0.00451] , 
-	IAEA : [] 
-    },
-    La : {
-	Z :  57 ,
-	A :  138.91 ,
-	rho : 6.15 ,
-	Elast : 4.47 ,
-	ICRU : [8.04100,9.07100,12630.00000,404.50000,0.00454] , 
-	IAEA : [8.16949326,9.21144395,13933.96869212,429.99442382,0.00347440] 
-    },
-    Ce : {
-	Z :  58 ,
-	A :  140.12 ,
-	rho : 6.77 ,
-	Elast : 4.32 ,
-	ICRU : [7.48800,8.44400,12830.00000,406.89999,0.00442] , 
-	IAEA : [] 
-    },
-    Pr : {
-	Z :  59 ,
-	A :  140.907 ,
-	rho : 6.77 ,
-	Elast : 3.7 ,
-	ICRU : [7.29100,8.21900,13030.00000,409.29999,0.00430] , 
-	IAEA : [] 
-    },
-    Nd : {
-	Z :  60 ,
-	A :  144.24001 ,
-	rho : 7.01 ,
-	Elast : 3.4 ,
-	ICRU : [7.09800,8.00000,13230.00000,411.79999,0.00418] , 
-	IAEA : [8.60801371,10.26060598,6798.65217629,7.06731816,0.02713704] 
-    },
-    Pm : {
-	Z :  61 ,
-	A :  147 ,
-	rho : 7.22 ,
-	Elast : 0.1 ,
-	ICRU : [6.90900,7.78600,13430.00000,414.20001,0.00406] , 
-	IAEA : [] 
-    },
-    Sm : {
-	Z :  62 ,
-	A :  150.35001 ,
-	rho : 7.52 ,
-	Elast : 2.14 ,
-	ICRU : [6.72800,7.58000,13620.00000,416.60001,0.00398] , 
-	IAEA : [] 
-    },
-    Eu : {
-	Z :  63 ,
-	A :  151.96001 ,
-	rho : 5.24 ,
-	Elast : 1.86 ,
-	ICRU : [6.55100,7.38000,13820.00000,419.00000,0.00388] , 
-	IAEA : [] 
-    },
-    Gd : {
-	Z :  64 ,
-	A :  157.25 ,
-	rho : 7.9 ,
-	Elast : 4.14 ,
-	ICRU : [6.73900,7.59200,14020.00000,421.39999,0.00386] , 
-	IAEA : [8.38379061,9.50012183,10804.38767518,110.71066098,0.00761735] 
-    },
-    Tb : {
-	Z :  65 ,
-	A :  158.924 ,
-	rho : 8.23 ,
-	Elast : 4.05 ,
-	ICRU : [6.21200,6.99600,14210.00000,423.89999,0.00372] , 
-	IAEA : [8.69907359,10.36476708,5985.09307671,7.76175759,0.04237031] 
-    },
-    Dy : {
-	Z :  66 ,
-	A :  162.5 ,
-	rho : 8.55 ,
-	Elast : 3.04 ,
-	ICRU : [5.51700,6.21000,14400.00000,426.29999,0.00363] , 
-	IAEA : [6.69350026,7.81543484,5289.65107666,12.11560717,0.05746489] 
-    },
-    Ho : {
-	Z :  67 ,
-	A :  164.92999 ,
-	rho : 8.8 ,
-	Elast : 3.14 ,
-	ICRU : [5.22000,5.87400,14600.00000,428.70001,0.00350] , 
-	IAEA : [] 
-    },
-    Er : {
-	Z :  68 ,
-	A :  167.25999 ,
-	rho : 9.07 ,
-	Elast : 3.29 ,
-	ICRU : [5.07100,5.70600,14790.00000,433.00000,0.00341] , 
-	IAEA : [4.31497049,4.85346547,12995.54504003,691.00380321,0.00499022] 
-    },
-    Tm : {
-	Z :  69 ,
-	A :  168.93401 ,
-	rho : 9.32 ,
-	Elast : 2.42 ,
-	ICRU : [4.92600,5.54200,14980.00000,433.50000,0.00334] , 
-	IAEA : [] 
-    },
-    Yb : {
-	Z :  70 ,
-	A :  173.03999 ,
-	rho : 6.9 ,
-	Elast : 1.6 ,
-	ICRU : [4.78800,5.38600,15170.00000,435.89999,0.00329] , 
-	IAEA : [6.38304258,7.21491284,12327.74719685,82.30064162,0.00516845] 
-    },
-    Lu : {
-	Z :  71 ,
-	A :  174.97 ,
-	rho : 9.84 ,
-	Elast : 4.43 ,
-	ICRU : [4.89300,5.50500,15360.00000,438.29999,0.00324] , 
-	IAEA : [7.00205766,8.09268611,4589.67801229,31.06321362,0.11142124] 
-    },
-    Hf : {
-	Z :  72 ,
-	A :  178.49001 ,
-	rho : 13.31 ,
-	Elast : 6.44 ,
-	ICRU : [5.02800,5.65700,15550.00000,440.79999,0.00320] , 
-	IAEA : [5.32763157,6.00140558,13853.49562768,206.93150053,0.00411522] 
-    },
-    Ta : {
-	Z :  73 ,
-	A :  180.948 ,
-	rho : 16.65 ,
-	Elast : 8.1 ,
-	ICRU : [4.73800,5.32900,15740.00000,443.20001,0.00319] , 
-	IAEA : [5.15280708,5.80545310,12417.25115167,231.48549646,0.00530723] 
-    },
-    W : {
-	Z :  74 ,
-	A :  183.85001 ,
-	rho : 19.35 ,
-	Elast : 8.9 ,
-	ICRU : [4.58700,5.16000,15410.00000,415.29999,0.00341] , 
-	IAEA : [4.81261962,5.41579909,15245.84079976,286.09077182,0.00344862] 
-    },
-    Re : {
-	Z :  75 ,
-	A :  186.2 ,
-	rho : 21.04 ,
-	Elast : 8.03 ,
-	ICRU : [5.20100,5.85100,16120.00000,441.60001,0.00312] , 
-	IAEA : [4.26021967,4.80273372,3191.05524918,76051.48730893,0.00003161] 
-    },
-    Os : {
-	Z :  76 ,
-	A :  190.2 ,
-	rho : 22.6 ,
-	Elast : 8.17 ,
-	ICRU : [5.07100,5.70400,16300.00000,440.89999,0.00308] , 
-	IAEA : [] 
-    },
-    Ir : {
-	Z :  77 ,
-	A :  192.2 ,
-	rho : 22.4 ,
-	Elast : 6.94 ,
-	ICRU : [4.94600,5.56300,16490.00000,440.10001,0.00296] , 
-	IAEA : [4.16543126,4.68849191,6887.94139926,4263.90641919,0.00000004] 
-    },
-    Pt : {
-	Z :  78 ,
-	A :  195.09 ,
-	rho : 21.45 ,
-	Elast : 5.84 ,
-	ICRU : [4.47700,5.03400,16670.00000,439.29999,0.00287] , 
-	IAEA : [4.62228847,5.20033612,16308.49878855,266.02263275,0.00309560] 
-    },
-    Au : {
-	Z :  79 ,
-	A :  196.967 ,
-	rho : 19.32 ,
-	Elast : 3.81 ,
-	ICRU : [4.84400,5.45800,7852.00000,975.79999,0.02077] , 
-	IAEA : [4.84253074,5.44769072,15602.21662947,412.25485588,0.00331383]
-    },
-    Hg : {
-	Z :  80 ,
-	A :  200.59 ,
-	rho : 13.55 ,
-	Elast : 0.67 ,
-	ICRU : [4.30700,4.84300,17040.00000,487.79999,0.00288] , 
-	IAEA : [] 
-    },
-    Tl : {
-	Z :  81 ,
-	A :  204.37 ,
-	rho : 11.85 ,
-	Elast : 1.88 ,
-	ICRU : [4.72300,5.31100,17220.00000,537.00000,0.00291] , 
-	IAEA : [] 
-    },
-    Pb : {
-	Z :  82 ,
-	A :  207.19 ,
-	rho : 11.35 ,
-	Elast : 2.03 ,
-	ICRU : [5.31900,5.98200,17400.00000,586.29999,0.00287] , 
-	IAEA : [9.42473604,17.46235676,11946.86905435,0.00000001,0.00652912] 
-    },
-    Bi : {
-	Z :  83 ,
-	A :  208.98 ,
-	rho : 9.75 ,
-	Elast : 2.18 ,
-	ICRU : [5.95600,6.70000,17800.00000,677.00000,0.00266] , 
-	IAEA : [10.25823796,12.26670424,7765.05387481,7.37274504,0.02310050] 
-    },
-    Po : {
-	Z :  84 ,
-	A :  210 ,
-	rho : 9.3 ,
-	Elast : 1.5 ,
-	ICRU : [6.15800,6.92800,17770.00000,586.29999,0.00281] , 
-	IAEA : [] 
-    },
-    At : {
-	Z :  85 ,
-	A :  210 ,
-	rho : 0 ,
-	Elast : 0.1 ,
-	ICRU : [6.20300,6.97900,17950.00000,586.29999,0.00278] , 
-	IAEA : [] 
-    },
-    Rn : {
-	Z :  86 ,
-	A :  222 ,
-	rho : 0 ,
-	Elast : 0.2 ,
-	ICRU : [6.18100,6.95400,18120.00000,586.29999,0.00275] , 
-	IAEA : [] 
-    },
-    Fr : {
-	Z :  87 ,
-	A :  223 ,
-	rho : 0 ,
-	Elast : 0.1 ,
-	ICRU : [6.94900,7.82000,18300.00000,586.29999,0.00274] , 
-	IAEA : [] 
-    },
-    Ra : {
-	Z :  88 ,
-	A :  226 ,
-	rho : 0 ,
-	Elast : 1.66 ,
-	ICRU : [7.50600,8.44800,18480.00000,586.29999,0.00273] , 
-	IAEA : [] 
-    },
-    Ac : {
-	Z :  89 ,
-	A :  227 ,
-	rho : 0 ,
-	Elast : 4.25 ,
-	ICRU : [7.64800,8.60900,18660.00000,586.29999,0.00270] , 
-	IAEA : [] 
-    },
-    Th : {
-	Z :  90 ,
-	A :  232.03799 ,
-	rho : 11.72 ,
-	Elast : 6.2 ,
-	ICRU : [7.71100,8.67900,18830.00000,586.29999,0.00264] , 
-	IAEA : [] 
-    },
-    Pa : {
-	Z :  91 ,
-	A :  231 ,
-	rho : 15.4 ,
-	Elast : 0.1 ,
-	ICRU : [7.40700,8.33600,19010.00000,586.29999,0.00260] , 
-	IAEA : [] 
-    },
-    U : {
-	Z :  92 ,
-	A :  238.03 ,
-	rho : 18.95 ,
-	Elast : 5.55 ,
-	ICRU : [7.29000,8.20400,19180.00000,586.29999,0.00267] , 
-	IAEA : [] 
-    },
-    "" : {
-	Z :  0 ,
-	A :  0.0 ,
-	rho : 0 ,
-	Elast : 0 ,
-	ICRU : [0,0,0,0,0] , 
-	IAEA : [] 
-    }
-};
 
-// Extra densities 
-var rhos = {
-    "NbN":8.47,
-    "Bi2Se3":7.51,
-    "La2CuO4": 7.08,
-    "La1.84Sr0.16CuO4": 6.94,
-    "N2":1.145,
-    "ZnO":5.61,
-    "ZnSe":5.26,
-    "ZnS":4.09,
-    "ZrO":6.0,
-    "Gd3Ga5O12":7.08,
-    "MgAl2O4":3.60,
-    "NdGaO3":7.57,
-    "YAlO3":4.88,
-    "Y3Al5O12":4.55,
-    "LiF":2.60,
-    "CaF2":3.18,
-    "BaFe":4.83,
-    "MgF2":3.18,
-    "SiO2":2.65,
-    "TiO2":4.26,
-    "KTaO3":6.967,
-    "LaAlO3":6.70,
-    "Al2O3":3.98,
-    "SrTiO3":5.12,
-    "SrLaGaO4":6.389,
-    "SrLaAlO4":5.924,
-    "NbSe2":6.30,
-    "MgO":3.58,
-    "YBa2Cu3O7":6.54,
-    "GaAs":5.32,
-    "C60":1.65
+function isObject(item) {
+    // simple object check
+    // https://stackoverflow.com/a/34749873
+    return (item && typeof item === 'object' && !Array.isArray(item));
+}
+
+
+function mergeDeep(target, ...sources) {
+    // function for deep-merging objects
+    // https://stackoverflow.com/a/34749873
+    
+    if (!sources.length) {
+        return target;
+    }
+    
+    const source = sources.shift();
+
+    if (isObject(target) && isObject(source)) {
+        for (const key in source) {
+            if (isObject(source[key])) {
+                if (!target[key]) Object.assign(target, { [key]: {} });
+                mergeDeep(target[key], source[key]);
+            } else {
+                Object.assign(target, { [key]: source[key] });
+            }
+        }
+    }
+
+    return mergeDeep(target, ...sources);
+}
+
+
+// element data
+const elements = {
+	"H": {
+		"Z": 1,
+		"A": 1.008,
+		"rho": 0.08,
+		"Elast": 0.1
+	},
+	"He": {
+		"Z": 2,
+		"A": 4.003,
+		"rho": 0.12,
+		"Elast": 0.1
+	},
+	"Li": {
+		"Z": 3,
+		"A": 6.939,
+		"rho": 0.53,
+		"Elast": 1.63
+	},
+	"Be": {
+		"Z": 4,
+		"A": 9.012,
+		"rho": 1.85,
+		"Elast": 3.32
+	},
+	"B": {
+		"Z": 5,
+		"A": 10.811,
+		"rho": 2.34,
+		"Elast": 5.77
+	},
+	"C": {
+		"Z": 6,
+		"A": 12.011,
+		"rho": 2.26,
+		"Elast": 7.37
+	},
+	"N": {
+		"Z": 7,
+		"A": 14.007,
+		"rho": 1.03,
+		"Elast": 4.92
+	},
+	"O": {
+		"Z": 8,
+		"A": 15.999,
+		"rho": 2,
+		"Elast": 2.6
+	},
+	"F": {
+		"Z": 9,
+		"A": 18.998,
+		"rho": 1.11,
+		"Elast": 0.84
+	},
+	"Ne": {
+		"Z": 10,
+		"A": 20.183,
+		"rho": 1.5,
+		"Elast": 0.02
+	},
+	"Na": {
+		"Z": 11,
+		"A": 22.99,
+		"rho": 0.97,
+		"Elast": 1.11
+	},
+	"Mg": {
+		"Z": 12,
+		"A": 24.312,
+		"rho": 1.74,
+		"Elast": 1.51
+	},
+	"Al": {
+		"Z": 13,
+		"A": 26.982,
+		"rho": 2.7,
+		"Elast": 3.39
+	},
+	"Si": {
+		"Z": 14,
+		"A": 28.086,
+		"rho": 2.33,
+		"Elast": 4.63
+	},
+	"P": {
+		"Z": 15,
+		"A": 30.974,
+		"rho": 1,
+		"Elast": 3.43
+	},
+	"S": {
+		"Z": 16,
+		"A": 32.064,
+		"rho": 2.07,
+		"Elast": 2.85
+	},
+	"Cl": {
+		"Z": 17,
+		"A": 35.453,
+		"rho": 2.03,
+		"Elast": 1.4
+	},
+	"Ar": {
+		"Z": 18,
+		"A": 39.948,
+		"rho": 1.77,
+		"Elast": 0.08
+	},
+	"K": {
+		"Z": 19,
+		"A": 39.102,
+		"rho": 0.86,
+		"Elast": 0.93
+	},
+	"Ca": {
+		"Z": 20,
+		"A": 40.08,
+		"rho": 1.55,
+		"Elast": 1.84
+	},
+	"Sc": {
+		"Z": 21,
+		"A": 44.956,
+		"rho": 2.99,
+		"Elast": 3.9
+	},
+	"Ti": {
+		"Z": 22,
+		"A": 47.9,
+		"rho": 4.54,
+		"Elast": 4.85
+	},
+	"V": {
+		"Z": 23,
+		"A": 50.942,
+		"rho": 6.11,
+		"Elast": 5.31
+	},
+	"Cr": {
+		"Z": 24,
+		"A": 51.996,
+		"rho": 7.19,
+		"Elast": 4.1
+	},
+	"Mn": {
+		"Z": 25,
+		"A": 54.938,
+		"rho": 7.43,
+		"Elast": 2.92
+	},
+	"Fe": {
+		"Z": 26,
+		"A": 55.847,
+		"rho": 7.87,
+		"Elast": 4.28
+	},
+	"Co": {
+		"Z": 27,
+		"A": 58.933,
+		"rho": 8.9,
+		"Elast": 4.39
+	},
+	"Ni": {
+		"Z": 28,
+		"A": 58.71,
+		"rho": 8.9,
+		"Elast": 4.44
+	},
+	"Cu": {
+		"Z": 29,
+		"A": 63.54,
+		"rho": 8.96,
+		"Elast": 3.49
+	},
+	"Zn": {
+		"Z": 30,
+		"A": 65.37,
+		"rho": 7.13,
+		"Elast": 1.35
+	},
+	"Ga": {
+		"Z": 31,
+		"A": 69.72,
+		"rho": 5.91,
+		"Elast": 2.81
+	},
+	"Ge": {
+		"Z": 32,
+		"A": 72.59,
+		"rho": 5.32,
+		"Elast": 3.85
+	},
+	"As": {
+		"Z": 33,
+		"A": 74.922,
+		"rho": 5.72,
+		"Elast": 2.96
+	},
+	"Se": {
+		"Z": 34,
+		"A": 78.96,
+		"rho": 4.79,
+		"Elast": 2.25
+	},
+	"Br": {
+		"Z": 35,
+		"A": 79.909,
+		"rho": 3.14,
+		"Elast": 1.22
+	},
+	"Kr": {
+		"Z": 36,
+		"A": 83.8,
+		"rho": 3.1,
+		"Elast": 0.12
+	},
+	"Rb": {
+		"Z": 37,
+		"A": 85.47,
+		"rho": 1.53,
+		"Elast": 0.85
+	},
+	"Sr": {
+		"Z": 38,
+		"A": 87.62,
+		"rho": 2.54,
+		"Elast": 1.72
+	},
+	"Y": {
+		"Z": 39,
+		"A": 88.905,
+		"rho": 4.47,
+		"Elast": 4.37
+	},
+	"Zr": {
+		"Z": 40,
+		"A": 91.22,
+		"rho": 6.51,
+		"Elast": 6.25
+	},
+	"Nb": {
+		"Z": 41,
+		"A": 92.906,
+		"rho": 8.57,
+		"Elast": 7.57
+	},
+	"Mo": {
+		"Z": 42,
+		"A": 95.94,
+		"rho": 10.22,
+		"Elast": 6.82
+	},
+	"Tc": {
+		"Z": 43,
+		"A": 98,
+		"rho": 11.5,
+		"Elast": 6.85
+	},
+	"Ru": {
+		"Z": 44,
+		"A": 101.07,
+		"rho": 12.37,
+		"Elast": 6.74
+	},
+	"Rh": {
+		"Z": 45,
+		"A": 102.905,
+		"rho": 12.41,
+		"Elast": 5.75
+	},
+	"Pd": {
+		"Z": 46,
+		"A": 106.4,
+		"rho": 12.02,
+		"Elast": 3.89
+	},
+	"Ag": {
+		"Z": 47,
+		"A": 107.87,
+		"rho": 10.5,
+		"Elast": 2.95
+	},
+	"Cd": {
+		"Z": 48,
+		"A": 112.4,
+		"rho": 8.65,
+		"Elast": 1.16
+	},
+	"In": {
+		"Z": 49,
+		"A": 114.82,
+		"rho": 7.31,
+		"Elast": 2.52
+	},
+	"Sn": {
+		"Z": 50,
+		"A": 118.69,
+		"rho": 7.31,
+		"Elast": 3.14
+	},
+	"Sb": {
+		"Z": 51,
+		"A": 121.75,
+		"rho": 6.68,
+		"Elast": 2.75
+	},
+	"Te": {
+		"Z": 52,
+		"A": 127.6,
+		"rho": 6.24,
+		"Elast": 2.23
+	},
+	"I": {
+		"Z": 53,
+		"A": 126.904,
+		"rho": 4.93,
+		"Elast": 1.11
+	},
+	"Xe": {
+		"Z": 54,
+		"A": 131.3,
+		"rho": 3.8,
+		"Elast": 0.16
+	},
+	"Cs": {
+		"Z": 55,
+		"A": 132.905,
+		"rho": 1.9,
+		"Elast": 0.8
+	},
+	"Ba": {
+		"Z": 56,
+		"A": 137.34,
+		"rho": 3.59,
+		"Elast": 1.9
+	},
+	"La": {
+		"Z": 57,
+		"A": 138.91,
+		"rho": 6.15,
+		"Elast": 4.47
+	},
+	"Ce": {
+		"Z": 58,
+		"A": 140.12,
+		"rho": 6.77,
+		"Elast": 4.32
+	},
+	"Pr": {
+		"Z": 59,
+		"A": 140.907,
+		"rho": 6.77,
+		"Elast": 3.7
+	},
+	"Nd": {
+		"Z": 60,
+		"A": 144.24001,
+		"rho": 7.01,
+		"Elast": 3.4
+	},
+	"Pm": {
+		"Z": 61,
+		"A": 147,
+		"rho": 7.22,
+		"Elast": 0.1
+	},
+	"Sm": {
+		"Z": 62,
+		"A": 150.35001,
+		"rho": 7.52,
+		"Elast": 2.14
+	},
+	"Eu": {
+		"Z": 63,
+		"A": 151.96001,
+		"rho": 5.24,
+		"Elast": 1.86
+	},
+	"Gd": {
+		"Z": 64,
+		"A": 157.25,
+		"rho": 7.9,
+		"Elast": 4.14
+	},
+	"Tb": {
+		"Z": 65,
+		"A": 158.924,
+		"rho": 8.23,
+		"Elast": 4.05
+	},
+	"Dy": {
+		"Z": 66,
+		"A": 162.5,
+		"rho": 8.55,
+		"Elast": 3.04
+	},
+	"Ho": {
+		"Z": 67,
+		"A": 164.92999,
+		"rho": 8.8,
+		"Elast": 3.14
+	},
+	"Er": {
+		"Z": 68,
+		"A": 167.25999,
+		"rho": 9.07,
+		"Elast": 3.29
+	},
+	"Tm": {
+		"Z": 69,
+		"A": 168.93401,
+		"rho": 9.32,
+		"Elast": 2.42
+	},
+	"Yb": {
+		"Z": 70,
+		"A": 173.03999,
+		"rho": 6.9,
+		"Elast": 1.6
+	},
+	"Lu": {
+		"Z": 71,
+		"A": 174.97,
+		"rho": 9.84,
+		"Elast": 4.43
+	},
+	"Hf": {
+		"Z": 72,
+		"A": 178.49001,
+		"rho": 13.31,
+		"Elast": 6.44
+	},
+	"Ta": {
+		"Z": 73,
+		"A": 180.948,
+		"rho": 16.65,
+		"Elast": 8.1
+	},
+	"W": {
+		"Z": 74,
+		"A": 183.85001,
+		"rho": 19.35,
+		"Elast": 8.9
+	},
+	"Re": {
+		"Z": 75,
+		"A": 186.2,
+		"rho": 21.04,
+		"Elast": 8.03
+	},
+	"Os": {
+		"Z": 76,
+		"A": 190.2,
+		"rho": 22.6,
+		"Elast": 8.17
+	},
+	"Ir": {
+		"Z": 77,
+		"A": 192.2,
+		"rho": 22.4,
+		"Elast": 6.94
+	},
+	"Pt": {
+		"Z": 78,
+		"A": 195.09,
+		"rho": 21.45,
+		"Elast": 5.84
+	},
+	"Au": {
+		"Z": 79,
+		"A": 196.967,
+		"rho": 19.32,
+		"Elast": 3.81
+	},
+	"Hg": {
+		"Z": 80,
+		"A": 200.59,
+		"rho": 13.55,
+		"Elast": 0.67
+	},
+	"Tl": {
+		"Z": 81,
+		"A": 204.37,
+		"rho": 11.85,
+		"Elast": 1.88
+	},
+	"Pb": {
+		"Z": 82,
+		"A": 207.19,
+		"rho": 11.35,
+		"Elast": 2.03
+	},
+	"Bi": {
+		"Z": 83,
+		"A": 208.98,
+		"rho": 9.75,
+		"Elast": 2.18
+	},
+	"Po": {
+		"Z": 84,
+		"A": 210,
+		"rho": 9.3,
+		"Elast": 1.5
+	},
+	"At": {
+		"Z": 85,
+		"A": 210,
+		"rho": 0,
+		"Elast": 0.1
+	},
+	"Rn": {
+		"Z": 86,
+		"A": 222,
+		"rho": 0,
+		"Elast": 0.2
+	},
+	"Fr": {
+		"Z": 87,
+		"A": 223,
+		"rho": 0,
+		"Elast": 0.1
+	},
+	"Ra": {
+		"Z": 88,
+		"A": 226,
+		"rho": 0,
+		"Elast": 1.66
+	},
+	"Ac": {
+		"Z": 89,
+		"A": 227,
+		"rho": 0,
+		"Elast": 4.25
+	},
+	"Th": {
+		"Z": 90,
+		"A": 232.03799,
+		"rho": 11.72,
+		"Elast": 6.2
+	},
+	"Pa": {
+		"Z": 91,
+		"A": 231,
+		"rho": 15.4,
+		"Elast": 0.1
+	},
+	"U": {
+		"Z": 92,
+		"A": 238.03,
+		"rho": 18.95,
+		"Elast": 5.55
+	},
+	"": {
+		"Z": 0,
+		"A": 0,
+		"rho": 0,
+		"Elast": 0
+	}
+}
+
+
+// projectile data
+const projectiles = {
+	"muon": {
+		"Z": 1,
+		"A": 0.1134289259,
+		"rho": 0,
+		"Elast": 0,
+		"ICRU": [],
+		"IAEA": []
+	},
+	"Li-8": {
+		"Z": 3,
+		"A": 8.02248624,
+		"rho": 0,
+		"Elast": 0,
+		"ICRU": [],
+		"IAEA": []
+	},
+	"B-12": {
+		"Z": 5,
+		"A": 12.0143526,
+		"rho": 0,
+		"Elast": 0,
+		"ICRU": [],
+		"IAEA": []
+	},
+	"Mg-31": {
+		"Z": 12,
+		"A": 30.996648,
+		"rho": 0,
+		"Elast": 0,
+		"ICRU": [],
+		"IAEA": []
+	}
+}
+
+
+// electronic stopping coefficients from Anderson & Zeigler (1977).
+const az_table = {
+	"H": {
+		"AZ": [
+			1.262,
+			1.44,
+			242.6,
+			12000.0,
+			0.1159
+		]
+	},
+	"He": {
+		"AZ": [
+			1.229,
+			1.397,
+			484.5,
+			5873.0,
+			0.05225
+		]
+	},
+	"Li": {
+		"AZ": [
+			1.411,
+			1.6,
+			725.6,
+			3013.0,
+			0.04578
+		]
+	},
+	"Be": {
+		"AZ": [
+			2.248,
+			2.59,
+			966.0,
+			153.8,
+			0.03475
+		]
+	},
+	"B": {
+		"AZ": [
+			2.474,
+			2.815,
+			1206.0,
+			1060.0,
+			0.02855
+		]
+	},
+	"C": {
+		"AZ": [
+			2.631,
+			2.989,
+			1445.0,
+			957.2,
+			0.02819
+		]
+	},
+	"N": {
+		"AZ": [
+			2.954,
+			3.35,
+			1683.0,
+			1900.0,
+			0.02513
+		]
+	},
+	"O": {
+		"AZ": [
+			2.652,
+			3.0,
+			1920.0,
+			2000.0,
+			0.0223
+		]
+	},
+	"F": {
+		"AZ": [
+			2.085,
+			2.352,
+			2157.0,
+			2634.0,
+			0.01816
+		]
+	},
+	"Ne": {
+		"AZ": [
+			1.951,
+			2.199,
+			2393.0,
+			2699.0,
+			0.01568
+		]
+	},
+	"Na": {
+		"AZ": [
+			2.542,
+			2.869,
+			2628.0,
+			1854.0,
+			0.01472
+		]
+	},
+	"Mg": {
+		"AZ": [
+			3.792,
+			4.293,
+			2862.0,
+			1009.0,
+			0.01397
+		]
+	},
+	"Al": {
+		"AZ": [
+			4.154,
+			4.739,
+			2766.0,
+			164.5,
+			0.01397
+		]
+	},
+	"Si": {
+		"AZ": [
+			4.15,
+			4.7,
+			3329.0,
+			550.0,
+			0.01321
+		]
+	},
+	"P": {
+		"AZ": [
+			3.232,
+			3.647,
+			3561.0,
+			1560.0,
+			0.01267
+		]
+	},
+	"S": {
+		"AZ": [
+			3.447,
+			3.891,
+			3792.0,
+			1219.0,
+			0.01211
+		]
+	},
+	"Cl": {
+		"AZ": [
+			5.047,
+			5.714,
+			4023.0,
+			878.6,
+			0.01178
+		]
+	},
+	"Ar": {
+		"AZ": [
+			5.731,
+			6.5,
+			4253.0,
+			530.0,
+			0.01123
+		]
+	},
+	"K": {
+		"AZ": [
+			5.151,
+			5.833,
+			4482.0,
+			545.7,
+			0.01129
+		]
+	},
+	"Ca": {
+		"AZ": [
+			5.521,
+			6.252,
+			4710.0,
+			553.3,
+			0.01112
+		]
+	},
+	"Sc": {
+		"AZ": [
+			5.201,
+			5.884,
+			4938.0,
+			560.9,
+			0.009995
+		]
+	},
+	"Ti": {
+		"AZ": [
+			4.862,
+			5.496,
+			5165.0,
+			568.5,
+			0.009474
+		]
+	},
+	"V": {
+		"AZ": [
+			4.48,
+			5.055,
+			5391.0,
+			952.3,
+			0.009117
+		]
+	},
+	"Cr": {
+		"AZ": [
+			3.983,
+			4.489,
+			5616.0,
+			1336.0,
+			0.008413
+		]
+	},
+	"Mn": {
+		"AZ": [
+			3.469,
+			3.907,
+			5725.0,
+			1461.0,
+			0.008829
+		]
+	},
+	"Fe": {
+		"AZ": [
+			3.519,
+			3.963,
+			6065.0,
+			1243.0,
+			0.007782
+		]
+	},
+	"Co": {
+		"AZ": [
+			3.14,
+			3.535,
+			6288.0,
+			1372.0,
+			0.007361
+		]
+	},
+	"Ni": {
+		"AZ": [
+			3.553,
+			4.004,
+			6205.0,
+			555.1,
+			0.008763
+		]
+	},
+	"Cu": {
+		"AZ": [
+			3.696,
+			4.175,
+			4673.0,
+			387.8,
+			0.02188
+		]
+	},
+	"Zn": {
+		"AZ": [
+			4.21,
+			4.75,
+			6953.0,
+			295.2,
+			0.006809
+		]
+	},
+	"Ga": {
+		"AZ": [
+			5.041,
+			5.697,
+			7173.0,
+			202.6,
+			0.006725
+		]
+	},
+	"Ge": {
+		"AZ": [
+			5.554,
+			6.3,
+			6496.0,
+			110.0,
+			0.009689
+		]
+	},
+	"As": {
+		"AZ": [
+			5.323,
+			6.012,
+			7611.0,
+			292.5,
+			0.006447
+		]
+	},
+	"Se": {
+		"AZ": [
+			5.874,
+			6.656,
+			7395.0,
+			117.5,
+			0.007684
+		]
+	},
+	"Br": {
+		"AZ": [
+			5.611,
+			6.335,
+			8046.0,
+			365.2,
+			0.006244
+		]
+	},
+	"Kr": {
+		"AZ": [
+			6.411,
+			7.25,
+			8262.0,
+			220.0,
+			0.006087
+		]
+	},
+	"Rb": {
+		"AZ": [
+			5.694,
+			6.429,
+			8478.0,
+			292.9,
+			0.006087
+		]
+	},
+	"Sr": {
+		"AZ": [
+			6.339,
+			7.159,
+			8693.0,
+			330.3,
+			0.006003
+		]
+	},
+	"Y": {
+		"AZ": [
+			6.407,
+			7.234,
+			8907.0,
+			367.8,
+			0.005889
+		]
+	},
+	"Zr": {
+		"AZ": [
+			6.734,
+			7.603,
+			9120.0,
+			405.2,
+			0.005765
+		]
+	},
+	"Nb": {
+		"AZ": [
+			6.902,
+			7.791,
+			9333.0,
+			442.7,
+			0.005587
+		]
+	},
+	"Mo": {
+		"AZ": [
+			6.425,
+			7.248,
+			9545.0,
+			480.2,
+			0.005367
+		]
+	},
+	"Tc": {
+		"AZ": [
+			6.799,
+			7.671,
+			9756.0,
+			517.6,
+			0.005315
+		]
+	},
+	"Ru": {
+		"AZ": [
+			6.108,
+			6.887,
+			9966.0,
+			555.1,
+			0.005151
+		]
+	},
+	"Rh": {
+		"AZ": [
+			5.924,
+			6.677,
+			10180.0,
+			592.5,
+			0.004919
+		]
+	},
+	"Pd": {
+		"AZ": [
+			5.238,
+			5.9,
+			10380.0,
+			630.0,
+			0.004758
+		]
+	},
+	"Ag": {
+		"AZ": [
+			5.623,
+			6.354,
+			7160.0,
+			337.6,
+			0.01394
+		]
+	},
+	"Cd": {
+		"AZ": [
+			5.814,
+			6.554,
+			10800.0,
+			355.5,
+			0.004626
+		]
+	},
+	"In": {
+		"AZ": [
+			6.23,
+			7.024,
+			11010.0,
+			370.9,
+			0.00454
+		]
+	},
+	"Sn": {
+		"AZ": [
+			6.41,
+			7.227,
+			11210.0,
+			386.4,
+			0.004474
+		]
+	},
+	"Sb": {
+		"AZ": [
+			7.5,
+			8.48,
+			8608.0,
+			348.0,
+			0.009074
+		]
+	},
+	"Te": {
+		"AZ": [
+			6.979,
+			7.871,
+			11620.0,
+			392.4,
+			0.004402
+		]
+	},
+	"I": {
+		"AZ": [
+			7.725,
+			8.716,
+			11830.0,
+			394.8,
+			0.004376
+		]
+	},
+	"Xe": {
+		"AZ": [
+			8.231,
+			9.289,
+			12030.0,
+			397.3,
+			0.004384
+		]
+	},
+	"Cs": {
+		"AZ": [
+			7.287,
+			8.218,
+			12230.0,
+			399.7,
+			0.004447
+		]
+	},
+	"Ba": {
+		"AZ": [
+			7.899,
+			8.911,
+			12430.0,
+			402.1,
+			0.004511
+		]
+	},
+	"La": {
+		"AZ": [
+			8.041,
+			9.071,
+			12630.0,
+			404.5,
+			0.00454
+		]
+	},
+	"Ce": {
+		"AZ": [
+			7.489,
+			8.444,
+			12830.0,
+			406.9,
+			0.00442
+		]
+	},
+	"Pr": {
+		"AZ": [
+			7.291,
+			8.219,
+			13030.0,
+			409.3,
+			0.004298
+		]
+	},
+	"Nd": {
+		"AZ": [
+			7.098,
+			8.0,
+			13230.0,
+			411.8,
+			0.004182
+		]
+	},
+	"Pm": {
+		"AZ": [
+			6.91,
+			7.786,
+			13430.0,
+			414.2,
+			0.004058
+		]
+	},
+	"Sm": {
+		"AZ": [
+			6.728,
+			7.58,
+			13620.0,
+			416.6,
+			0.003976
+		]
+	},
+	"Eu": {
+		"AZ": [
+			6.551,
+			7.38,
+			13820.0,
+			419.0,
+			0.003877
+		]
+	},
+	"Gd": {
+		"AZ": [
+			6.739,
+			7.592,
+			14020.0,
+			421.4,
+			0.003863
+		]
+	},
+	"Tb": {
+		"AZ": [
+			6.212,
+			6.996,
+			14210.0,
+			423.9,
+			0.003725
+		]
+	},
+	"Dy": {
+		"AZ": [
+			5.517,
+			6.21,
+			14400.0,
+			426.3,
+			0.003632
+		]
+	},
+	"Ho": {
+		"AZ": [
+			5.219,
+			5.874,
+			14600.0,
+			428.7,
+			0.003498
+		]
+	},
+	"Er": {
+		"AZ": [
+			5.071,
+			5.706,
+			14790.0,
+			433.0,
+			0.003405
+		]
+	},
+	"Tm": {
+		"AZ": [
+			4.926,
+			5.542,
+			14980.0,
+			433.5,
+			0.003342
+		]
+	},
+	"Yb": {
+		"AZ": [
+			4.787,
+			5.386,
+			15170.0,
+			435.9,
+			0.003292
+		]
+	},
+	"Lu": {
+		"AZ": [
+			4.893,
+			5.505,
+			15360.0,
+			438.4,
+			0.003243
+		]
+	},
+	"Hf": {
+		"AZ": [
+			5.028,
+			5.657,
+			15550.0,
+			440.8,
+			0.003195
+		]
+	},
+	"Ta": {
+		"AZ": [
+			4.738,
+			5.329,
+			15740.0,
+			443.2,
+			0.003186
+		]
+	},
+	"W": {
+		"AZ": [
+			4.574,
+			5.144,
+			15930.0,
+			442.4,
+			0.003144
+		]
+	},
+	"Re": {
+		"AZ": [
+			5.2,
+			5.851,
+			16120.0,
+			441.6,
+			0.003122
+		]
+	},
+	"Os": {
+		"AZ": [
+			5.07,
+			5.704,
+			16300.0,
+			440.9,
+			0.003082
+		]
+	},
+	"Ir": {
+		"AZ": [
+			4.945,
+			5.563,
+			16490.0,
+			440.1,
+			0.002965
+		]
+	},
+	"Pt": {
+		"AZ": [
+			4.476,
+			5.034,
+			16670.0,
+			439.3,
+			0.002871
+		]
+	},
+	"Au": {
+		"AZ": [
+			4.856,
+			5.46,
+			18320.0,
+			438.5,
+			0.002542
+		]
+	},
+	"Hg": {
+		"AZ": [
+			4.308,
+			4.843,
+			17040.0,
+			487.8,
+			0.002882
+		]
+	},
+	"Tl": {
+		"AZ": [
+			4.723,
+			5.311,
+			17220.0,
+			537.0,
+			0.002913
+		]
+	},
+	"Pb": {
+		"AZ": [
+			5.319,
+			5.982,
+			17400.0,
+			586.3,
+			0.002871
+		]
+	},
+	"Bi": {
+		"AZ": [
+			5.956,
+			6.7,
+			17800.0,
+			677.0,
+			0.00266
+		]
+	},
+	"Po": {
+		"AZ": [
+			6.158,
+			6.928,
+			17770.0,
+			586.3,
+			0.002812
+		]
+	},
+	"At": {
+		"AZ": [
+			6.204,
+			6.979,
+			17950.0,
+			586.3,
+			0.002776
+		]
+	},
+	"Rn": {
+		"AZ": [
+			6.181,
+			6.954,
+			18120.0,
+			586.3,
+			0.002748
+		]
+	},
+	"Fr": {
+		"AZ": [
+			6.949,
+			7.82,
+			18300.0,
+			586.3,
+			0.002737
+		]
+	},
+	"Ra": {
+		"AZ": [
+			7.506,
+			8.448,
+			18480.0,
+			586.3,
+			0.002727
+		]
+	},
+	"Ac": {
+		"AZ": [
+			7.649,
+			8.609,
+			18660.0,
+			586.3,
+			0.002697
+		]
+	},
+	"Th": {
+		"AZ": [
+			7.71,
+			8.679,
+			18830.0,
+			586.3,
+			0.002641
+		]
+	},
+	"Pa": {
+		"AZ": [
+			7.407,
+			8.336,
+			19010.0,
+			586.3,
+			0.002603
+		]
+	},
+	"U": {
+		"AZ": [
+			7.29,
+			8.204,
+			19180.0,
+			586.3,
+			0.002573
+		]
+	}
+}
+
+
+// electronic stopping coefficients from Berger et al. (1991)
+const icru_table = {
+	"H": {
+		"ICRU": [
+			1.254,
+			1.44,
+			242.6,
+			12000.0,
+			0.1159
+		]
+	},
+	"He": {
+		"ICRU": [
+			1.229,
+			1.397,
+			484.5,
+			5873.0,
+			0.05225
+		]
+	},
+	"Li": {
+		"ICRU": [
+			1.411,
+			1.6,
+			725.6,
+			3013.0,
+			0.04578
+		]
+	},
+	"Be": {
+		"ICRU": [
+			2.248,
+			2.59,
+			966.0,
+			153.8,
+			0.03475
+		]
+	},
+	"B": {
+		"ICRU": [
+			2.474,
+			2.815,
+			1206.0,
+			1060.0,
+			0.02855
+		]
+	},
+	"C": {
+		"ICRU": [
+			2.2977695717982596,
+			2.601,
+			1701.0,
+			1279.0,
+			0.01638
+		]
+	},
+	"N": {
+		"ICRU": [
+			2.954,
+			3.35,
+			1683.0,
+			1900.0,
+			0.02513
+		]
+	},
+	"O": {
+		"ICRU": [
+			2.652,
+			3.0,
+			1920.0,
+			2000.0,
+			0.0223
+		]
+	},
+	"F": {
+		"ICRU": [
+			2.085,
+			2.352,
+			2157.0,
+			2634.0,
+			0.01816
+		]
+	},
+	"Ne": {
+		"ICRU": [
+			1.951,
+			2.199,
+			2393.0,
+			2699.0,
+			0.01568
+		]
+	},
+	"Na": {
+		"ICRU": [
+			2.542,
+			2.869,
+			2628.0,
+			1854.0,
+			0.01472
+		]
+	},
+	"Mg": {
+		"ICRU": [
+			3.791,
+			4.293,
+			2862.0,
+			1009.0,
+			0.01397
+		]
+	},
+	"Al": {
+		"ICRU": [
+			4.154,
+			4.739,
+			2766.0,
+			164.5,
+			0.02023
+		]
+	},
+	"Si": {
+		"ICRU": [
+			4.914,
+			5.598,
+			3193.0,
+			232.7,
+			0.01419
+		]
+	},
+	"P": {
+		"ICRU": [
+			3.232,
+			3.647,
+			3561.0,
+			1560.0,
+			0.01267
+		]
+	},
+	"S": {
+		"ICRU": [
+			3.447,
+			3.891,
+			3792.0,
+			1219.0,
+			0.01211
+		]
+	},
+	"Cl": {
+		"ICRU": [
+			5.301,
+			6.008,
+			3969.0,
+			645.1,
+			0.01183
+		]
+	},
+	"Ar": {
+		"ICRU": [
+			5.731,
+			6.5,
+			4253.0,
+			530.0,
+			0.01123
+		]
+	},
+	"K": {
+		"ICRU": [
+			5.152,
+			5.833,
+			4482.0,
+			545.7,
+			0.01129
+		]
+	},
+	"Ca": {
+		"ICRU": [
+			5.521,
+			6.252,
+			4710.0,
+			553.3,
+			0.01112
+		]
+	},
+	"Sc": {
+		"ICRU": [
+			5.201,
+			5.884,
+			4938.0,
+			560.9,
+			0.009995
+		]
+	},
+	"Ti": {
+		"ICRU": [
+			4.858,
+			5.489,
+			5260.0,
+			651.1,
+			0.00893
+		]
+	},
+	"V": {
+		"ICRU": [
+			4.479,
+			5.055,
+			5391.0,
+			952.3,
+			0.009117
+		]
+	},
+	"Cr": {
+		"ICRU": [
+			3.983,
+			4.489,
+			5616.0,
+			1336.0,
+			0.008413
+		]
+	},
+	"Mn": {
+		"ICRU": [
+			3.469,
+			3.907,
+			5725.0,
+			1461.0,
+			0.008829
+		]
+	},
+	"Fe": {
+		"ICRU": [
+			3.519,
+			3.963,
+			6065.0,
+			1243.0,
+			0.007782
+		]
+	},
+	"Co": {
+		"ICRU": [
+			3.14,
+			3.535,
+			6288.0,
+			1372.0,
+			0.007361
+		]
+	},
+	"Ni": {
+		"ICRU": [
+			3.553,
+			4.004,
+			6205.0,
+			555.1,
+			0.008763
+		]
+	},
+	"Cu": {
+		"ICRU": [
+			3.696,
+			4.194,
+			4649.0,
+			81.13,
+			0.02242
+		]
+	},
+	"Zn": {
+		"ICRU": [
+			4.21,
+			4.75,
+			6953.0,
+			295.2,
+			0.006809
+		]
+	},
+	"Ga": {
+		"ICRU": [
+			5.041,
+			5.697,
+			7173.0,
+			202.6,
+			0.006725
+		]
+	},
+	"Ge": {
+		"ICRU": [
+			5.554,
+			6.3,
+			6496.0,
+			110.0,
+			0.009689
+		]
+	},
+	"As": {
+		"ICRU": [
+			5.323,
+			6.012,
+			7611.0,
+			292.5,
+			0.006447
+		]
+	},
+	"Se": {
+		"ICRU": [
+			5.874,
+			6.656,
+			7395.0,
+			117.5,
+			0.007684
+		]
+	},
+	"Br": {
+		"ICRU": [
+			6.658,
+			7.536,
+			7694.0,
+			222.3,
+			0.006509
+		]
+	},
+	"Kr": {
+		"ICRU": [
+			6.413,
+			7.24,
+			11850.0,
+			153.7,
+			0.00288
+		]
+	},
+	"Rb": {
+		"ICRU": [
+			5.694,
+			6.429,
+			8478.0,
+			292.9,
+			0.006087
+		]
+	},
+	"Sr": {
+		"ICRU": [
+			6.339,
+			7.159,
+			8693.0,
+			330.3,
+			0.006003
+		]
+	},
+	"Y": {
+		"ICRU": [
+			6.407,
+			7.234,
+			8907.0,
+			367.8,
+			0.005889
+		]
+	},
+	"Zr": {
+		"ICRU": [
+			6.734,
+			7.603,
+			9120.0,
+			405.2,
+			0.005765
+		]
+	},
+	"Nb": {
+		"ICRU": [
+			6.901,
+			7.791,
+			9333.0,
+			442.7,
+			0.005587
+		]
+	},
+	"Mo": {
+		"ICRU": [
+			6.424,
+			7.248,
+			9545.0,
+			480.2,
+			0.005376
+		]
+	},
+	"Tc": {
+		"ICRU": [
+			6.799,
+			7.671,
+			9756.0,
+			517.6,
+			0.005315
+		]
+	},
+	"Ru": {
+		"ICRU": [
+			6.109,
+			6.887,
+			9966.0,
+			555.1,
+			0.005151
+		]
+	},
+	"Rh": {
+		"ICRU": [
+			5.924,
+			6.677,
+			10180.0,
+			592.5,
+			0.004919
+		]
+	},
+	"Pd": {
+		"ICRU": [
+			5.238,
+			5.9,
+			10380.0,
+			630.0,
+			0.004758
+		]
+	},
+	"Ag": {
+		"ICRU": [
+			5.345,
+			6.038,
+			6790.0,
+			397.8,
+			0.01676
+		]
+	},
+	"Cd": {
+		"ICRU": [
+			5.814,
+			6.554,
+			10800.0,
+			355.5,
+			0.004626
+		]
+	},
+	"In": {
+		"ICRU": [
+			6.229,
+			7.024,
+			11010.0,
+			370.9,
+			0.00454
+		]
+	},
+	"Sn": {
+		"ICRU": [
+			6.409,
+			7.227,
+			11210.0,
+			386.4,
+			0.004474
+		]
+	},
+	"Sb": {
+		"ICRU": [
+			7.5,
+			8.48,
+			8608.0,
+			348.0,
+			0.009074
+		]
+	},
+	"Te": {
+		"ICRU": [
+			6.979,
+			7.871,
+			11620.0,
+			392.4,
+			0.004402
+		]
+	},
+	"I": {
+		"ICRU": [
+			7.725,
+			8.716,
+			11830.0,
+			394.8,
+			0.004376
+		]
+	},
+	"Xe": {
+		"ICRU": [
+			8.337,
+			9.425,
+			10510.0,
+			269.6,
+			0.006206
+		]
+	},
+	"Cs": {
+		"ICRU": [
+			7.287,
+			8.218,
+			12230.0,
+			399.7,
+			0.004447
+		]
+	},
+	"Ba": {
+		"ICRU": [
+			7.899,
+			8.911,
+			12430.0,
+			402.1,
+			0.004511
+		]
+	},
+	"La": {
+		"ICRU": [
+			8.041,
+			9.071,
+			12630.0,
+			404.5,
+			0.00454
+		]
+	},
+	"Ce": {
+		"ICRU": [
+			7.488,
+			8.444,
+			12830.0,
+			406.9,
+			0.00442
+		]
+	},
+	"Pr": {
+		"ICRU": [
+			7.291,
+			8.219,
+			13030.0,
+			409.3,
+			0.004298
+		]
+	},
+	"Nd": {
+		"ICRU": [
+			7.098,
+			8.0,
+			13230.0,
+			411.8,
+			0.004182
+		]
+	},
+	"Pm": {
+		"ICRU": [
+			6.909,
+			7.786,
+			13430.0,
+			414.2,
+			0.004058
+		]
+	},
+	"Sm": {
+		"ICRU": [
+			6.728,
+			7.58,
+			13620.0,
+			416.6,
+			0.003976
+		]
+	},
+	"Eu": {
+		"ICRU": [
+			6.551,
+			7.38,
+			13820.0,
+			419.0,
+			0.003877
+		]
+	},
+	"Gd": {
+		"ICRU": [
+			6.739,
+			7.592,
+			14020.0,
+			421.4,
+			0.003863
+		]
+	},
+	"Tb": {
+		"ICRU": [
+			6.212,
+			6.996,
+			14210.0,
+			423.9,
+			0.003725
+		]
+	},
+	"Dy": {
+		"ICRU": [
+			5.517,
+			6.21,
+			14400.0,
+			426.3,
+			0.003632
+		]
+	},
+	"Ho": {
+		"ICRU": [
+			5.22,
+			5.874,
+			14600.0,
+			428.7,
+			0.003498
+		]
+	},
+	"Er": {
+		"ICRU": [
+			5.071,
+			5.706,
+			14790.0,
+			433.0,
+			0.003405
+		]
+	},
+	"Tm": {
+		"ICRU": [
+			4.926,
+			5.542,
+			14980.0,
+			433.5,
+			0.003342
+		]
+	},
+	"Yb": {
+		"ICRU": [
+			4.788,
+			5.386,
+			15170.0,
+			435.9,
+			0.003292
+		]
+	},
+	"Lu": {
+		"ICRU": [
+			4.893,
+			5.505,
+			15360.0,
+			438.4,
+			0.003243
+		]
+	},
+	"Hf": {
+		"ICRU": [
+			5.028,
+			5.657,
+			15550.0,
+			440.8,
+			0.003195
+		]
+	},
+	"Ta": {
+		"ICRU": [
+			4.738,
+			5.329,
+			15740.0,
+			443.2,
+			0.003186
+		]
+	},
+	"W": {
+		"ICRU": [
+			4.587,
+			5.16,
+			15410.0,
+			415.3,
+			0.003406
+		]
+	},
+	"Re": {
+		"ICRU": [
+			5.201,
+			5.851,
+			16120.0,
+			441.6,
+			0.003122
+		]
+	},
+	"Os": {
+		"ICRU": [
+			5.071,
+			5.704,
+			16300.0,
+			440.9,
+			0.003082
+		]
+	},
+	"Ir": {
+		"ICRU": [
+			4.946,
+			5.563,
+			16490.0,
+			440.1,
+			0.002965
+		]
+	},
+	"Pt": {
+		"ICRU": [
+			4.477,
+			5.034,
+			16670.0,
+			439.3,
+			0.002871
+		]
+	},
+	"Au": {
+		"ICRU": [
+			4.844,
+			5.458,
+			7852.0,
+			975.8,
+			0.02077
+		]
+	},
+	"Hg": {
+		"ICRU": [
+			4.307,
+			4.843,
+			17040.0,
+			487.8,
+			0.002882
+		]
+	},
+	"Tl": {
+		"ICRU": [
+			4.723,
+			5.311,
+			17220.0,
+			537.0,
+			0.002913
+		]
+	},
+	"Pb": {
+		"ICRU": [
+			5.319,
+			5.982,
+			17400.0,
+			586.3,
+			0.002871
+		]
+	},
+	"Bi": {
+		"ICRU": [
+			5.956,
+			6.7,
+			17800.0,
+			677.0,
+			0.00266
+		]
+	},
+	"Po": {
+		"ICRU": [
+			6.158,
+			6.928,
+			17770.0,
+			586.3,
+			0.002812
+		]
+	},
+	"At": {
+		"ICRU": [
+			6.203,
+			6.979,
+			17950.0,
+			586.3,
+			0.002776
+		]
+	},
+	"Rn": {
+		"ICRU": [
+			6.181,
+			6.954,
+			18120.0,
+			586.3,
+			0.002748
+		]
+	},
+	"Fr": {
+		"ICRU": [
+			6.949,
+			7.82,
+			18300.0,
+			586.3,
+			0.002737
+		]
+	},
+	"Ra": {
+		"ICRU": [
+			7.506,
+			8.448,
+			18480.0,
+			586.3,
+			0.002727
+		]
+	},
+	"Ac": {
+		"ICRU": [
+			7.648,
+			8.609,
+			18660.0,
+			586.3,
+			0.002697
+		]
+	},
+	"Th": {
+		"ICRU": [
+			7.711,
+			8.679,
+			18830.0,
+			586.3,
+			0.002641
+		]
+	},
+	"Pa": {
+		"ICRU": [
+			7.407,
+			8.336,
+			19010.0,
+			586.3,
+			0.002603
+		]
+	},
+	"U": {
+		"ICRU": [
+			7.29,
+			8.204,
+			19180.0,
+			586.3,
+			0.002673
+		]
+	}
+}
+
+
+// Electronic stopping coefficients derived from analyzing the IAEA database
+// https://www-nds.iaea.org/stopping/
+// <ost of the values here are derived from version 2021-12, with the exception
+// of O, Si, and Nb, where version 2024-03 was used.
+// Details of the analysis can be found in:
+// R. M. L. McFadden et al., Phys. Rev. Appl. 19, 044018 (2023).
+// R. M. L. McFadden et al., unpublished (2025).
+const iaea_table = {
+	"H": {
+		"IAEA": [
+			1.21941306,
+			1.39705253,
+			316.72610292,
+			3622.08960714,
+			0.03609996
+		]
+	},
+	"He": {
+		"IAEA": []
+	},
+	"Li": {
+		"IAEA": [
+			2.55867734,
+			2.98398784,
+			672.22623329,
+			223.63937274,
+			0.05756479
+		]
+	},
+	"Be": {
+		"IAEA": [
+			2.13846776,
+			2.4302455,
+			1353.80005691,
+			500.78353377,
+			0.01143076
+		]
+	},
+	"B": {
+		"IAEA": [
+			2.92598306,
+			3.3327191,
+			1523.83401267,
+			574.31712932,
+			0.01671298
+		]
+	},
+	"C": {
+		"IAEA": [
+			2.51057212,
+			2.84874359,
+			1325.63086028,
+			2111.57332043,
+			0.03815981
+		]
+	},
+	"N": {
+		"IAEA": [
+			3.03231463,
+			3.44621744,
+			1287.27189959,
+			3445.25706665,
+			0.0690955
+		]
+	},
+	"O": {
+		"IAEA": [
+			2.64525591541112,
+			2.99207340296791,
+			1983.59086293942,
+			1899.40582231425,
+			0.0194714278702055
+		]
+	},
+	"F": {
+		"IAEA": []
+	},
+	"Ne": {
+		"IAEA": []
+	},
+	"Na": {
+		"IAEA": []
+	},
+	"Mg": {
+		"IAEA": [
+			4.3221962,
+			4.95332934,
+			2711.05757349,
+			99.32422512,
+			0.01692829
+		]
+	},
+	"Al": {
+		"IAEA": [
+			4.16266645,
+			4.7394264,
+			3007.21967155,
+			192.15430476,
+			0.01478852
+		]
+	},
+	"Si": {
+		"IAEA": [
+			4.92174725194867,
+			5.61439738985486,
+			2614.54841139624,
+			369.526489722846,
+			0.0253413402253883
+		]
+	},
+	"P": {
+		"IAEA": []
+	},
+	"S": {
+		"IAEA": []
+	},
+	"Cl": {
+		"IAEA": [
+			5.18954121,
+			5.87010049,
+			5726.20198003,
+			338.90592713,
+			0.00527894
+		]
+	},
+	"Ar": {
+		"IAEA": []
+	},
+	"K": {
+		"IAEA": []
+	},
+	"Ca": {
+		"IAEA": [
+			7.3841902,
+			8.41800474,
+			4257.94547049,
+			311.84732092,
+			0.01482602
+		]
+	},
+	"Sc": {
+		"IAEA": [
+			6.2736694,
+			7.11486087,
+			5202.32117316,
+			349.64931132,
+			0.00808596
+		]
+	},
+	"Ti": {
+		"IAEA": [
+			4.89215322,
+			5.5299609,
+			4733.05002706,
+			821.5492998,
+			0.01141794
+		]
+	},
+	"V": {
+		"IAEA": [
+			4.39418898,
+			4.95984106,
+			5216.28902299,
+			873.00768319,
+			0.00982301
+		]
+	},
+	"Cr": {
+		"IAEA": [
+			4.22355616,
+			4.76724205,
+			4805.40719904,
+			1062.25237873,
+			0.01508696
+		]
+	},
+	"Mn": {
+		"IAEA": [
+			3.45870888,
+			3.89580224,
+			5452.18588822,
+			1778.16054656,
+			0.0105738
+		]
+	},
+	"Fe": {
+		"IAEA": [
+			3.69846643,
+			4.16916938,
+			5392.90710239,
+			1040.38447053,
+			0.01152298
+		]
+	},
+	"Co": {
+		"IAEA": [
+			3.55890909,
+			4.00775461,
+			6796.04145497,
+			933.86447935,
+			0.00558368
+		]
+	},
+	"Ni": {
+		"IAEA": [
+			3.42262695,
+			3.8623488,
+			4759.65515188,
+			520.18934465,
+			0.02026669
+		]
+	},
+	"Cu": {
+		"IAEA": [
+			3.54912421,
+			4.02142201,
+			4344.22605325,
+			128.32905834,
+			0.02886218
+		]
+	},
+	"Zn": {
+		"IAEA": [
+			4.31895518,
+			4.91763977,
+			5346.0392556,
+			46.16548699,
+			0.01518164
+		]
+	},
+	"Ga": {
+		"IAEA": [
+			4.11015447,
+			4.63998531,
+			7681.41419449,
+			149.38563152,
+			0.00628772
+		]
+	},
+	"Ge": {
+		"IAEA": [
+			5.80984815,
+			6.60667983,
+			6039.04808738,
+			87.19744473,
+			0.01158192
+		]
+	},
+	"As": {
+		"IAEA": []
+	},
+	"Se": {
+		"IAEA": [
+			5.58734301,
+			6.31119973,
+			8423.01872583,
+			221.61559131,
+			0.00530434
+		]
+	},
+	"Br": {
+		"IAEA": [
+			6.28480648,
+			7.09489448,
+			11732.76411988,
+			150.96205589,
+			0.00281298
+		]
+	},
+	"Kr": {
+		"IAEA": [
+			6.47378266,
+			7.31581518,
+			9199.06183849,
+			216.98680923,
+			0.00437111
+		]
+	},
+	"Rb": {
+		"IAEA": [
+			8.48759187,
+			9.62951209,
+			7271.11124671,
+			272.67996745,
+			0.00818815
+		]
+	},
+	"Sr": {
+		"IAEA": [
+			8.66447838,
+			9.84912713,
+			5979.31960977,
+			334.15705556,
+			0.01184544
+		]
+	},
+	"Y": {
+		"IAEA": [
+			7.54854264,
+			8.54789357,
+			6885.34110669,
+			429.5325211,
+			0.00930644
+		]
+	},
+	"Zr": {
+		"IAEA": [
+			6.24168401,
+			7.04236496,
+			10674.06252597,
+			269.66181445,
+			0.00339805
+		]
+	},
+	"Nb": {
+		"IAEA": [
+			5.83800567770461,
+			6.58179495443619,
+			12601.224783492,
+			206.20626866439,
+			0.00270151372920993
+		]
+	},
+	"Mo": {
+		"IAEA": [
+			5.58867862,
+			6.29983727,
+			9573.1660566,
+			523.57577519,
+			0.00473082
+		]
+	},
+	"Tc": {
+		"IAEA": []
+	},
+	"Ru": {
+		"IAEA": []
+	},
+	"Rh": {
+		"IAEA": []
+	},
+	"Pd": {
+		"IAEA": [
+			4.74762031,
+			5.34871025,
+			8086.17802763,
+			942.05721488,
+			0.00842671
+		]
+	},
+	"Ag": {
+		"IAEA": [
+			5.4205224,
+			6.17824432,
+			4642.1821495,
+			90.75350922,
+			0.06061521
+		]
+	},
+	"Cd": {
+		"IAEA": [
+			4.89128643,
+			5.50754704,
+			11831.77188508,
+			396.06905848,
+			0.00412049
+		]
+	},
+	"In": {
+		"IAEA": [
+			5.98978289,
+			6.7705004,
+			6343.54720062,
+			564.65410792,
+			0.0227052
+		]
+	},
+	"Sn": {
+		"IAEA": [
+			6.73191335,
+			7.61854414,
+			6946.18830598,
+			347.1939131,
+			0.01677246
+		]
+	},
+	"Sb": {
+		"IAEA": [
+			7.92400389,
+			8.99628409,
+			5736.2988109,
+			403.11722206,
+			0.02973016
+		]
+	},
+	"Te": {
+		"IAEA": []
+	},
+	"I": {
+		"IAEA": []
+	},
+	"Xe": {
+		"IAEA": [
+			8.968264,
+			10.16224223,
+			8543.2730486,
+			283.90067433,
+			0.01019984
+		]
+	},
+	"Cs": {
+		"IAEA": []
+	},
+	"Ba": {
+		"IAEA": []
+	},
+	"La": {
+		"IAEA": [
+			8.16949326,
+			9.21144395,
+			13933.96869212,
+			429.99442382,
+			0.0034744
+		]
+	},
+	"Ce": {
+		"IAEA": []
+	},
+	"Pr": {
+		"IAEA": []
+	},
+	"Nd": {
+		"IAEA": [
+			8.60801371,
+			10.26060598,
+			6798.65217629,
+			7.06731816,
+			0.02713704
+		]
+	},
+	"Pm": {
+		"IAEA": []
+	},
+	"Sm": {
+		"IAEA": []
+	},
+	"Eu": {
+		"IAEA": []
+	},
+	"Gd": {
+		"IAEA": [
+			8.38379061,
+			9.50012183,
+			10804.38767518,
+			110.71066098,
+			0.00761735
+		]
+	},
+	"Tb": {
+		"IAEA": [
+			8.69907359,
+			10.36476708,
+			5985.09307671,
+			7.76175759,
+			0.04237031
+		]
+	},
+	"Dy": {
+		"IAEA": [
+			6.69350026,
+			7.81543484,
+			5289.65107666,
+			12.11560717,
+			0.05746489
+		]
+	},
+	"Ho": {
+		"IAEA": []
+	},
+	"Er": {
+		"IAEA": [
+			4.31497049,
+			4.85346547,
+			12995.54504003,
+			691.00380321,
+			0.00499022
+		]
+	},
+	"Tm": {
+		"IAEA": []
+	},
+	"Yb": {
+		"IAEA": [
+			6.38304258,
+			7.21491284,
+			12327.74719685,
+			82.30064162,
+			0.00516845
+		]
+	},
+	"Lu": {
+		"IAEA": [
+			7.00205766,
+			8.09268611,
+			4589.67801229,
+			31.06321362,
+			0.11142124
+		]
+	},
+	"Hf": {
+		"IAEA": [
+			5.32763157,
+			6.00140558,
+			13853.49562768,
+			206.93150053,
+			0.00411522
+		]
+	},
+	"Ta": {
+		"IAEA": [
+			5.15280708,
+			5.8054531,
+			12417.25115167,
+			231.48549646,
+			0.00530723
+		]
+	},
+	"W": {
+		"IAEA": [
+			4.81261962,
+			5.41579909,
+			15245.84079976,
+			286.09077182,
+			0.00344862
+		]
+	},
+	"Re": {
+		"IAEA": [
+			4.26021967,
+			4.80273372,
+			3191.05524918,
+			76051.48730893,
+			3.161e-05
+		]
+	},
+	"Os": {
+		"IAEA": []
+	},
+	"Ir": {
+		"IAEA": [
+			4.16543126,
+			4.68849191,
+			6887.94139926,
+			4263.90641919,
+			4e-08
+		]
+	},
+	"Pt": {
+		"IAEA": [
+			4.62228847,
+			5.20033612,
+			16308.49878855,
+			266.02263275,
+			0.0030956
+		]
+	},
+	"Au": {
+		"IAEA": [
+			4.84253074,
+			5.44769072,
+			15602.21662947,
+			412.25485588,
+			0.00331383
+		]
+	},
+	"Hg": {
+		"IAEA": []
+	},
+	"Tl": {
+		"IAEA": []
+	},
+	"Pb": {
+		"IAEA": [
+			9.42473604,
+			17.46235676,
+			11946.86905435,
+			1e-08,
+			0.00652912
+		]
+	},
+	"Bi": {
+		"IAEA": [
+			10.25823796,
+			12.26670424,
+			7765.05387481,
+			7.37274504,
+			0.0231005
+		]
+	},
+	"Po": {
+		"IAEA": []
+	},
+	"At": {
+		"IAEA": []
+	},
+	"Rn": {
+		"IAEA": []
+	},
+	"Fr": {
+		"IAEA": []
+	},
+	"Ra": {
+		"IAEA": []
+	},
+	"Ac": {
+		"IAEA": []
+	},
+	"Th": {
+		"IAEA": []
+	},
+	"Pa": {
+		"IAEA": []
+	},
+	"U": {
+		"IAEA": []
+	},
+	"": {
+		"IAEA": []
+	}
+}
+
+
+// list of JS objects containing all projectile/target element data
+const dataObjects = [
+    elements,
+    projectiles,
+    az_table,
+    icru_table,
+    iaea_table
+];
+
+// empty "main" object - to be filled with *all* projectile/target data
+const elemPars = {}
+
+// loop over each JS object...
+for (const d of dataObjects) {
+    // ...and deep-merge them to the "main" object
+    mergeDeep(elemPars, d);
+};
+
+// Extra densities (i.e., for chemical compounds)
+const rhos = {
+	"NbN": 8.47,
+	"Bi2Se3": 7.51,
+	"La2CuO4": 7.08,
+	"La1.84Sr0.16CuO4": 6.94,
+	"N2": 1.145,
+	"ZnO": 5.61,
+	"ZnSe": 5.26,
+	"ZnS": 4.09,
+	"ZrO": 6.0,
+	"Gd3Ga5O12": 7.08,
+	"MgAl2O4": 3.6,
+	"NdGaO3": 7.57,
+	"YAlO3": 4.88,
+	"Y3Al5O12": 4.55,
+	"LiF": 2.6,
+	"CaF2": 3.18,
+	"BaFe": 4.83,
+	"MgF2": 3.18,
+	"SiO2": 2.65,
+	"TiO2": 4.26,
+	"KTaO3": 6.967,
+	"LaAlO3": 6.7,
+	"Al2O3": 3.98,
+	"SrTiO3": 5.12,
+	"SrLaGaO4": 6.389,
+	"SrLaAlO4": 5.924,
+	"NbSe2": 6.3,
+	"MgO": 3.58,
+	"YBa2Cu3O7": 6.54,
+	"GaAs": 5.32,
+	"C60": 1.65
 }
 
-// This file contains function that are generic Javascript for TrimSP
 
 function parse_formula (mf) {
     // This function takes a chemical formula and returns
@@ -861,25 +3030,36 @@ function parse_formula (mf) {
     return mol;
 }
 
-function StoppingCoefficients(Element,flag)
+function StoppingCoefficients(Element, flag)
 {
-    // flag = 1 prefer ICRU otherwise prefer IAEA
+    // Select which tabulation to use for the Varelas-Biersack parameterization
+    // of electronic stopping cross sections for proton-like projectiles
+    // implanted in elemental targets.
 
-    // Updated Anderson-Ziegler table values for hydrogen projectiles using
-    // up-to-date stopping data from the IAEA database (https://www-nds.iaea.org/stopping/).
-    // For further details on their determination, see e.g.:
-    // R. M. L. McFadden at al., arXiv:2212.11081 [cond-mat.supr-con]
-    // https://doi.org/10.48550/arXiv.2212.11081
+    // flag = 1: use coefficients from Anderson & Ziegler (1977).
+    if (flag == 1) {
+        return elemPars[Element].AZ;
+    }
 
-    if (flag || elemPars[Element].IAEA.length < 5) {
-	// Using stopping coefficients derived from ICRU Report 49
-	//return StoppingCoefficientsICRU[Element];
-	return elemPars[Element].ICRU;
+    // flag = 2: use coefficients from ICRU Report 49 (1973).
+    if (flag == 2) {
+        return elemPars[Element].ICRU;
+    }
+
+    // flag = 3: use coefficients from McFadden et al. (2023) and McFadden et al. (unpublished).
+    //
+    // NOTE: these values were derived from up-to-date stopping data found inthe
+    // IAEA's database of electronic stopping cross sections
+    // (https://www-nds.iaea.org/stopping/).
+    // For further details on their determination, see, e.g.:
+    // Appendix A in McFadden at al., Phys. Rev. Applied 19, 044018 (2023).
+    // https://doi.org/10.1103/PhysRevApplied.19.044018
+    if (flag == 3 && elemPars[Element].IAEA.length == 5) {
+        return elemPars[Element].IAEA;
+    // in the event that updated coefficients are unavailable for given element
+    // fall back to using values from ICRU Report 49
     } else {
-	// Using stopping coefficients derived from data in the IAEA database;
-	// however, if they are unavailable, return those from ICRU Report 49
-	//return (Element in StoppingCoefficientsIAEA) ? StoppingCoefficientsIAEA[Element] : StoppingCoefficientsICRU[Element];
-	return elemPars[Element].IAEA;
+        return elemPars[Element].ICRU;
     }
 }
 
@@ -1112,8 +3292,8 @@ function prep_cfg(toggle) {
 	All[key]= document.getElementById(key).value;
     }
 
-    // Check ICRU flag, if checked use it
-    All["flagICRU"] = document.getElementById("flagICRU").checked;
+    // Get the stopping power coefficient (SPC) flag
+    All["flagSPC"] = document.getElementById("flagSPC").value;
     
     // Construct full content of cfg file
     TrimSPcfg = FilesSec + LayersSec + ProjSec + ScanSec;
@@ -1248,7 +3428,7 @@ function CreateInpFile() {
 	newLayer[0] += Comp + " " + d + " " + rho + " 1 " + nEl;
 	for (var j=0;j<Els.length;j++) {
 	    let El = Els[j];
-	    let ElSTs = StoppingCoefficients(El,All["flagICRU"]);
+	    let ElSTs = StoppingCoefficients(El, All["flagSPC"]);
 	   
 	    // Next 11 lines depend on number of elements
 	    newLayer[1]  +=  elemPars[El].Z + " " ;