Version 1.14

script/Undulators/K-calc_AR.py

@@ -1,5 +1,5 @@
-Eph1 = 11.312  # actual photon energy
-Eph2 = 12.00  # desired photon energy
+Eph1 = 11.65  # actual photon energy
+Eph2 =  12.05  # desired photon energy
 
 do_elog = True
 
@@ -11,9 +11,6 @@ for und in undlist:
   K1[und] = K
   K2[und] = ((Eph1 / Eph2 * (K**2 + 2) - 2))**0.5
 print K1,K2
-#if Eph2 > Eph1 :
-#  for und in undlist: caput(und + "-UIND030:K_SET",  1.1)
-#  time.sleep(40.0)
 for und in undlist: caput(und + "-UIND030:K_SET",  K2[und])
 
 #Elog entry
@@ -21,5 +18,4 @@ if do_elog:
   title = "Wavelength change"
   log_msg =           "Old photon energy:  %0.2f"   % Eph1            + " kev\n"
   log_msg = log_msg + "New photon energy:  %0.2f"   % Eph2            + " keV\n"
-  attachments = None
-  elog(title, log_msg, attachments)
+  elog(title, log_msg)

script/Undulators/K-calc_AT.py

@@ -0,0 +1,38 @@
+undlist = ("SATUN17","SATUN18","SATUN19","SATUN20","SATUN21","SATUN22")
+
+### getting current photon energy:
+Eph1 = caget(undlist[0] + "-UIND030:FELPHOTENE")
+#Eph1 = 0.530  # actual photon energy in keV
+print("Photon energy at start (at ", undlist[0],") : ", round(Eph1,4))
+
+### give desired photon energy via relative or absolute method.
+### please comment the other out!
+
+### relative change in photon energy:
+#step = -0.002 # desired step to scale in keV
+#Eph2 = Eph1 + step
+
+### absolute change in photon energy:
+Eph2 = 0.540  # desired photon energy in keV
+
+print("Photon energy at end: ", round(Eph2,4))
+
+do_elog = True
+
+
+### actual code:
+K1, K2 = {}, {}
+for und in undlist:
+  K = caget(und + "-UIND030:K_SET")
+  K1[und] = K
+  K2[und] = ((Eph1 / Eph2 * (K**2 + 2) - 2))**0.5
+print(K1)
+print(K2)
+for und in undlist: caput(und + "-UIND030:K_SET",  K2[und])
+
+### create Elog entry
+if do_elog:
+  title = "Athos wavelength change"
+  log_msg =           "Old photon energy:  %0.4f"   % Eph1            + " kev\n"
+  log_msg = log_msg + "New photon energy:  %0.4f"   % Eph2            + " keV\n"
+  elog(title, log_msg)