Creation

script/Alignment/Gun_solenoid_alignment.py

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+#Tool to align the laser on the cathode.
+# S. Bettoni, A. Gobbo, D. Voulot
+#10/05/2016
+
+
+#Procedure:
+    #I switch off all the magnets between the gun solenoid and the screen or BPM used for the measurement
+    #I change the current of the gun soleoid
+    #I look at the centroid position (BPM or screen) downstream of the gun.
+    
+#TO BE PUT THE SIGNAL I-READ IN THE DEVICE DEFINITION GUN SOLENOID
+
+#caput("shutter:state", Closed)
+
+start_I = 0.001 #20
+end_I = 0.005 #150
+step_I = 0.0001 #1
+
+#Scan using the screen
+r = lscan(gun_sol_current, [center_x, center_y], start_I, end_I, step_I, latency = 0.2)
+#Scan using the BPM
+#r = lscan(gun_sol_current, bpm_1_down_gun, start_I, end_I, step_I, latency = 0.2)
+
+#I take the result of the scan and I do the plots
+x = r.getReadable(0)
+y = r.getReadable(1)
+plot(y, xdata=x, title = "CM")
+
+
+
+
+#I save the entry in the logbook
+
+ 

script/Alignment/Laser_gun_alignment.py

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+#Tool to align the laser on the cathode.
+# S. Bettoni, A. Gobbo, D. Voulot
+#10/05/2016
+
+from operator import sub
+
+
+#Procedure:
+    #I switch off all the magnets between the gun solenoid and the screen or BPM used for the measurement
+    #I change the current of the gun soleoid
+    #I look at the centroid position (BPM or screen) downstream of the gun.
+    
+#TO BE PUT THE SIGNAL I-READ IN THE DEVICE DEFINITION GUN SOLENOID
+
+#caput("shutter:state", Closed)
+
+start_I = 0.001 #20
+end_I = 0.005 #150
+step_I = 0.001 #1
+
+#Scan using the screen
+r = lscan(gun_sol_current, [center_x, center_y], start_I, end_I, step_I, latency = 0.2)
+#Scan using the BPM
+#r = lscan(gun_sol_current, bpm_1_down_gun, start_I, end_I, step_I, latency = 0.2)
+
+#I take the result of the scan and I do the plots
+x = r.getReadable(0)
+y = r.getReadable(1)
+p = plot(y, xdata=x, title = "CM")
+yerr = 0.1
+xerr = 0.5
+
+
+#I save the entry in the logbook
+#elog(title, message, attachments = [], author = None, category = "Info", domain = "", logbook = "SwissFEL commissioning data", encoding=1):
+#elog("Test Simona", "message", author = "Simona", get_plot_snapshots(), logbook = "SwissFEL commissioning data", encoding=1)
+ 

script/Alignment/test_Simona.py

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+
+
+
+import numpy as np
+import matplotlib.pyplot as plt
+
+# example data
+x = np.arange(0.5, 5.5, 0.5)
+y = np.exp(-x)
+xerr = 0.1
+yerr = 0.2
+ls = 'dotted'
+
+fig = plt.figure()
+ax = fig.add_subplot(1, 1, 1)
+
+# standard error bars
+plt.errorbar(x, y, xerr=xerr, yerr=yerr, ls=ls, color='blue')
+
+# including upper limits
+uplims = np.zeros(x.shape)
+uplims[[1, 5, 9]] = True
+plt.errorbar(x, y + 0.5, xerr=xerr, yerr=yerr, uplims=uplims, ls=ls,
+             color='green')
+
+# including lower limits
+lolims = np.zeros(x.shape)
+lolims[[2, 4, 8]] = True
+plt.errorbar(x, y + 1.0, xerr=xerr, yerr=yerr, lolims=lolims, ls=ls,
+             color='red')
+
+# including upper and lower limits
+plt.errorbar(x, y + 1.5, marker='o', ms=8, xerr=xerr, yerr=yerr,
+             lolims=lolims, uplims=uplims, ls=ls, color='magenta')
+
+# including xlower and xupper limits
+xerr = 0.2
+yerr = np.zeros(x.shape) + 0.2
+yerr[[3, 6]] = 0.3
+xlolims = lolims
+xuplims = uplims
+lolims = np.zeros(x.shape)
+uplims = np.zeros(x.shape)
+lolims[[6]] = True
+uplims[[3]] = True
+plt.errorbar(x, y + 2.1, marker='o', ms=8, xerr=xerr, yerr=yerr,
+             xlolims=xlolims, xuplims=xuplims, uplims=uplims, lolims=lolims,
+             ls='none', mec='blue', capsize=0, color='cyan')
+
+ax.set_xlim((0, 5.5))
+ax.set_title('Errorbar upper and lower limits')
+plt.show()