125 lines
3.2 KiB
Python
Executable File
125 lines
3.2 KiB
Python
Executable File
# Tool to align the solenoid on the gun.
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# S. Bettoni, A. Gobbo, D. Voulot
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# 06/06/2016
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#Code ok with the GUI
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# Procedure:
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# switch off all the magnets between the gun solenoid and the screen or BPM used for the measurement
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# change the current of the gun soleoid
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# look at the centroid position (BPM or screen) downstream of the gun.
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import datetime
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from camtool import CamTool
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#run("camtool")
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if get_context().source == CommandSource.ui:
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I1 = 95.0
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I2 = 100.0
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dI = 1.0
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settling_time = 0.1
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plot_image = False
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number_images = 1
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use_background = True
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multiple_background = True
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number_backgrounds = 5
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zero_solenoids=False
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do_elog = False
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centroid_excursion_plot = True
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else:
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centroid_excursion_plot = False
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LASER_SETTLING_TIME = 0.1
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print "Parameters: ", I1, I2, dI, settling_time, plot_image, number_images, use_background, multiple_background, number_backgrounds
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plot_name = datetime.datetime.fromtimestamp(time.time()).strftime('%H%M%S')
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add_device(CamTool("camtool") , True)
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camtool.enableBackground (use_background)
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if use_background and not multiple_background:
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laser_off()
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camtool.captureBackground(number_backgrounds)
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multiple_background = multiple_background and use_background
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com_x =camtool.com_x
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com_y = camtool.com_y
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def ccr(mag):
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n = 1
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while n > 0:
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sleep(0.5)
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n = caget(mag + ":I-COMP")
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def laser_on():
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print "Laser On"
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#caput("SIN-TIMAST-TMA:Beam-Las-Delay-Sel", 0)
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time.sleep(LASER_SETTLING_TIME)
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def laser_off():
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print "Laser Off"
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#caput("SIN-TIMAST-TMA:Beam-Las-Delay-Sel", 1)
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time.sleep(LASER_SETTLING_TIME)
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# Switch off magnets
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mag = [ "SINEG01-MCRX120","SINEG01-MCRY120",
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"SINEG01-MQUA140",
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"SINEG01-MQUA150",
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"SINEG01-MCRX160","SINEG01-MCRY160",
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"SINEG01-MCRX180","SINEG01-MCRY180",
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"SINEG01-MCRX200","SINEG01-MCRY200",
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"SINEG01-MCRX220","SINEG01-MCRY220",
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"SINEG01-MQUA310",
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"SINEG01-MQUA320" ]
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if zero_solenoids:
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for m in mag:
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caput(m + ":I-SET", 0.0)
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for m in mag:
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ccr(m)
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# add here gun phase setting see wiki page
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def br():
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if multiple_background:
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camtool.captureBackground(number_backgrounds)
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laser_on()
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camtool.update()
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def ar():
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if multiple_background:
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laser_off()
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r = None
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if not multiple_background:
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laser_on()
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try:
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sensors = [com_x, com_y, camtool.image] if plot_image else [com_x, com_y]
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r = lscan(gun_solenoid, sensors , I1, I2, dI, settling_time, before_read = br, after_read = ar)
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finally:
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laser_off()
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# take the result of the scan and generate convex hull plot
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if centroid_excursion_plot:
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(hx,hy)=add_convex_hull_plot ("Centroid excursion", r.getReadable(0),r.getReadable(1), plot_name)
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else:
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(hx,hy)= convex_hull(x=r.getReadable(0), y=r.getReadable(1))
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hx.append(hx[0]); hy.append(hy[0])
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# save the entry in the logbook
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if do_elog:
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msg = str(r)
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msg = msg + "\nFile: " + get_context().path
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msg = msg + "\n\n" + r.print()
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elog("Gun solenoid current scan", msg , get_plot_snapshots())
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set_return([r, hx,hy])
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