Startup

script/ManipulatorYZScanAtAngle.py

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+"""
+manipulator grid scan at non-normal theta angle
+
+set manipulator scan parameters below.
+set analyser parameters separately!
+move manipulator to center position before start!
+
+"""
+
+import math
+
+# adjust the following parameters
+DISTANCE_XY = 1.0
+DISTANCE_Z = 1.0
+ANGLE = -30.0 # move the sample perpendicularly across the beam
+#ANGLE = +60.0 # move the sample along the beam
+POINTS_XY = 3
+POINTS_Z = 3
+
+SENSORS = (Counts, Scienta.spectrum, SampleCurrent, RefCurrent, MachineCurrent, EnergyDistribution, AngleDistribution)
+#SENSORS = (Counts, Scienta.dataMatrix, SampleCurrent, RefCurrent, MachineCurrent, EnergyDistribution, AngleDistribution)
+LATENCY = 1.0
+ENDSCAN = True
+
+# do not edit below
+DISTANCE_X = DISTANCE_XY * math.cos(math.radians(ANGLE))
+DISTANCE_Y = DISTANCE_XY * math.sin(math.radians(ANGLE))
+
+RELATIVE = True
+TOTAL_POINTS = POINTS_XY * POINTS_Z
+zv = [(int(i / POINTS_Z) - (POINTS_Z - 1) / 2.) * DISTANCE_Z / 2. for i in range(TOTAL_POINTS)]
+xyv = [((i % POINTS_Z) - (POINTS_XY - 1) / 2.) * DISTANCE_XY / 2. for i in range(TOTAL_POINTS)]
+xv = [xy * math.cos(math.radians(ANGLE)) for xy in xyv]
+yv = [xy * math.sin(math.radians(ANGLE)) for xy in xyv]
+
+VECTOR = [[xv[i], yv[i], zv[i]] for i in range(TOTAL_POINTS)]
+
+MOTORS = (ManipulatorX, ManipulatorY, ManipulatorZ)
+
+adjust_sensors()
+set_adc_averaging()
+
+try:
+    vscan(MOTORS, SENSORS, VECTOR, line=False, latency=LATENCY, relative=RELATIVE, before_read=before_readout, after_read=after_readout)
+finally:
+    if ENDSCAN:
+        after_scan()
+

script/XASFly.py

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+"""
+XAS on-the-fly scan
+
+SCRIPT NOT RUNNING!
+
+TO DO: probably need to wrap the mono in a ch.psi.pshell.device.Motor 
+       or ch.psi.pshell.device.MotorGroupBase
+"""
+
+# scan parameters
+
+START_ENERGY = 400.0
+END_ENERGY = 410.0
+# total scan time in seconds
+SCAN_TIME = 60.0
+# dwell time (per step) in seconds
+DWELL = 0.1
+# True = close shutter and turn off detectors at end, False = leave beam and detectors on
+ENDSCAN = False
+
+# --- do not edit below ---
+
+mm = ch.psi.pshell.device.Motor("X03DA-PGM:MI")
+gm = ch.psi.pshell.device.Motor("X03DA-PGM:GR")
+    
+POSITIONERS = (MonoBetaMotor, MonoThetaMotor)
+SENSORS = (MonoEnergy, MonoCff, MonoBeta, MonoTheta, SampleCurrent, RefCurrent, MachineCurrent)
+STARTPOS = (beta1, theta1)
+ENDPOS = (beta2, theta2)
+
+caput('X03DA-PGM:energy', END_ENERGY)
+time.sleep(0.05)
+beta1 = caget('X03DA-PGM:beta')
+theta1 = caget('X03DA-PGM:theta')
+print "end:   energy = {en}, beta = {be}, theta = {th}".format(en=END_ENERGY, be=beta1, th=theta1)
+
+caput('X03DA-PGM:energy', START_ENERGY)
+time.sleep(0.05)
+beta2 = caget('X03DA-PGM:beta')
+theta2 = caget('X03DA-PGM:theta')
+print "start: energy = {en}, beta = {be}, theta = {th}".format(en=END_ENERGY, be=beta1, th=theta1)
+Eph.write(START_ENERGY)
+
+LATENCY = 0.
+
+adjust_sensors()
+set_adc_averaging()
+
+try:
+    prepare_keithleys(DWELL)
+    cscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, NSTEPS-1, time=scan_time, before_read=before_readout, after_read=after_readout)
+finally:
+    if ENDSCAN:
+        after_scan()