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# -*- coding: utf-8 -*-
"""This module describes the beamline CLÆSS to be imported by
``traceBalderBL.py`` script."""
__author__ = "Konstantin Klementiev", "Roman Chernikov"
__date__ = "07 Jan 2016"
import math
import numpy as np
import os, sys; sys.path.append(os.path.join('..', '..', '..')) # analysis:ignore
import xrt.backends.raycing as raycing
import xrt.backends.raycing.sources as rs
import xrt.backends.raycing.apertures as ra
import xrt.backends.raycing.oes as roe
import xrt.backends.raycing.run as rr
import xrt.backends.raycing.materials as rm
import xrt.backends.raycing.screens as rsc
showIn3D = False
stripeSi = rm.Material('Si', rho=2.33)
stripeSiO2 = rm.Material(('Si', 'O'), quantities=(1, 2), rho=2.2)
stripeIr = rm.Material('Ir', rho=22.42)
mSi = rm.Material('Si', rho=2.33)
mW = rm.Material('W', rho=19.3)
mL = rm.Multilayer(mSi, 27, mW, 18, 40, mSi)
def build_beamline(nrays=1e4, hkl=(1, 1, 1), stripe='Si',
eMinRays=2400, eMaxRays=45000):
filterDiamond = rm.Material('C', rho=3.52, kind='plate')
if stripe.startswith('S'):
materialVCM = stripeSi
materialVFM = stripeSiO2
elif stripe.startswith('I'):
materialVCM = stripeIr
materialVFM = stripeIr
else:
raise ('Don''t know the mirror material')
height = 0
beamLine = raycing.BeamLine(azimuth=0, height=height)
wigglerToStraightSection = 0
xWiggler = wigglerToStraightSection * beamLine.sinAzimuth
yWiggler = wigglerToStraightSection * beamLine.cosAzimuth
# rs.WigglerWS(
# beamLine, name='SoleilW50', center=(xWiggler, yWiggler, height),
# nrays=nrays, period=50., K=8.446, n=39, eE=3., eI=0.5,
# eSigmaX=48.66, eSigmaZ=6.197, eEpsilonX=0.263, eEpsilonZ=0.008,
# eMin=50, eMax=60050, eMinRays=eMinRays, eMaxRays=eMaxRays, eN=2000,
# xPrimeMax=0.22, zPrimeMax=0.06, nx=40, nz=10)
rs.Wiggler(
beamLine, name='SoleilW50', center=(xWiggler, yWiggler, height),
nrays=nrays, period=50., K=8.446, n=39, eE=3., eI=0.5,
eSigmaX=48.66, eSigmaZ=6.197, eEpsilonX=0.263, eEpsilonZ=0.008,
eMin=eMinRays, eMax=eMaxRays, xPrimeMax=0.22, zPrimeMax=0.06)
beamLine.fsm0 = rsc.Screen(beamLine, 'FSM0', (0, 15000, height))
beamLine.feFixedMask = ra.RectangularAperture(
beamLine, 'FEFixedMask', (0, 15750, height),
('left', 'right', 'bottom', 'top'), [-3.15, 3.15, -0.7875, 0.7875])
beamLine.fsmFE = rsc.Screen(beamLine, 'FSM-FE', (0, 16000, height))
beamLine.filter1 = roe.Plate(
beamLine, 'Filter1', (0, 23620, height),
pitch=math.pi/2, limPhysX=(-9., 9.), limPhysY=(-4., 4.),
surface='diamond 60 $\mu$m', material=filterDiamond, t=0.06,
alarmLevel=0.)
if stripe.startswith('I'):
beamLine.filter2 = roe.Plate(
beamLine, 'Filter2', (0, 23720, height),
pitch=math.pi/2, limPhysX=(-9., 9.), limPhysY=(-4., 4.),
surface='diamond 0.4 mm', material=filterDiamond, t=0.4,
alarmLevel=0.)
beamLine.vcm = roe.SimpleVCM(
beamLine, 'VCM', [0, 25290, height],
surface=('Si',), material=(materialVCM,),
limPhysX=(-15., 15.), limPhysY=(-680., 680.), limOptX=(-6, 6),
limOptY=(-670., 670.), R=5.0e6, pitch=2e-3, alarmLevel=0.)
beamLine.fsmVCM = rsc.Screen(beamLine, 'FSM-VCM', (0, 26300, height))
beamLine.dmm = roe.DCM(
beamLine, 'DMM', [0, 27060, height], surface=('mL1',),
material=(mL,), material2=(mL,),
limPhysX=(-12, 12), limPhysY=(-150, 150),
cryst2perpTransl=20, cryst2longTransl=100,
limPhysX2=(-12, 12), limPhysY2=(-200, 200),
targetOpenCL='auto',
# targetOpenCL='CPU',
alarmLevel=0.05)
beamLine.BSBlock = ra.RectangularAperture(
beamLine, 'BSBlock', (0, 29100, height), ('bottom',),
(22,), alarmLevel=0.)
beamLine.slitAfterDCM = ra.RectangularAperture(
beamLine, 'SlitAfterDCM', (0, 29200, height),
('left', 'right', 'bottom', 'top'), [-7, 7, -2, 2], alarmLevel=0.5)
beamLine.fsmDCM = rsc.Screen(beamLine, 'FSM-DCM', (0, 29400, height))
beamLine.vfm = roe.SimpleVFM(
beamLine, 'VFM', [0, 30575, height],
surface=('SiO2',), material=(materialVFM,),
limPhysX=(-20., 20.), limPhysY=(-700., 700.),
limOptX=(-10, 10), limOptY=(-700, 700),
positionRoll=math.pi, R=5.0e6, r=40.77, alarmLevel=0.2)
beamLine.slitAfterVFM = ra.RectangularAperture(
beamLine, 'SlitAfterVFM', (0, 31720, height),
('left', 'right', 'bottom', 'top'), [-7, 7, -2, 2], alarmLevel=0.5)
beamLine.fsmVFM = rsc.Screen(beamLine, 'FSM-VFM', (0, 32000, height))
beamLine.ohPS = ra.RectangularAperture(
beamLine, 'OH-PS', (0, 32070, height),
('left', 'right', 'bottom', 'top'), (-20, 20, 25, 55), alarmLevel=0.2)
beamLine.slitEH = ra.RectangularAperture(
beamLine, 'slitEH', (0, 43000, height),
('left', 'right', 'bottom', 'top'), [-20, 20, -7, 7], alarmLevel=0.5)
beamLine.fsmSample = rsc.Screen(
beamLine, 'FSM-Sample', (0, 45863, height))
return beamLine
def run_process(beamLine, shineOnly1stSource=False):
for i in range(len(beamLine.sources)):
curSource = beamLine.sources[i].shine()
if i == 0:
beamSource = curSource
else:
beamSource.concatenate(curSource)
if shineOnly1stSource:
break
beamFSM0 = beamLine.fsm0.expose(beamSource)
beamLine.feFixedMask.propagate(beamSource)
beamFSMFE = beamLine.fsmFE.expose(beamSource)
beamFilter1global, beamFilter1local1, beamFilter1local2 = \
beamLine.filter1.double_refract(beamSource)
if hasattr(beamLine, 'filter2'):
beamFilter2global, beamFilter2local1, beamFilter2local2 = \
beamLine.filter2.double_refract(beamFilter1global)
beamFurtherDown = beamFilter2global
else:
beamFurtherDown = beamFilter1global
# beamFurtherDown = beamSource
beamVCMglobal, beamVCMlocal = beamLine.vcm.reflect(beamFurtherDown)
beamFSMVCM = beamLine.fsmVCM.expose(beamVCMglobal)
beamDCMglobal, beamDCMlocal1, beamDCMlocal2 = \
beamLine.dmm.double_reflect(beamVCMglobal)
# beamBSBlocklocal = beamLine.BSBlock.propagate(beamDCMglobal)
# beamSlitAfterDCMlocal = beamLine.slitAfterDCM.propagate(beamDCMglobal)
beamFSMDCM = beamLine.fsmDCM.expose(beamDCMglobal)
#
# beamVFMglobal, beamVFMlocal = beamLine.vfm.reflect(beamDCMglobal)
# beamSlitAfterVFMlocal = beamLine.slitAfterVFM.propagate(beamVFMglobal)
# beamFSMVFM = beamLine.fsmVFM.expose(beamVFMglobal)
# beamPSLocal = beamLine.ohPS.propagate(beamVFMglobal)
#
# beamSlitEHLocal = beamLine.slitEH.propagate(beamVFMglobal)
# beamFSMSample = beamLine.fsmSample.expose(beamVFMglobal)
# 'beamFilter2global': beamFilter2global,
# 'beamFilter2local1': beamFilter2local1,
# 'beamFilter2local2': beamFilter2local2,
outDict = {'beamSource': beamSource,
'beamFSM0': beamFSM0,
'beamFSMFE': beamFSMFE,
'beamFilter1global': beamFilter1global,
'beamFilter1local1': beamFilter1local1,
'beamFilter1local2': beamFilter1local2,
'beamVCMglobal': beamVCMglobal, 'beamVCMlocal': beamVCMlocal,
'beamFSMVCM': beamFSMVCM,
'beamDCMglobal': beamDCMglobal,
'beamDCMlocal1': beamDCMlocal1, 'beamDCMlocal2': beamDCMlocal2,
'beamFSMDCM': beamFSMDCM}
# 'beamBSBlocklocal': beamBSBlocklocal,
# 'beamSlitAfterDCMlocal': beamSlitAfterDCMlocal,
# 'beamFSMDCM': beamFSMDCM,
# 'beamVFMglobal': beamVFMglobal, 'beamVFMlocal': beamVFMlocal,
# 'beamSlitAfterVFMlocal': beamSlitAfterVFMlocal,
# 'beamFSMVFM': beamFSMVFM,
# 'beamPSLocal': beamPSLocal,
# 'beamSlitEHLocal': beamSlitEHLocal,
# 'beamFSMSample': beamFSMSample
# }
if hasattr(beamLine, 'filter2'):
outDict['beamFilter2global'] = beamFilter2global
outDict['beamFilter2local1'] = beamFilter2local1
outDict['beamFilter2local2'] = beamFilter2local2
beamLine.beams = outDict
if showIn3D:
beamLine.prepare_flow()
return outDict
rr.run_process = run_process
aceptanceH = 4e-4
aceptanceV = 1e-4
def align_beamline(beamLine, pitch=None, bragg=None, energy=9000.,
fixedExit=None, heightVFM=25, vfmR='auto'):
p = raycing.distance_xy(beamLine.vfm.center, beamLine.sources[0].center)
if pitch is None:
sinPitch = beamLine.vfm.r * 1.5 / p
pitch = math.asin(sinPitch)
else:
sinPitch = math.sin(pitch)
if vfmR == 'auto':
beamLine.vfm.R = p / sinPitch
else:
beamLine.vfm.R = vfmR
fefm = beamLine.feFixedMask
op = fefm.center[1] * aceptanceV / 2 * min(1, pitch/2e-3)
fefm.opening[2] = -op
fefm.opening[3] = op
beamLine.vcm.pitch = pitch
p = raycing.distance_xy(beamLine.vcm.center, beamLine.sources[0].center)
beamLine.vcm.R = 2. * p / sinPitch
print('VCM.p = {0:.1f}'.format(p))
print('VCM.pitch = {0:.6f} mrad'.format(beamLine.vcm.pitch*1e3))
print('VCM.roll = {0:.6f} mrad'.format(beamLine.vcm.roll*1e3))
print('VCM.yaw = {0:.6f} mrad'.format(beamLine.vcm.yaw*1e3))
print('VCM.z = {0:.3f}'.format(beamLine.vcm.center[2]))
print('VCM.R = {0:.0f}'.format(beamLine.vcm.R))
p = raycing.distance_xy(beamLine.dmm.center, beamLine.vcm.center)
beamLine.dmm.center[2] = beamLine.height + p*math.tan(2*pitch)
aML = beamLine.dmm.material[0]
dSpacing = aML.d
print(u'DMM.dSpacing = {0:.6f} angstrom'.format(dSpacing))
if bragg is None:
theta = aML.get_Bragg_angle(energy) -\
aML.get_dtheta_symmetric_Bragg(energy)
# theta = np.radians(1.05)
bragg = theta + 2*pitch
else:
theta = bragg - 2*pitch
energy = rm.ch / (2*dSpacing*math.sin(theta))
print('DMM.energy = {0:.3f} eV'.format(energy))
print('DMM.bragg = {0:.6f} deg'.format(math.degrees(bragg)))
print('DMM.realThetaAngle = DMM.bragg - 2*VCM.pitch = {0:.6f} deg'.format(
math.degrees(theta)))
beamLine.dmm.energy = energy
beamLine.dmm.bragg = bragg
p = raycing.distance_xy(beamLine.vfm.center, beamLine.vcm.center)
if heightVFM is not None:
fixedExit = (heightVFM - beamLine.height - p * math.tan(2 * pitch)) * \
math.cos(2 * pitch)
else:
heightVFM = fixedExit / math.cos(2 * pitch) + \
beamLine.height + p * math.tan(2 * pitch) + 0.2
beamLine.heightVFM = heightVFM
beamLine.dmm.fixedExit = fixedExit
beamLine.dmm.cryst2perpTransl =\
beamLine.dmm.fixedExit/2./math.cos(beamLine.dmm.bragg)
print('DMM.pitch = {0:.6f} mrad'.format(beamLine.dmm.pitch*1e3))
print('DMM.roll = {0:.6f} mrad'.format(beamLine.dmm.roll*1e3))
print('DMM.yaw = {0:.6f} mrad'.format(beamLine.dmm.yaw*1e3))
print('DMM.z = {0:.3f}'.format(beamLine.dmm.center[2]))
print('DMM.fixedExit = {0:.3f}'.format(fixedExit))
print('DMM.cryst2perpTransl = {0:.3f}'.format(
beamLine.dmm.cryst2perpTransl))
p = raycing.distance_xy(
beamLine.vfm.center,
(beamLine.slitAfterDCM.center[0], beamLine.slitAfterDCM.center[1]))
slitHeight = heightVFM - p * math.tan(2 * pitch)
dz = beamLine.slitAfterDCM.opening[3] - beamLine.slitAfterDCM.opening[2]
beamLine.slitAfterDCM.opening[2] = slitHeight - beamLine.height - dz/2
beamLine.slitAfterDCM.opening[3] = slitHeight - beamLine.height + dz/2
beamLine.slitAfterDCM.set_optical_limits()
p = raycing.distance_xy(beamLine.vfm.center, beamLine.fsmDCM.center)
fsmHeight = heightVFM - p * math.tan(2 * pitch)
print('fsmDCM.z = {0:.3f}'.format(fsmHeight))
beamLine.vfm.pitch = -pitch
beamLine.vfm.center[2] = heightVFM # - beamLine.vfm.hCylinder
print('VFM.pitch = {0:.6f} mrad'.format(beamLine.vfm.pitch*1e3))
print('VFM.roll = {0:.6f} mrad'.format(beamLine.vfm.roll*1e3))
print('VFM.yaw = {0:.6f} mrad'.format(beamLine.vfm.yaw*1e3))
print('VFM.z = {0:.3f}'.format(beamLine.vfm.center[2]))
print('VFM.R = {0:.0f}'.format(beamLine.vfm.R))
print('VFM.r = {0:.3f}'.format(beamLine.vfm.r))
dz = beamLine.slitAfterVFM.opening[3] - beamLine.slitAfterVFM.opening[2]
beamLine.slitAfterVFM.opening[2] = heightVFM - beamLine.height - dz/2
beamLine.slitAfterVFM.opening[3] = heightVFM - beamLine.height + dz/2
beamLine.slitAfterVFM.set_optical_limits()
p = raycing.distance_xy(beamLine.vfm.center, beamLine.sources[0].center)
q = 1./(2 * np.sin(pitch)/beamLine.vfm.r - 1./p)
qr = raycing.distance_xy(beamLine.fsmSample.center, beamLine.vfm.center)
beamLine.spotSizeH = abs(1. - qr / q) * p * aceptanceH
qr = raycing.distance_xy(
(beamLine.slitEH.center[0], beamLine.slitEH.center[1]),
beamLine.vfm.center)
s = abs(1. - qr / q) * p * aceptanceH / 2
beamLine.slitEH.opening[0] = -s * 1.2
beamLine.slitEH.opening[1] = s * 1.2
dz = beamLine.slitEH.opening[3] - beamLine.slitEH.opening[2]
beamLine.slitEH.opening[2] = heightVFM - beamLine.height - dz/2
beamLine.slitEH.opening[3] = heightVFM - beamLine.height + dz/2
beamLine.slitEH.set_optical_limits()
if __name__ == '__main__':
beamLine = build_beamline(nrays=25000)
align_beamline(beamLine, pitch=2e-3, energy=9000., fixedExit=20.86)
print('finished')
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