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# -*- coding: utf-8 -*-
__author__ = "Konstantin Klementiev"
__date__ = "08 Mar 2016"
import os, sys; sys.path.append(os.path.join('..', '..', '..')) # analysis:ignore
import numpy as np
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.plotter as xrtp
import xrt.runner as xrtr
import xrt.backends.raycing.screens as rsc
showIn3D = False
mGold = rm.Material('Au', rho=19.3, kind='FZP')
E0, dE = 400, 5
def build_beamline(nrays=1e5):
beamLine = raycing.BeamLine(height=0)
# source=rs.GeometricSource(
# beamLine, 'GeometricSource', (0, 0, 0),
# nrays=nrays, distx='flat', dx=0.12, distz='flat', dz=0.12,
# dxprime=0, dzprime=0,
# distE='flat', energies=(E0-dE, E0+dE), polarization='horizontal')
rs.GeometricSource(
beamLine, 'GeometricSource', (0, 0, 0),
nrays=nrays, distx='annulus', dx=(0, 0.056),
dxprime=0, dzprime=0,
distE='flat', energies=(E0-dE, E0+dE), polarization='horizontal')
beamLine.fsm1 = rsc.Screen(beamLine, 'DiamondFSM1', (0, 10., 0))
# beamLine.fzp = roe.NormalFZP(beamLine, 'FZP', [0, 10., 0], pitch=np.pi/2,
# material=mGold, f=2., E=E0, N=50)
beamLine.fzp = roe.GeneralFZPin0YZ(
beamLine, 'FZP', [0, 10., 0], pitch=np.pi/2,
material=mGold, f1='inf', f2=(0, 0, 2.), E=E0, N=500, phaseShift=np.pi)
# source.dx = 2 * beamLine.fzp.rn[-1]
# source.dz = source.dx
beamLine.fzp.order = 1
beamLine.fsm2 = rsc.Screen(beamLine, 'DiamondFSM2', (0, 12., 0))
return beamLine
def run_process(beamLine, shineOnly1stSource=False):
beamSource = beamLine.sources[0].shine()
# beamLine.feFixedMask.propagate(beamSource)
beamFSM1 = beamLine.fsm1.expose(beamSource)
beamFZPglobal, beamFZPlocal = beamLine.fzp.reflect(beamSource)
beamFSM2 = beamLine.fsm2.expose(beamFZPglobal)
outDict = {'beamSource': beamSource, 'beamFSM1': beamFSM1,
'beamFZPglobal': beamFZPglobal,
'beamFZPlocal': beamFZPlocal,
'beamFSM2': beamFSM2}
if showIn3D:
beamLine.prepare_flow()
return outDict
rr.run_process = run_process
def define_plots(beamLine):
fwhmFormatStrE = '%.2f'
plots = []
# plot = xrtp.XYCPlot(
# 'beamFSM1', (1,), xaxis=xrtp.XYCAxis(r'$x$', r'$\mu$m'),
# yaxis=xrtp.XYCAxis(r'$z$', r'$\mu$m'), title='FSM1_E')
# plot.caxis.fwhmFormatStr = None
# plot.saveName = [plot.title + '.png', ]
# plots.append(plot)
#
plot = xrtp.XYCPlot(
'beamFZPlocal', (1, -1),
xaxis=xrtp.XYCAxis(r'$x$', r'$\mu$m', bins=512, ppb=1,
limits=[-12, 12]),
yaxis=xrtp.XYCAxis(r'$y$', r'$\mu$m', bins=512, ppb=1,
limits=[-12, 12]),
caxis='category',
title='localZ')
plot.caxis.fwhmFormatStr = None
plot.textPanel = plot.ax1dHistX.text(
0.5, 0.02, '', size=14, color='w', transform=plot.ax1dHistX.transAxes,
ha='center', va='bottom')
plots.append(plot)
plot = xrtp.XYCPlot(
'beamFZPlocal', (1, -1),
xaxis=xrtp.XYCAxis(r'$x$', r'$\mu$m', bins=512, ppb=1),
yaxis=xrtp.XYCAxis(r'$y$', r'$\mu$m', bins=512, ppb=1),
caxis='category',
title='localFull')
plot.caxis.fwhmFormatStr = None
plot.textPanel = plot.ax1dHistX.text(
0.5, 0.02, '', size=14, color='w', transform=plot.ax1dHistX.transAxes,
ha='center', va='bottom')
plots.append(plot)
plot = xrtp.XYCPlot(
'beamFSM2', (1,),
xaxis=xrtp.XYCAxis(r'$x$', r'nm', bins=256, ppb=1, limits=[-500, 500]),
yaxis=xrtp.XYCAxis(r'$z$', r'nm', bins=256, ppb=1, limits=[-500, 500]),
caxis='category',
title='FSM2_Es')
plot.caxis.fwhmFormatStr = fwhmFormatStrE
plot.fluxFormatStr = '%.2e'
plot.textPanel = plot.ax1dHistX.text(
0.5, 0.02, '', size=14, color='w', transform=plot.ax1dHistX.transAxes,
ha='center', va='bottom')
plots.append(plot)
return plots
def plot_generator(plots, beamLine):
nShifts = 8
phaseShifts = np.arange(0, nShifts, dtype=float) / nShifts * 2 * np.pi
strPhaseShifts = ('0', r'$\pi/4$', r'$\pi/2$', r'$3\pi/4$',
r'$\pi$', r'$5\pi/4$', r'$3\pi/2$', r'$7\pi/4$')
for iPhaseShift, (phaseShift, strPhaseShift) in\
enumerate(zip(phaseShifts, strPhaseShifts)):
beamLine.fzp.set_phase_shift(phaseShift)
for plot in plots:
plot.saveName = ['FZP-{0}{1}.png'.format(
plot.title, iPhaseShift)]
try:
plot.textPanel.set_text(u'phase shift = {0}'.format(
strPhaseShift))
except AttributeError:
pass
yield
def main():
beamLine = build_beamline()
if showIn3D:
beamLine.glow(scale=[100, 10, 100], centerAt='FZP',
colorAxis='xzprime')
return
plots = define_plots(beamLine)
xrtr.run_ray_tracing(plots, repeats=360, generator=plot_generator,
beamLine=beamLine, processes='half')
#this is necessary to use multiprocessing in Windows, otherwise the new Python
#contexts cannot be initialized:
if __name__ == '__main__':
main()
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