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Code Block
# file name: ./v02-lut-cxif5315-r0169-2016-02-03T15:10:48.txt
# photon energy = 6003.1936 eV
# wavelength = 2.0653 A
# wave number/Evald radius k = 1/lambda = 0.484187 1/A
# sigma_ql = 0.001453 1/A (approximately = k * <pixel size>/
# sigma_qt = 0.000484 1/A (approximately = k * <pixel size>/<sample-to-detector distance> = k*100um/100mm)
# 3*sigma_ql = 0.004358 1/A
# 3*sigma_qt = 0.001453 1/A
# Triclinic crystal cell parameters:
#   a = 18.55 A
#   b = 27.19 A
#   c = 4.86 A
#   alpha = 90.00 deg
#   beta  = 90.00 deg
#   gamma = 78.47 deg
# 3-d space primitive vectors:
#   a1 = ( 18.550000,   0.000000,   0.000000)
#   a2 = ( -5.435624,  26.645524,   0.000000)
#   a3 = (  0.000000,   0.000000,   4.860100)
# reciprocal space primitive vectors:
#   b1 = (  0.053908,   0.010997,  -0.000000)
#   b2 = (  0.000000,   0.037530,   0.000000)
#   b3 = (  0.000000,  -0.000000,   0.205757)
# _________________________________________________________________________________________
# beta 0.00  omega 0.00 degree
# index    beta   omega   h   k   l   dr[1/A]  R(h,k,l)   qv[1/A]   qh[1/A]  P(omega)
     1     0.00    0.00   0  -1   0  0.001452  0.037530  0.000000 -0.037446  0.606641
     1     0.00    0.00   0   1   0  0.001452  0.037530  0.000000  0.037446  0.606641
     1     0.00    0.00  -1   6   0 -0.003549  0.220861  0.000000  0.221647  0.050590
# beta 0.00  omega 0.50 degree
# index    beta   omega   h   k   l   dr[1/A]  R(h,k,l)   qv[1/A]   qh[1/A]  P(omega)
     2     0.00    0.50   0  -1   0  0.001779  0.037530  0.000000 -0.037419  0.472496
     2     0.00    0.50   0   1   0  0.001126  0.037530  0.000000  0.037469  0.740615
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Check for look-up table

Method cxif5315/plot-lattice-from-data.py generates two plots from look-up table;

  1. intensities for omega vs. qh
  2. reconstructed lattice from measured omega and qh

Image AddedImage Added

 

 

Mask

Mask is regenerated for equatorial region as

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