#Copper kalpha1,2,3 spectrum interpolation table
#Mendenhall, et al., J. Phys. B., May 2017
#energy(eV) y y'' cubic spline coefficients
#interpolate to x between x1 and x2, y1, y2, ypp1, ypp2 by calculating:
#h=x2-x1, a=(x2-x)/h, b=(x-x1)/h, y=(a*y1+b*y2) + (h^2/6)((a^3-a)ypp1 + (b^3-b)ypp2)
7849.950 0.00339821 0
7899.975 0.00395845 4.95295e-07
7950.000 0.00590343 1.33891e-06
7957.200 0.0063741 -2.6497e-06
7964.400 0.00681588 5.91726e-06
7971.600 0.00756622 1.46928e-05
7978.800 0.00885748 -2.08108e-06
7986.000 0.0104491 2.83925e-05
7993.200 0.0133044 3.47764e-05
8000.400 0.0179514 3.98643e-05
8007.600 0.0273678 0.000357791
8014.800 0.0567408 0.000838755
8015.000 0.0579868 -0.0104353
8015.680 0.0619009 0.022581
8016.360 0.0700809 -0.0245363
8017.040 0.0744673 0.0263396
8017.720 0.0841445 -0.0121705
8018.400 0.0933992 0.0168605
8019.080 0.107484 0.00740833
8019.760 0.126119 0.0125339
8020.440 0.150417 0.0159528
8021.120 0.182969 0.0307472
8021.800 0.228738 0.0325604
8022.480 0.291615 0.0610061
8023.160 0.382184 0.082734
8023.840 0.514854 0.15436
8024.520 0.718709 0.223505
8025.200 1.03179 0.368874
8025.880 1.49781 0.285512
8026.560 2.0887 0.109447
8027.240 2.72734 -0.10381
8027.920 3.12413 -2.83234
8028.600 2.57543 -0.835297
8029.280 1.63837 1.13422
8029.960 1.02573 0.508037
8030.640 0.681531 0.316759
8031.320 0.486476 0.160251
8032.000 0.370982 0.0746077
8034.200 0.206331 0.0142292
8036.400 0.159812 0.0149208
8038.600 0.184075 0.0138329
8040.800 0.294631 0.0367235
8043.000 0.634967 0.124123
8043.333 0.731799 0.315287
8043.667 0.859005 0.254977
8044.000 1.01804 0.383563
8044.333 1.21767 0.402813
8044.667 1.45566 0.0766428
8045.000 1.71215 0.289673
8045.333 1.98781 -0.199868
8045.667 2.27626 1.19992
8046.000 2.67322 1.26007
8046.333 3.22526 2.13381
8046.667 4.01639 3.1157
8047.000 5.12554 2.57668
8047.333 6.45515 -1.51789
8047.667 7.50101 -11.8271
8048.000 7.43599 -11.1617
8048.333 6.29477 -1.64048
8048.667 4.87756 2.82027
8049.000 3.68529 2.50602
8049.333 2.77185 2.21225
8049.667 2.10542 1.98407
8050.000 1.64532 0.99299
8050.333 1.31414 1.00529
8050.667 1.08149 0.30683
8051.000 0.89841 0.444184
8051.333 0.760351 0.347478
8051.667 0.657708 0.0783964
8052.000 0.570491 0.171891
8052.333 0.499841 0.1287
8052.667 0.443455 0.0835496
8053.000 0.396535 0.0482969
8056.400 0.156372 0.00949018
8059.800 0.0861824 0.00196449
8063.200 0.0527411 0.00172513
8066.600 0.0373301 0.000493315
8070.000 0.0303283 0.000666237
8071.500 0.0289241 -0.000978092
8073.000 0.0272046 0.00240542
8074.500 0.0283016 -0.00113299
8076.000 0.0292867 0.00182814
8077.500 0.0321175 -0.00125776
8079.000 0.0329807 -0.00204395
8080.500 0.0312114 0.00241348
8082.000 0.0318755 -0.00112074
8083.500 0.0310408 -0.00192745
8085.000 0.0268264 -0.000182069
8086.500 0.0225063 0.0023741
8088.000 0.0208587 -0.00218794
8089.500 0.0170783 0.000690465
8091.000 0.0138288 0.000841633
8092.500 0.0120988 -5.1171e-06
8094.000 0.0107171 0.000107927
8095.500 0.00957122 0.000202025
8097.000 0.00873683 -8.52951e-05
8098.500 0.00796467 0.000305105
8100.000 0.00761978 4.26692e-06
8149.977 0.00394176 8.20978e-07
8199.955 0.00337872 -6.8123e-08
8249.932 0.00309415 1.20421e-07
8299.910 0.00298174 0