playground:playground
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— Alan Coelho 2016/03/10 15:22
Example of how to get a Mass attenuation coefficient corresponding to XRF results
macro AW_Ce { 140.116 } ' Atomic weight from ISOTOPES.TXT macro AW_O { 15.9994 } ' Atomic weight from ISOTOPES.TXT macro e_Ce { 81.408 } ' elemental wt% from XRF macro e_O { 18.592 } ' elemental wt% from XRF r_wp 0 XDD(ceo2) CuKa5(0.0001) Radius(173) LP_Factor(17) Full_Axial_Model(12, 20, 12, 5.1, @ 7) Divergence(1) Slit_Width(.1) bkg @ 0 0 0 0 0 One_on_X(@, 1000) Zero_Error(@, 0) elemental_composition { Rietveld CE 81.408 O 18.592 } str space_group F_M_3_M phase_name CeO2 scale @ 0.0014503208 Cubic(@ 5.41) site Ce1 occ Ce+4 1 beq @ 0.2028 site O1 x 0.25 y 0.25 z 0.25 occ O-2 1 beq @ 0.5959 CS_L(@, 300) Strain_L(@, 0.1) MVW(0, 0, 0) Phase_LAC_1_on_cm(0) /* Mass attenuation coefficient calculated by Rietveld refinement */ prm = Get(phase_MAC); : 0 dummy_str space_group P1 scale 0 a 1 b 1 c 1 site Ce occ Ce+4 = 1; site O occ O-2 = (e_O / e_Ce) AW_Ce / AW_O; /* Mass attenuation coefficient corresponding to XRF results */ prm = Get(phase_MAC); : 0
playground/playground.1457623736.txt.gz · Last modified: 2022/11/03 15:08 (external edit)