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lamp_mac/D7_b/

isotropic_ms_pd.pro


top isotropic_ms_PD

result = isotropic_ms_PD(w_in0, roh=roh, muR=muR, abs_xs=abs_xs, nuc_xs=nuc_xs, inc_xs=inc_xs, mag_xs=mag_xs)

******* *************** ** User callable ** Takes background subtracted D7 data of 1, 2 or 6 phases and corrects for ** multiple scattering using the isotropic approximation of Wells and Cywinski, ** and the secondary scattering coefficients of Blech and Averbach. At present, ** deals only with cylindrical samples. Correction of TOF data not yet implemented. ** ** References ** ---------- ** P. Wells and R. Cywinski, Aust. J. Phys. 34 (1981) 193 ** T. M. Harders, T. J. Hicks and P. Wells, J. Appl. Cryst. 18 (1985) 131 ** J. Mayers and R. Cywinski, Nucl. Inst. Meth. Phys. Res. A241 (1985) 519 ** I. A. Blech and B. L. Averbach, Phys. Rev. 137 (1965) A1113 ** ** ARGUMENTS: ** roh : R/h - radius of cylinder over height ** muR : Nsigmat*R calculated from transmission measurements ** abs_xs: Absorption Cross-section (actual) in barns ** nuc_xs: Nuclear Cross-section in barns ** inc_xs: Spin-Incoherent cross-section in barns ** mag_xs: Magnetic cross-section in barns (optional) ** ** DIMENSIONS ** w_in = w_out(nspectra,nphases,nruns) - unless nruns=1 ** ** COMMAND SYNTAX: ** w6=isotropic_ms(w5,roh=,muR=,abs_xs=,nuc_xs=,inc_xs=[,mag_xs=]) ** ** (optional arguments shown in square brackets) ** To be placed directly after the background macro. ** JRS 18/4/02 ** xyz components corrected PD 04/10/10 ** ------------------------------------------------------------------------------- ** *******************************************************************************

Parameters

w_in0

Keywords

roh
muR
abs_xs
nuc_xs
inc_xs
mag_xs

File attributes

Modification date: Tue Oct 1 14:43:50 2013
Lines: 334