Accession Number : ADA133181
Title : The Polarization Ratio of Crystal Monochromators.
Descriptive Note : Final rept.,
Corporate Author : ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
Personal Author(s) : Jennings,Laurence D
PDF Url : ADA133181
Report Date : Jun 1983
Pagination or Media Count : 15
Abstract : A tabulation of some 40 measured values of the polarization ratio K (a measure of the fractional polarization introduced into an X-ray beam by a crystal monochromator) is presented. The values may be represented through the parameter n given by K = cos n2 theta sub M. The measured values of n cluster around unity and the theoretical rationale for this result is discussed. Possible explanations of outlying values are considered. It is recommended that the polarization ratio of an apparatus be measured using a direct method whenever possible, but methods for estimating a value of K are also given.
Descriptors : *X rays, *Monochromators, *Polarization, Measurement, Ratios, X ray diffraction, Beams(Radiation), Indexes(Ratios)
Subject Categories : Physical Chemistry
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE