Record Details     « New Search       Brief Record Full Record MARC Record     Bibliographic Data 001    76177 005    20110810182721.PM 008    110810s |||||||||b ||00||| 040 ## $aPCASTRD-DOST 041 0# $aeng 100 1# $a Carpenter, J.M. 100 1# $aMildner, D,F,R, 245 00 $aImprovements to the Chebyshev expansion of attenuation correction factors for cylindrical 300 ## $a378-386 520 3# $aThe accuracy of the Chebyshev expansion coefficients used for the calculation of attenuation correction factors for cylindrical samples has been improved. An increased order of expansion allows the method to be useful over a greater range of attenuation. It is shown that many of tehse coefficients are exactly zero, others are rational numbers, and others are rational factors of II-1. The assumptions of Sears (J.of Appl. Cryst. (1984), 17, 226-230] in his asymptotic expression of the attenuation correction factor are also examined. 650 04 $aChebyshev expansion coefficients 650 04 $aAttenuation correction factors 991 ## $wANALYTICS           Physical Location           Digital Copy Not Available          Add to Book Cart  |   Download MARC