DETERMINATION OF ERRORS IN POLARIZED NEUTRON DIFFRACTOMETRY

被引:18
作者
KENDRICK, H
WERNER, SA
ARROTT, A
机构
[1] Dept. of Nuclear Engineering, The University of Michigan, Ann Arbor, MI
[2] Scientific Laboratory, Ford Motor Company, Dearborn, MI
[3] Scientific Laboratory, Ford Motor Company, Dearborn, MI
[4] Dept. of Nuclear Engineering, The University of Michigan, Ann Arbor, MI
来源
NUCLEAR INSTRUMENTS & METHODS | 1969年 / 68卷 / 01期
关键词
D O I
10.1016/0029-554X(69)90688-0
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The polarized neutron method of determining the magnetic form factor of magnetic materials is examined in detail with special attention given to the way in which statistical errors are propagated. Because of the nonlinear relation between the polarizing efficiency of a crystal and the magnetic scattering length, the usual methods of linear error theory will not work. However, this difficulty can be circumvented by using the nonlinear formulas directly. The statistical error analysis is applied to the practical problem of how long one should count on a particular Bragg peak. This time will depend on the ratio of the magnetic to the nuclear scattering lengths, p b, and on the accuracy with which the beam polarizations and flipping efficiencies have been determined. © 1969.
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页码:50 / &
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