Abstract
In standard Mott electron polarimetry using thin gold film targets, extrapolation procedures must be used to reduce the experimentally measured asymmetries A to the values they would have for scattering from single atoms. These extrapolations involve the dependence of A on either the gold film thickness t or the maximum detected electron energy loss in the target ΔE. Using a concentric cylindrical-electrode Mott polarimeter, we have studied and compared these two types of extrapolations over the electron energy range 20-100 keV. The potential systematic errors which can result from such procedures are analyzed in detail, particularly with regard to the use of various fitting functions in thickness extrapolations, and the failure of perfect energy-loss discrimination to yield accurate polarizations when thick foils are used. A critical discussion of previous work on this subject is presented.
Recommended Citation
T. J. Gay et al., "Extrapolation Procedures In Mott Electron Polarimetry," Review of Scientific Instruments, vol. 63, no. 1, pp. 114 - 130, American Institute of Physics, Dec 1992.
The definitive version is available at https://doi.org/10.1063/1.1143118
Department(s)
Physics
International Standard Serial Number (ISSN)
0034-6748
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 American Institute of Physics, All rights reserved.
Publication Date
01 Dec 1992
