Electron Energy Straggling Measurements for Thick Targets of Beryllium, Aluminum, and Gold at 4.0 and 8.0 MeV
作者:
J. A. Lonergan,
C. P. Jupiter,
G. Merkel,
期刊:
Journal of Applied Physics
(AIP Available online 1970)
卷期:
Volume 41,
issue 2
页码: 678-688
ISSN:0021-8979
年代: 1970
DOI:10.1063/1.1658732
出版商: AIP
数据来源: AIP
摘要:
Energy spectra of electrons transmitted through targets of Be, Al, and Au were measured for incident electron energies of 4.0 and 8.0 MeV. The target thicknesses corresponded to ⅕ or ½ the range (calculated in the continuous slowing‐down approximation) for the incident electron energy. Transmitted electron spectra were measured as a function of emission angle in the forward hemisphere using a magnetic spectrometer. Angular distributions and energy spectra are compared with results calculated with a Monte Carlo computer program (the NBS ETRAN‐15 program). The calculations agree with the experimental data within the experimental error of measurement, except for the aluminum target where spectral comparison agree but there exists a normalization discrepancy. A spectral shift is observed in the data from a beryllium target.
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