Energy loss of high energy electrons in aluminum, copper, and lead

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Author
DeLeuil, Wood Rene
Raynis, James Bruce
Date
1969Advisor
Dyer, John M.
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Show full item recordAbstract
The energy distributions of electrons of about 54, 75, and 92
MeV were measured before and after passing through lead absorbers of
2 thicknesses ranging from 0.706 to 2.825 gm/cm , and through copper
2
and aluminum absorbers up to 5.726 gm/cm . The electrons were accelerated
by the LINAC of the Naval Postgraduate School. A measurement to
determine the optimum location of the absorber indicated that the
separation between the scattering foil and absorber should not exceed
6 cm, if geometric difficulties are to be avoided. The most probable
energy losses agree with the theory of Blunck and Westphal for all
three materials and all thicknesses. The half-widths of the distri-
2
butions agree with theory up to thicknesses of about 2 gm/cm . For
greater thicknesses the experimental half-widths of copper absorbers
appear to agree with theory; the experimental half-widths of aluminum
are greater than theoretical predictions; and those of lead are smaller
than theory predicts.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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