Energy-Loss Spectra for High-Energy Electrons as a Function of Depth in an Absorber

Collimated beams of electrons with energies of 20 and 35 MeV were available from a betatron used for radiotherapy. A semiconductor detector was used to obtain the spectrum of energy deposits by electrons in its 450-μm thickness. The detector was placed behind Lucite to observe the change in spectra...

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Bibliographic Details
Published in:Radiation research 1969-04, Vol.38 (1), p.1-6
Main Authors: Olien, T. C., Holloway, A. F.
Format: Article
Language:English
Subjects:
Absorption
Absorption spectra
Acrylic Resins
Arithmetic mean
Betatrons
Electron energy
Electrons
Energy
Light beams
Physical Phenomena
Physics
Radiotherapy, High-Energy
Seltzer
Silicon
Space life sciences
Spectrum Analysis
Technology, Radiologic
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Summary:Collimated beams of electrons with energies of 20 and 35 MeV were available from a betatron used for radiotherapy. A semiconductor detector was used to obtain the spectrum of energy deposits by electrons in its 450-μm thickness. The detector was placed behind Lucite to observe the change in spectra with depth. Features of the spectra were compared with results predicted by calculations. The qualitative influence of secondary electrons was noted.
ISSN:0033-7587
1938-5404
DOI:10.2307/3572706