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Spectra of the internally scattered radiation from large Co⁶⁰ sources used in teletherapy

From National Research Council Canada

Alternative titleSpectra of the internally scattered radiation from large Co60 sources used in teletherapy
DOIResolve DOI: https://doi.org/10.1016/0020-708X(64)90020-1
AuthorSearch for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
Because of internal scattering and degradation of the 1.33 and 1.17 MeV quanta, the beam of radiation from a Co60 teletherapy unit includes a continuous spectrum extending well below 1 MeV. The form of this spectrum below 1 MeV and its intensity relative to the radiation above 1 MeV have been investigated for sources of various dimensions. The influence of the material around the source, the relative spectral contributions of different parts of the source, and the spectra from bare sources outside the teletherapy head have also been studied. Methods of designing source and head to minimize the radiation below 1 MeV may be inferred from the graphs.
Publication date
PublisherElsevier
In
  • The International Journal of Applied Radiation and Isotopes 15, no. 12 (December 1964): 713–724.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 8159
NRC-INMS-1993
NPARC number21275061
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Record identifierc6155e9b-98d4-4b84-bf72-7cc2a2292349
Record created2015-05-06
Record modified2020-09-01
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