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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Physics in Medicine ...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Physics in Medicine and Biology
Article . 1969 . Peer-reviewed
License: IOP Copyright Policies
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Uniformity of high-energy electron-beam calibrations

Authors: M, Ehrlich; P J, Lamperti;

Uniformity of high-energy electron-beam calibrations

Abstract

A survey is made of the first year of operation of a new service offered by the National Bureau of Standards (NBS). Dosemeter units, consisting of polystyrene blocks holding stoppered quartz spectrophotometer cells filled with Fricke solution, are being shipped periodically to groups requesting assistance with absorbed-dose measurements in high-energy electron beams. As a check on their stability, all dosemeters are pre-exposed to 60Co γ-rays. The participants irradiate a portion of the dosemeters with electrons, using energies between about 5 and 50 Mev, and doses between 4000 and 8000 rads in water. The exposed dosemeters are returned to NBS for evaluation. During the first year of operation, slightly more than one-half of the doses reported by the participants were within ±5% of the NBS dose interpretation, but some differed by as much as 30% or more. Little correlation was found between a participant's method of beam calibration and agreement with NBS dose interpretation.

Keywords

Radiotherapy, High-Energy, Cobalt Isotopes, Spectrophotometry, Polystyrenes, Electrons, Radiometry, Mathematics, United States

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Average
Top 10%
Average
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