Determination of transmission factors in beta radiation beams

Polo, Ivon Oramas; Caldas, Linda V. E.

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Determination of transmission factors in beta radiation beams

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Author(s):	Polo, Ivon Oramas ^[1] ; Caldas, Linda V. E. ^[1] Total Authors: 2
Affiliation:	^[1] CNEN, IPEN, Av Prof Lineu Prestes 2242, BR-05508000 Sao Paulo, SP - Brazil Total Affiliations: 1
Document type:	Journal article
Source:	Applied Radiation and Isotopes; v. 136, p. 82-86, JUN 2018.
Web of Science Citations:	0
Abstract
In beta emitters, in order to evaluate the absorbed dose rate at different tissue depths, it is necessary to determine the transmission factors. In this work, the transmission factors determined in beta secondary standard radiation beams are presented. For this purpose, an extrapolation chamber was used. The results obtained were considered acceptable, and they are within the uncertainties in comparison with the values provided by the source calibration certificate. The maximum differences between the results obtained in this work and those from the calibration certificate were 3.3%, 3.8% and 5.9% for Sr-90/Y-90, ssKr and (147)pm sources respectively. (AU)

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