Energy-reduced beta radiation fields from 90Sr/90Y for the BSS 2

R. Behrens

doi:10.1088/1748-0221/15/05/P05015

Journal of Instrumentation

The following article is Open access

Energy-reduced beta radiation fields from ⁹⁰Sr/⁹⁰Y for the BSS 2

R. Behrens¹

Published 26 May 2020 • © 2020 The Author(s)
Journal of Instrumentation, Volume 15, May 2020 Citation R. Behrens 2020 JINST 15 P05015 DOI 10.1088/1748-0221/15/05/P05015

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¹ Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany

Dates

Received 17 January 2020
Accepted 6 April 2020
Published 26 May 2020

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Abstract

For decades, the irradiation facility for beta radiation, the Beta Secondary Standard BSS 2 developed at PTB, has been in worldwide use to irradiate dosemeters, detectors and other devices with calibrated beta sources. In this work two energy-reduced radiation fields based on the ⁹⁰Sr/⁹⁰Y source are described. Their electron and photon particle spectra are made available as data files. In addition, angular distributions and the depth dose profiles are given. The spectra were determined using the Monte Carlo particle transport code EGSnrc/BEAMnrc and are provided in the supplementary data.

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© 2020 The Author(s). Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

Supplementary data

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Supplementary data. PhSpFiles_Sr90_20cm_4mmPMMA_El-Ph.zip (with a 4 mmm PMMA filter) Zip file containing binary files of the radiation fields of Sr-90/Y-90 sources at a distance of 15 cm from the source and 5 cm from the reference plain (20 cm from the source), with a 4 mmm PMMA filter. They can be read using EGSnrc or BEAMnrc and can be used for a precise simulation of the radiation fields of the BSS 2. (915 MB) [ZIP file containing 2 files]

Supplementary data. PhSpFiles_Sr90_20cm_3mmPMMA_El-Ph.zip (with a 3 mmm PMMA filter) Zip file containing binary files of the radiation fields of Sr-90/Y-90 sources at a distance of 15 cm from the source and 5 cm from the reference plain (20 cm from the source), with a 3 mmm PMMA filter. They can be read using EGSnrc or BEAMnrc and can be used for a precise simulation of the radiation fields of the BSS 2. (1089 MB) [ZIP file containing 2 files]

Supplementary data. ASCII-spectra at the reference distance and without the contribution of back scattered radiation, i.e. for the absence of the phantom. Spectra are given for areas with a radius of 0-1.5 cm, 3-6 cm, and 9-12 cm in units of "1/(cm 2 MeV) per source decay" for both electrons and photons, i.e. absolute values are given.