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- W1972617077 abstract "For several years, the Beta Secondary Standard (BSS 2) developed at PTB has been in worldwide use to perform irradiations with calibrated beta sources. In this work, the photon contamination of the reference beta radiation fields was measured using a high purity germanium (HPGe) spectrometer. Both the spectral distribution of the photons and the resulting dose(rate) was deduced from the measurements. The dose due to photons turned out to be about 0.6% for 147Pm sources, 0.5% for 106Ru/106Rh sources, and less than 0.1% for 85Kr and 90Sr/90Y sources compared to the dose due to betas. For 147Pm,85Kr, and 90Sr/90Y sources, the dominating contribution consists of bremsstrahlung and characteristic X-rays produced in the source encapsulation, while for106Ru/106Rh sources the gamma emissions from the radionuclides themselves are dominant." @default.
- W1972617077 created "2016-06-24" @default.
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- W1972617077 date "2011-09-27" @default.
- W1972617077 modified "2023-09-25" @default.
- W1972617077 title "Photon spectra from beta sources of the Beta Secondary Standard BSS 2" @default.
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- W1972617077 doi "https://doi.org/10.1088/1748-0221/6/09/p09006" @default.
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