Methods for using the conventional FeSO4 dosimeter to measure doses below 1000 rads

Law, J. Adam

doi:10.1016/0020-708x(71)90079-2

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Feso Solutions and Measurements1

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1972

1982

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Cited by 9 publications

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“…The solutions were prepared and the measurements made exactly as in the earlier photon work (Law and Naylor 1971), except that the majority of the measurements were made in 5 cm spectrophotometer cells in place of the 2 cm cells used previously. This allowed the use of appreciably lower radiation doses than before for a given level of accuracy (Law 1971).…”

Section: Feso Solutions and Measurementsmentioning

confidence: 99%

A comparison of ionization and ferrous sulphate dosimetry for megavoltage electrons

Law¹,

Naylor²

1972

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For 6oco y-radiation and electrons of incident energies from 3 t o 3.5 MeV, dose measurements using ionization and FeSO, methods are compared. If factors given by the HP-4 'Practical guide to electron dosimetry' are used, results from the two methods do not differ by more than 4%. However, the ionization results based on the HPB values of C, give a mean G-value of 152 over this energy region. If it is assumed that photon beams producing primary electrons of a given mean energy have the same G-value as electrons of that energy, then electron G-values predicted from photon results using HPA CA values and the same FeSO, equipment are about 8% higher than experimental values for 6 t o 10 MeV electrons.

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Section: Feso Solutions and Measurementsmentioning

confidence: 99%