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Problems encountered with a radiation field analyzer
Author(s) -
Haskard Donald L.,
Tooze Mervyn J.
Publication year - 1983
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595276
Subject(s) - ionization chamber , spectrum analyzer , detector , optics , diode , dosimetry , radiation , particle detector , physics , polarity (international relations) , materials science , nuclear medicine , ion , optoelectronics , chemistry , medicine , ionization , biochemistry , quantum mechanics , cell
Isodose measurements of 4‐MV beams obtained with a Therados radiation field analyzer were found to vary significantly with the types of detector used, viz., a Physikalisch–Technische Werkstatten (PTW) ion chamber with positive and negative collecting potentials and a Therados diode detector. Suitable means of minimizing the ion chamber polarity effect are described.