Characterization of low-LET radiation fields for irradiation of biological samples using recombination chamber

Piotr Tulik , Sandra Katarzyna Lepak , Katarzyna Domańska , Edyta Jakubowska

Abstract

Irradiation of biological samples for biological dosimetry and radiobiological studies should be performed in well characterized radiation fields. The reference quantity for gamma and X-ray radiations is usually kerma in air, deter-mined with ionization chamber. The paper presents an example of characterization performed for X-rays using a thin-walled, reference ionization chamber. Standard procedure was completed with determination of Recombination Index of Radiation Quality (RIQ), determined with recombination chamber. Irradiations were performed at special stand supporting standard test tubes, which are commonly used in bio-logical dosimetry for blood samples. The influence of all elements of the supporting stand was carefully determined and taken into account in calculations of tissue kerma in blood. The RIQ values reflect microdosimetric parameters of the radiation. The measurements performed for unfiltered X-rays of different energies resulted in markedly higher values of RIQ, comparing to those measured for 137Cs or 60Co gamma radiation fields.
Author Piotr Tulik IMIB
Piotr Tulik,,
- The Institute of Metrology and Biomedical Engineering
, Sandra Katarzyna Lepak IMIB
Sandra Katarzyna Lepak,,
- The Institute of Metrology and Biomedical Engineering
, Katarzyna Domańska
Katarzyna Domańska,,
-
, Edyta Jakubowska IMIB
Edyta Jakubowska,,
- The Institute of Metrology and Biomedical Engineering
Pages135-140
Publication size in sheets0.5
Book Jabłoński Ryszard, Březina Tomáš (eds.): Advanced Mechatronics Solutions, Advances in Intelligent Systems and Computing, 2016, Springer, ISBN 978-3-319-23921-7, 668 p., DOI:10.1007/978-3-319-23923-1
Keywords in Englishradiation quality low-LET dosimetry radiobiology
DOIDOI:10.1007/978-3-319-23923-1_20
URL http://link.springer.com/chapter/10.1007/978-3-319-23923-1_20
Languageen angielski
Score (nominal)15
Citation count*0 (2016-05-16)
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