Displacement correction factor for fast-neutron dosimetry in a tissue-equivalent phantom

Autor:	L. S. August, C. C. Rogers, R. B. Theus, Frank H. Attix, P. Shapiro
Rok vydání:	1976
Předmět:	Neutrons Physics business.industry Radiotherapy Dosage General Medicine Neutron radiation Neutron temperature Displacement (vector) Imaging phantom Fast Neutrons Models Structural Radiotherapy High-Energy Optics Ionization chamber Dosimetry Neutron Nuclear medicine business Beam (structure)
Zdroj:	Medical Physics. 3:87-90
ISSN:	0094-2405
DOI:	10.1118/1.594208
Popis:	The displacement correction factor to be used for analysis of fast- neutron dosimetric measurements using air-filled EG and G tissue-equivalent ion chambers in a tissue-equivalent phantom has been investigated using the MANTA neutron radiotherapy beam generated by 35-MeV deuterons on a thick Be target. The displacement correction factor inferred from these measurements is 0.970 for the EG and G IC-17 (1.0-cm$sup 3$) ion chamber, and is 0.989 for the EG and G IC- 18 (0.1-cm$sup 3$) ion chamber. This multiplicative displacement correction factor has no significant dependence on depth in the phantom or on neutron beam size. (AIP)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1e2111904e7ad7b1c9b9edf986ed7a9 https://doi.org/10.1118/1.594208 Zobrazit plný text záznamu Plný text