Radiation contamination and leakage assessment of intraoperative electron applicators

Autor:	Nina Samsami, Farideh R. Bagne, Ralph R. Dobelbower
Rok vydání:	1988
Předmět:	Photon business.industry medicine.medical_treatment Collimator General Medicine Radiation Contamination law.invention Radiation therapy Optics law Medicine Dosimetry Radiation monitoring business Nuclear medicine Intraoperative radiation therapy
Zdroj:	Medical Physics. 15:530-537
ISSN:	0094-2405
DOI:	10.1118/1.596204
Popis:	In intraoperative radiation therapy, it is critical to reduce the radiation contamination outside the useful field by as much as physically feasible. Additionally, a uniform dose is clinically desirable across the tumor volume. A study of the Medical College of Ohio applicators indicates that the radiation contamination outside the field can be as high as 18% of the central axis dose. The effects of the photon collimator setting on the magnitude and energy of the radiation contamination are discussed and means are presented for reducing this unwanted radiation. The dose nonuniformity across the field is found to be virtually independent of the photon collimator setting and is shown to be mostly due to the transparent applicator wall. The clinical significance of the findings is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fc1eb5d6d8f43290eecd58641cbbec8e https://doi.org/10.1118/1.596204 Zobrazit plný text záznamu Plný text