Surface dose rate calibration of Sr-90 plane ophthalmic applicators

Autor:	S J, Goetsch, K S, Sunderland
Rok vydání:	1991
Předmět:	Eye Diseases Brachytherapy Calibration Strontium Radioisotopes Humans Radiotherapy Dosage Beta Particles
Zdroj:	Medical physics. 18(2)
ISSN:	0094-2405
Popis:	Calibration of an imported strontium-90 ophthalmic applicator at the U.S. National Bureau of Standards (now the National Institute of Standards and Technology) has disclose a significant discrepancy in dose rate calibration (32%-35%) with that quoted by the manufacturer. The University of Wisconsin has investigated this discrepancy and found that both laboratories use similar techniques and a version of the Bragg-Gray equation to yield dose rate estimates. Experimental results indicate a strong relationship between the size of the collecting electrode used in the extrapolation chamber and the resulting estimate of absorbed dose rate. Calibration of these applicators is reviewed and suggestions for improvement and further research are proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::0f7b5ebe9b27ca9de154d7e0b3e3b1f7 https://pubmed.ncbi.nlm.nih.gov/2046600 Zobrazit plný text záznamu Plný text