Malfunction of Linear Accelerator Dose Monitoring Systems

Autor:	Karen P. Doppke, Richard G. Lane, Bhaskaran K. Pillai, Philip F. Judy
Rok vydání:	1975
Předmět:	business.industry Nuclear engineering Electrons Radiotherapy Dosage Dose monitoring Linear particle accelerator Radiotherapy High-Energy Radiation Monitoring Medicine Radiology Nuclear Medicine and imaging Density of air Nuclear medicine business Lead (electronics) Morning
Zdroj:	Radiology. 115:734-735
ISSN:	1527-1315 0033-8419
DOI:	10.1148/15.3.734
Popis:	Malfunctions of the dose monitoring systems of two linear accelerators were studied. A variation of plus or minus 2.5% over an air density correction factor range from 1.02 to 1.07 was measured, suggesting that the ionization-type monitor chambers were open to the atmosphere. An average variation of minus 2.0% was present between early morning calibrations and those performed later in the day. Any variation caused by changes in control console temperature was within experimental error. This type of malfunction can lead to errors in delivered doses of 5%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbfeb6722839bb9b90876900bfaeb41e https://doi.org/10.1148/15.3.734 Zobrazit plný text záznamu