鈷-60遠隔治療機之timer error分析
Published in 放射治療與腫瘤學 • Dec 1, 1994
Authors:,,
陳合興
李玉麟
徐拯中
Abstract
When we treat patient by Co-60 teletherapy unit, we give the dose depend on the time that source is on. Because that the source transits between the position of beam on and beam off is mechanical action, we can't switch the source position instantly. In the period of time, the dose rate is instable ...
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