Megavoltage radiation dose response of digital computed radiography

被引：0
|
作者：
Wang, ZH [1 ]
Wu, QRJ [1 ]
Sibata, CH [1 ]
机构：
[1] Case Western Reserve Univ, Sch Med, Dept Radiat Oncol, Cleveland, OH 44106 USA
来源：
MEDICAL IMAGING 2001: PHYSICS OF MEDICAL IMAGING | 2001年 / 4320卷
关键词：
D O I：
10.1117/12.430958
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The response of a digital computed radiography system to the megavoltage therapeutic radiation beams was invested. A narrow slit of radiation beam was used to test the line spread function of the system. The effects of various facts such as cassette, beam energy, radiation dose, scanning orientation and timing on the line spread function were investigated. The calibration curves were established to calibrate the image intensity to the megavoltage radiation dose. The calibration curves were applied to measure the beam profiles of the radiation fields with various wedges.
引用
收藏
页码：236 / 243
页数：8
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