Evaluation of a digital X-ray detector based on a phosphor-coated CCD for mammography

被引:13
作者
Taibi, A [1 ]
DelGuerra, A [1 ]
Gambaccini, M [1 ]
Marziani, M [1 ]
Tuffanelli, A [1 ]
机构
[1] IST NAZL FIS NUCL,SEZ FERRARA,I-44100 FERRARA,ITALY
关键词
X-ray detector; CCD; mammography;
D O I
10.1016/S0168-9002(97)00209-X
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The imaging performance of a phosphor-coated CCD system for mammography application is evaluated. The coated CCD is obtained by direct deposition of a Gd2O2S:Eu powder onto a detector surface. Modulation transfer function, noise power spectrum, and detective quantum efficiency are measured. Their dependence on the input beam X-ray energy is discussed. Images of a test phantom for mammography are compared with those obtained with a screen-film combination.
引用
收藏
页码:210 / 213
页数:4
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