MTF evaluation of a phosphor-coated CCD for x-ray imaging

被引：34

作者：

Gambaccini, M ^{[1
]}

Taibi, A ^{[1
]}

DelGuerra, A ^{[1
]}

Marziani, M ^{[1
]}

Tuffanelli, A ^{[1
]}

机构：

[1] IST NAZL FIS NUCL,I-44100 FERRARA,ITALY

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1996年 / 41卷 / 12期

关键词：

D O I：

10.1088/0031-9155/41/12/016

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A novel digital x-ray detector has been assembled. The imaging system is based on a phosphor-coated charge-coupled device (CCD) obtained by direct deposition of a gadolinium oxysulphide scintillator onto the detector surface. The modulation transfer function has been measured along the two directions of the digital coordinates with the narrow slit technique. A resolution limit of about 20 line pairs per mm has been obtained for both directions. The high spatial resolution currently demanded in mammography can be achieved with this imaging system.

引用

页码：2799 / 2806

页数：8

共 8 条

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