Characterization of a third generation, multi-mode sensor panel

被引：32

作者：

Colbeth, RE ^{[1
]}

Cooper, VN ^{[1
]}

Gilblom, DL ^{[1
]}

Harris, R ^{[1
]}

Job, ID ^{[1
]}

Klausmeier-Brown, ME ^{[1
]}

Marc, M ^{[1
]}

Pavkovich, J ^{[1
]}

Seppi, EJ ^{[1
]}

Shapiro, EG ^{[1
]}

Wright, MD ^{[1
]}

Yu, JM ^{[1
]}

机构：

[1] Varian Associates Inc, Palo Alto, CA 94304 USA

来源：

MEDICAL IMAGING 1999: PHYSICS OF MEDICAL IMAGING, PTS 1 AND 2 | 1999年 / 3659卷

关键词：

x-ray; imaging; flat panel; sensor; fluoroscopy; radiography; noise; amorphous silicon;

D O I：

10.1117/12.349527

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper describes a third-generation multi-mode x-ray imager whose applications include low-dose fluoroscopy, cine, spot films, and radiography. In addition, volumetric CT and applications whose environment includes a 2 tesla magnetic field are also in development [1,2]. The VIP-9 is based on an amorphous silicon TFT/Photodiode array and x-ray conversion screen, which is optionally a deposited CsI(TI) film or a removable Gd2O2S screen. There are three primary modes of operation: RAD for high resolution radiographs and spot films FLUORO for video rate, low dose fluoroscopy as well as cine ZOOM for high resolution, limited field of view (FOV) fluoroscopy Through improved electronics, the imager has greater sensitivity at low doses and far better rejection of correlated line noise than its' predecessors. In addition, the VIP-9 incorporates many ease-of-use features absent from earlier prototype imagers. While previous reports [3,4,5] have primarily focused on the imager construction and noise issues in large area sensing technology, in this paper the emphasis is on features which facilitate integration into a complete imaging system and measures of image quality.

引用

页码：491 / 500

页数：10

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