High resolution x-ray image sensors based on HgI2

被引:19
|
作者
Street, RA [1 ]
Mulato, M [1 ]
Ready, SE [1 ]
Lau, R [1 ]
Ho, J [1 ]
VanSchuylenbergh, K [1 ]
Schieber, M [1 ]
Hermon, H [1 ]
Zuck, A [1 ]
Vilensky, A [1 ]
机构
[1] Xerox Corp, Palo Alto Res Ctr, Palo Alto, CA 94304 USA
关键词
mercury iodide; x-ray imaging; direct detection;
D O I
10.1117/12.410562
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Measurements of polycrystalline HgI2 films on active matrix direct detection image sensors are described, for possible application to high sensitivity room temperature x-ray detection. The arrays exhibit low leakage current and very high sensitivity - roughly an order of magnitude better than has been demonstrated with other designs. The uniformity of the response varies randomly from pixel to pixel, for reasons that are not yet understood, but are probably related to the large grain size.
引用
收藏
页码:189 / 196
页数:4
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