Direct measurements at the sub-pixel level of the X-ray detection efficiency of the CCD on board the ASCA satellite

被引：30

作者：

Yoshita, K ^{[1
]}

Tsunemi, H

Gendreau, KC

Pennington, G

Bautz, MW

机构：

[1] Osaka Univ, Toyonaka, Osaka 560, Japan

[2] NASA, GSFC, Greenbelt, MD 20771 USA

[3] Univ Maryland, College Pk, MD 20742 USA

[4] MIT, Cambridge, MA 02139 USA

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1998年 / 45卷 / 03期

关键词：

D O I：

10.1109/23.682668

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present here a measurement at sub-pixel resolution of the,X-ray detection efficiency of the CCD detector on board the ASCA satellite. A mesh placed in front of the CCD restricted the interaction position of the, X-ray inside the CCD pixel. We clearly show that all the primary charge is collected in one pixel when the X-ray interaction is sufficiently far from the pixel boundary. Conversely, some photo-ionized charge is collected in neighboring pixels when the, X-ray interacts near the pixel boundary. We also obtained the thickness of various elements gate structure, and measure channel stop dimensions. From these data., we can obtain more accurate estimates of the X-ray responsivity of the CCD.

引用

页码：915 / 920

页数：6

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