POSITION-SENSITIVE PHOTONCOUNTING WITH AN ISPA TUBE

被引：11

作者：

DAMBROSIO, C

GYS, T

LEUTZ, H

PIEDIGROSSI, D

PUERTOLAS, D

TAILHARDAT, S

机构：

[1] CERN, Geneva

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1995年 / 42卷 / 03期

关键词：

D O I：

10.1109/23.387352

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：

The newly developed Imaging Silicon Pixel Array (ISPA) tube consists of a photocathode viewed at a 30-mm distance by a silicon chip, which contains 1024 pixels with 75 mu m x 500 mu m edges. With this tube we imaged, as an example of a weak light source, beta-tracks (Sr-90) traversing a fused square bundle (2.5 mm edges), which contains 1600 individual scintillating fibers of 60-mu m transverse dimension. Simultaneously we counted the number of photoelectrons/mm (hit density) at different source positions along the 2-m fiber bundle, with potential differences varying from 10 kV to 26 kV between photocathode and pixel anode of the ISPA tube, and at different threshold settings of the pixel chip. The obtained hit densities are compared with those measured with a Hybrid Photomultiplier Tube (HPMT), which contains a silicon pin diode as anode instead of a pixel chip.

引用

页码：130 / 133

页数：4

共 9 条

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