First test measurements of a 64k pixel readout chip working in single photon counting mode

被引：82

作者：

Llopart, X ^{[1
]}

Campbell, M ^{[1
]}

机构：

[1] CERN, CH-1211 Geneva 23, Switzerland

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 509卷 / 1-3期

关键词：

photon counting; pixel; CMOS; X-rays; medipix;

D O I：

10.1016/S0168-9002(03)01565-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Medipix2 chip is a pixel detector readout chip consisting of 256 x 256 identical elements, each working in single photon counting mode for positive or negative input charge signals. The chip is designed and manufactured in a six-metal 0.25 mum CMOS technology. This paper describes several electrical measurements which have been carried out on the chip prior to detector bump bonding using a dedicated readout system. Threshold linearity and variation has been measured for both electron and hole collection. The noise is similar to100e(-) RMS and the threshold can be adjusted to similar to120e(-) RMS for both polarities. The minimum operating threshold is similar to1000e(-.) (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：157 / 163

页数：7