HIGH-SPEED DIGITAL TDC FOR D0 VERTEX RECONSTRUCTION

被引：6

作者：

GAO, GS ^{[1
]}

PARTRIDGE, R ^{[1
]}

机构：

[1] NANJING UNIV,DEPT INFORMAT PHYS,NANJING,PEOPLES R CHINA

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1991年 / 38卷 / 02期

关键词：

D O I：

10.1109/23.289311

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：

A high speed digital TDC has been built as part of the Level 0 trigger for the D-theta experiment at Fermilab. The digital TDC is used to make a fast determination of the primary vertex position by timing the arrival times of beam jets detected in the Level 0 counters. The vertex position is then used by the Level 1 trigger to determine the proper sin theta weighting factors for calculating transverse energies. Commercial GaAs integrated circuits are used in the digital TDC to obtain a time resolution of sigma-t = 226 ps.

引用

页码：286 / 289

页数：4