Results from a 20 scintillator bar time-of-flight test system located inside the 1.4 T CDF solenoid

被引：6

作者：

Ukegawa, F

Heinrich, JG

Lockyer, NS ^{[1
]}

Long, O

Kononenko, W

Gao, T

Newcomer, FM

Van Berg, R

Kephart, R

Mori, S

Kondo, K

机构：

[1] Univ Penn, Philadelphia, PA 19104 USA

[2] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[3] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 439卷 / 01期

关键词：

time-of-flight; CDF; particle identification; hodoscope; photomultiplier; scintillator;

D O I：

10.1016/S0168-9002(99)00885-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper reports on a test time-of-flight (TOF) system that operated in the Collider Detector at Fermilab (CDF) during pp Tevatron collider operation at root s = 1.8 TeV in the fall 1995 running period. The TOF system consisted of 20 130 x 4 x 4 cm(3) long Bicron BC408 scintillator bars, with each end of the bars fitted with a small compound parabolic concentrator and a 16-stage R5946 Hamamatsu fine-mesh photomultiplier. The electronics chain consisted of a custom designed preamplifier, constant fraction discriminator, and commercial TDC and ADC FASTBUS modules read out with the CDF data acquisition system. The counters were installed between the Central Tracking Chamber and the 1.4 T superconducting solenoid at a mean radius of 140 cm. We report a procedure for calculating the to time from all tracks in an event, the timing resolution, and the particle identification performance of this system. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：65 / 79

页数：15

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