Upstream veto counter for the K2K long baseline neutrino oscillation experiment

被引：1
作者：
Ahn, SH
An, S
Jeon, EJ
Hong, SJ
Kim, CO
Lee, JW
Oh, JK
Park, SH
Park, SK [1 ]
Goo, DK
机构：
[1] Korea Univ, Korea Detector Lab, Seoul 136701, South Korea
[2] Seoul Natl Univ Educ, Seoul 137742, South Korea
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 451卷 / 03期
关键词：
K2K; neutrino oscillation; veto counter; scintillator; photomultiplier tube;
D O I：
10.1016/S0168-9002(00)00328-4
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We have constructed and tested the upstream veto counter for the K2K long baseline neutrino oscillation experiment. The upstream veto counter was constructed in such a way that two VENUS scintillators were read out via a single photomultiplier tube at each end. Timing resolutions and efficiencies of the veto counter were better than 1.0 ns and 99% in the active region of the scintillators, respectively. Energy resolutions of the veto counter are also better than 20% between the far end and the center of the scintillators. We conclude that the upstream veto counter meets requirements to reject backgrounds such as cosmic muons and beam-related muons from the upstream water Cherenkov counter and to separate beam-induced electrons from muons. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：558 / 571
页数：14
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