A fast profile monitor with scintillating fiber hodoscopes for high-intensity photon beams

被引：20

作者：

Ishikawa, T. ^{[1
]}

Fujimura, H. ^{[1
,5
]}

Hamano, H. ^{[2
]}

Hashimoto, R. ^{[1
,6
]}

Honda, Y. ^{[1
]}

Ishida, T. ^{[1
]}

Kaida, S. ^{[1
]}

Kanda, H. ^{[3
]}

Kido, S. ^{[1
]}

Matsumura, Y. ^{[1
]}

Miyabe, M. ^{[1
]}

Mizutani, K. ^{[4
]}

Nagasawa, I. ^{[1
]}

Nakamura, A. ^{[1
]}

Nanbu, K. ^{[1
]}

Nawa, K. ^{[1
]}

Ogushi, S. ^{[1
]}

Shibasaki, Y. ^{[1
]}

Shimizu, H. ^{[1
]}

Sugai, H. ^{[1
,7
]}

Suzuki, K. ^{[1
,8
]}

Takahashi, K. ^{[1
]}

Takahashi, S. ^{[1
]}

Taniguchi, Y. ^{[1
]}

Tokiyasu, A. O. ^{[1
]}

Tsuchikawa, Y. ^{[1
]}

Yamazaki, H. ^{[1
,9
]}

机构：

[1] Tohoku Univ, Res Ctr Electron Photon Sci, Sendai, Miyagi 9820826, Japan

[2] Osaka Univ, Nucl Phys Res Ctr, Ibaraki 5670047, Japan

[3] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[4] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[5] Wakayama Med Univ, Dept Phys, Wakayama 6418509, Japan

[6] High Energy Accelerator Org KEK, IMSS, Tsukuba, Ibaraki 3050801, Japan

[7] Tohoku Univ, Dept Quantum Sci & Energy Engn, Sendai, Miyagi 9808579, Japan

[8] Wakasa Wan Energy Res Ctr, Tsuruga, Fukui 9140192, Japan

[9] High Energy Accelerator Res Org KEK, Radiat Sci Ctr, Tokai, Ibaraki 3191195, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2016年 / 811卷

关键词：

Beam profile monitor; Tagged photon beam; Meson photo-production; TOHOKU; PI;

D O I：

10.1016/j.nima.2015.12.027

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A fast beam-profile monitor has been developed for high-energy photon beamlines at the Research Center for Electron Photon Science, Tohoku University. The position of the photon converted into an electron-positron pair in a 0.5 mm-thick aluminum plate is measured with two hodoscopes made of scintillating fibers with cross-sections of 3 x 3 mm(2). Events in which charged particles are produced upstream are rejected with a charge veto plastic scintillator placed in front of the plate, and pair-production events are identified with a trigger plastic scintillator placed behind the plate. The position is determined by a developed logic module with a field-programmable gate array. The dead time for processing an event is 35 ns, and a high data acquisition efficiency (similar to 100%) can be achieved with this monitor for high-intensity photon beams corresponding to 20 MHz tagging signals. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：124 / 132

页数：9

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