The focusing DIRC with waveform digitizing electronics

被引：7

作者：

Ruckman, L. L. ^{[2
]}

Nishimura, K. ^{[2
]}

Varner, G. S. ^{[2
]}

Va'vra, J. ^{[1
]}

Aston, D. ^{[1
]}

Leith, D. W. G. S. ^{[1
]}

Ratcliff, B. ^{[1
]}

机构：

[1] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA

[2] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 623卷 / 01期

关键词：

Fast focusing DIRC; Particle identification; Waveform sampling electronics; Super B factory; PHOTON DETECTORS;

D O I：

10.1016/j.nima.2010.02.229

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have tested a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC) with waveform digitizing electronics. The prototype's concept is based on the BaBar DIRC with several important improvements: (a) much faster, pixelated photon detectors, (b) a mirror that makes the photon detector smaller and less sensitive to background in future applications, and (c) electronics capable of measuring single photon resolution to sigma approximate to 150 ps, which allows for correction due to chromatic error. In this test, the prototype has been instrumented with seven Hamamatsu H-8500 MaPMTs. Waveforms from similar to 450 pixels are digitized with waveform sampling electronics based on the BLAB2 ASIC, operating at a sampling speed of similar to 2.5 GSa/s. This version of the FDIRC prototype was tested in a large cosmic ray telescope providing muon tracks with similar to 1 mrad angular resolution and a muon momentum cutoff of >= 1.6 GeV/c. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：303 / 305

页数：3

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