Construction and performance of the barrel electromagnetic calorimeter for the GlueX experiment

被引：26

作者：

Beattie, T. D. ^{[1
]}

Foda, A. M. ^{[1
]}

Hensche, C. L. ^{[1
]}

Katsaganis, S. ^{[1
]}

Krueger, S. T. ^{[1
]}

Lolos, G. J. ^{[1
]}

Papandreou, Z. ^{[1
]}

Plummer, E. L. ^{[1
]}

Semenova, I. A. ^{[1
]}

Semenov, A. Yu ^{[1
]}

Barbosa, F. ^{[2
]}

Chudakov, E. ^{[2
]}

Dalton, M. M. ^{[2
]}

Lawrence, D. ^{[2
]}

Qiang, Y. ^{[2
,7
]}

Sandoval, N. ^{[2
]}

Smith, E. S. ^{[2
]}

Stanislav, C. ^{[2
]}

Stevens, J. R. ^{[2
,8
]}

Taylor, S. ^{[2
]}

Whitlatch, T. ^{[2
]}

Zihlmann, B. ^{[2
]}

Levine, W. ^{[3
]}

McGinley, W. ^{[3
]}

Meyer, C. A. ^{[3
]}

Staib, M. J. ^{[3
]}

Anassontzis, E. ^{[4
]}

Kourkoumelis, C. ^{[4
]}

Vasileiadis, G. ^{[4
]}

Voulgaris, G. ^{[4
]}

Brooks, W. K. ^{[5
]}

Hakobyan, H. ^{[5
]}

Kuleshov, S. ^{[5
]}

Rojas, R. ^{[5
]}

Romero, C. ^{[5
]}

Soto, O. ^{[5
]}

Toro, A. ^{[5
]}

Vega, I ^{[5
]}

Shepherd, M. R. ^{[6
]}

机构：

[1] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada

[2] Jefferson Lab, Newport News, VA 23606 USA

[3] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[4] Univ Athens, Athens 15771, Greece

[5] Univ Tecn Federico Santa Maria, Casilla 110-5, Valparaiso, Chile

[6] Indiana Univ, Bloomington, IN 47405 USA

[7] Toshiba Med Res Inst USA Inc, 706 N Deerpath Dr, Vernon Hills, IL 60061 USA

[8] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2018年 / 896卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Electromagnetic calorimeter; Sampling calorimeter; Scintillating fibers; Silicon photomultipliers; MPPC; GlueX; SCSF-78MJ SCINTILLATING FIBERS; SPECTRAL RESPONSE; BEAM; JLAB;

D O I：

10.1016/j.nima.2018.04.006

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The barrel calorimeter is part of the new spectrometer installed in Hall D at Jefferson Lab for the GlueX experiment. The calorimeter was installed in 2013, commissioned in 2014 and has been operating routinely since early 2015. The detector configuration, associated Monte Carlo simulations, calibration and operational performance are described herein. The calorimeter records the time and energy deposited by charged and neutral particles created by a multi-GeV photon beam. It is constructed as a lead and scintillating-fiber calorimeter and read out with 3840 large-area silicon photomultiplier arrays. Particles impinge on the detector over a wide range of angles, from normal incidence at 90 degrees down to 11.5 degrees, which defines a geometry that is fairly unique among calorimeters. The response of the calorimeter has been measured during a running experiment and performs as expected for electromagnetic showers below 2.5 GeV. We characterize the performance of the BCAL using the energy resolution integrated over typical angular distributions for pi(0) and eta production of sigma(E)/E = 5.2%/root E (GeV) circle plus 3.6% and a timing resolution of sigma = 150 ps at 1 GeV.

引用

页码：24 / 42

页数：19

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