Characteristics of S12045(X) photon sensors for GlueX

Conference · Mon Apr 01 00:00:00 EDT 2013

OSTI ID:1992344

Smith, E.S. ^[1]; Qiang, Y. ^[1]; Tolstukhin, I. ^[1]; Brooks, W.K.; Hakobyan, H.; Kuleshov, S.; Soto, O.; Toro, A.

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

The barrel calorimeter of the GlueX detector in Hall D at Jefferson Lab will be instrumented with 4000 large-area (1.2×1.2 cm2) silicon photomultipliers (SiPMs) [1]. These photon sensors have properties similar to vacuum photomultipliers, but are unaffected by high magnetic fields. In our experiment, they will operate in magnetic fields exceeding 1\,T. After extensive tests with a variety of sensors, we chose the S12045(X) custom SiPM arrays manufactured by Hamamatsu Corporation, also known as multi-pixel photon counters (MPPCs) [2]. All production units have been delivered and we have measured the photon detection efficiency (PDE), gain, dark rate, cross talk and after pulsing at three different temperatures (5, 7 and {20?C}). We will present a summary of these measurements and the plan for use of these sensors in the GlueX experiment.\\[4pt] [1] F. Barbosa {\em et al.,} NIM A695 (2012) 100.\\[0pt] [2] Y. Qiang {\em et al.,} NIM A698 (2013) 234.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1992344
• Report Number(s): JLAB-PHY-13-1889; DOE/OR/23177-6793
• Country of Publication: United States
• Language: English