Single photon detection with the multi-anode CLAS12 RICH detector
Journal Article
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· Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
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- Univ. of Ferrara (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy)
- Duquesne Univ., Pittsburgh, PA (United States)
- Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); Italian National Inst. of Health (Italy)
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Univ. of Connecticut, Storrs, CT (United States)
- National Inst. of Nuclear Physics (INFN), Frascati (Italy)
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Genova (Italy)
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); National Inst. of Nuclear Physics (INFN), Frascati (Italy)
- Univ. of Ferrara (Italy); National Inst. of Nuclear Physics (INFN), Frascati (Italy)
Recently, the first module of the hybrid-optics large-area CLAS12 RICH at JLab has been put into operation using for the first time the well known Hamamatsu H8500 MAPMT and the new single-photon dedicated H12700, for a total of about 400 MAPMTs and 25000 pixels. The photon detector must efficiently detect single photons in the visible and near-UV light region, provide a fast response for background rejection and pattern recognition, and have a spatial resolution of less than 1 cm over an area of ≈1 m2. Each front-end readout unit is composed of three electronic boards with specific tasks directly connected to groups of 2 or 3 sensors. The core of the readout is composed of MAROC3 and FPGA chips. The MAROC3 chip is able to discriminate the 64 signals from one MAPMT and to produce 64 corresponding binary outputs with 100% efficiency starting at a small fraction of the single-photon signal, while the FPGA chip provides 1 ns TDC capability with 8 μs maximum latency and acts as a DAQ controller. The system is created to be almost dead-time free at the foreseen 20 kHz CLAS12 trigger rate. The best working conditions for single-photon detection have been studied at laser stands, test beams, and with the JLab electron beam data. A report of the photon detector preparation, commissioning and operation is here discussed.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Grant/Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1582383
- Alternate ID(s):
- OSTI ID: 1636375
- Report Number(s):
- DOE/OR/23177--4891; JLAB-PHY--19-2925
- Journal Information:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: C Vol. 952; ISSN 0168-9002
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
The large-area hybrid-optics CLAS12 RICH detector: Tests of innovative components
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journal | December 2014 |
Tests of innovative photon detectors and integrated electronics for the large-area CLAS12 ring-imaging Cherenkov detector
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journal | July 2015 |
Investigation of Hamamatsu H8500 phototubes as single photon detectors
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journal | August 2015 |
The GlueX DIRC detector
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journal | December 2017 |
Design and R&D of RICH detectors for EIC experiments
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journal | December 2017 |
Modular focusing ring imaging Cherenkov detector for electron–ion collider experiments
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journal | November 2017 |
Precision analysis of the photomultiplier response to ultra low signals
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journal | November 2017 |
Test of the CLAS12 RICH large-scale prototype in the direct proximity focusing configuration
|
journal | February 2016 |
| The GlueX DIRC Program | text | January 2020 |
| Installation and Commissioning of the GlueX DIRC | preprint | January 2020 |
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