STI Publications - View Publication Form #16190
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Publication Information
| Title | The CLAS12 Low Threshold Cherenkov Detector | ||||
| Abstract | The CLAS Cherenkov threshold gas detector was instrumental for electron identification in the Hall B 6 GeV era at Jefferson Lab. The detector's scope has been modified for the new CLAS12 spectrometer to identify ?+ and ?? for momenta greater than 3.5 GeV, thus becoming a Low Threshold Cherenkov Counter (LTCC). This was accomplished with a refurbishment of the gas container, its windows, mirrors, Winston light collecting cones, and photomultipliers. The design, construction, and performance of the refurbished LTCC are described. The lightweight mirrors and Winston cones have been re-surfaced with a highly reflective coating, the 5-in photomultiplier tube entrance windows have been treated with p-terphenyl to enhance the ultraviolet response, and the gas volume has been expanded to increase the thickness of the radiator gas and correspondingly the number of photoelectrons in the response signal. The LTCC response calibration has been performed on the single photoelectron signals, and the | ||||
| Author(s) | Maurizio Ungaro, David Anderson, Gegham Asryan, Mary Ann Antonioli, Peter Bonneau, Volker Burkert, Steve Christo, Morgan Cook IV, Burcu Duran, Brian Eng, Amanda Hoebel, Denny Insley, George Jacobs, Sylvester Joosten, Mindy Leffel, Tyler Lemon, Marc Mcmullen, Zein-Eddine Meziani, Bob Miller, Pablo Campero Rojas, Youri Sharabian, Amrit Yegneswaran | ||||
| Publication Date | March 2020 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall B | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | Yes | ||||
| Experiment Number(s) |
E12-19-003
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| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Nuclear Instruments & Methods in Physics Research, Section A |
| Refereed | Yes |
| Volume | 957 |
| Issue | |
| Page(s) | 163420 |
Attachments/Datasets/DOI Link
| Document(s) |
ltcc1.pdf
(STI Document)
|
| DOI Link | |
| Dataset(s) | (none) |
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