Publications
Publication Information
| Title | The CLAS12 High Threshold Cherenkov Counter |
| Authors | Y. Sharabian, Volker Burkert, A. Biselli, R. Badui, S. Christo, C. Cuevas, H. Dong, S. Danagoulian, A. Ellis, L. Elouadrhiri, B. Eng, K. Hafidi, I. Illari, G. Jacobs, J. Joo, K. Joo, D. Kashy, A. Kubarovsky, V. Kubarovsky, S. Maiylian, N. Markov, M. McClellan, M. McMullen, B. Miller, S. Miller-Smith, D. Nickolas, R. Niyazov, R. Paremuzyan, W. Phelps, V. Popov, J. Price, A. Puckett, B. Raydo, D. Riser, P. Stoler, A. Vlassov, A. Voskanyan |
| JLAB number | JLAB-PHY-20-2930 |
| LANL number | (None) |
| Other number | DOE/OR/23177-4864 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Nuclear Instruments & Methods in Physics Research, Section A Volume 968 Page(s) 163824 Refereed | |
| Publication Abstract: | Abstract The High Threshold Cherenkov Counter (HTCC) is one of the detector systems of the CLAS12 spectrometer, and is used to generate a fast trigger signal in electron scattering experiments in the polar angle range from 5° to 35°. The HTCC is installed in front of the drift chambers and introduces a minimal amount of additional material within the acceptance. The HTCC is one unit whose core component is a multifocal mirror that consists of 60 lightweight ellipsoidal mirrors. It is important that the HTCC provides efficient coverage of the CLAS12 forward acceptance with no gaps. In order to achieve this, each sector of the CLAS12 Forward Detector is covered by 2 identical half-sector mirrors that focus Cherenkov light on 8 phototubes. The HTCC has a total of 48 channels with Electron Tubes 9823QKB photomultipliers that have a 5-in quartz face plate to detect Cherenkov light. The system provides rejection of charged n-mesons with momenta below 4.8 GeV for the reliable identification of scattered electrons. In this paper the details of the design, construction, calibration, and performance results of the HTCC are presented. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1016/j.nima.2020.163824 |
| Accepted Manuscript: | HTCC_PDF_Dec_09_2019.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |