Time and position resolution of high granularity, high counting rate MRPC for the inner zone of the CBM-TOF wall
| Autor: | Petriş, M., Bartoş, D., Caragheorgheopol, G., Deppner, I., Frühauf, J., Herrmann, N., Kiš, M., Loizeau, P-A., Petrovici, M., Rǎdulescu, L., Simion, V., Simon, C. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1748-0221/11/09/C09009 |
| Popis: | Multi-gap RPC prototypes with readout on a multi-strip electrode were developed for the small polar angle region of the CBM-TOF subdetector, the most demanding zone in terms of granularity and counting rate. The prototypes are based on low resistivity ($\sim$10$^{10}$ $\Omega$cm) glass electrodes for performing in high counting rate environment. The strip width/pitch size was chosen such to fulfill the impedance matching with the front-end electronics and the granularity requirements of the innermost zone of the CBM-TOF wall. The in-beam tests using secondary particles produced in heavy ion collisions on a Pb target at SIS18 - GSI Darmstadt and SPS - CERN were focused on the performance of the prototype in conditions similar to the ones expected at SIS100/FAIR. An efficiency larger than 98\% and a system time resolution in the order of 70~-~80~ps were obtained in high counting rate and high multiplicity environment. Comment: 8 pages, 13 figures |
| Databáze: | arXiv |
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