dorsal/arxiv
View SchemaStudies of Proximity Focusing RICH with an aerogel radiator using Flat-panel multi-anode PMTs (Hamamatsu H8500)
| Authors | T. Matsumoto, S. Korpar, I. Adachi, S. Fratina, T. Iijima, R. Ishibashi, H. Kawai, P. Krizan, S. Ogawa, R. Pestotnik, S. Saitoh, T. Seki, T. Sumiyoshi, K. Suzuki, T. Tabata, Y. Uchida, Y. Unno |
|---|---|
| Categories | |
| ArXiv ID | physics/0309032 |
| URL | https://arxiv.org/abs/physics/0309032 |
| DOI | 10.1016/j.nima.2003.11.384 |
| Journal | Nucl.Instrum.Meth. A521 (2004) 367-377 |
Abstract
A proximity focusing ring imaging Cherenkov detector using aerogel as the radiator has been studied for an upgrade of the Belle detector at the KEK-B-factory. We constructed a prototype Cherenkov counter using a 4 x 4 array of 64-channel flat-panel multi-anode PMTs (Hamamatsu H8500) with a large effective area. The aerogel samples were made with a new technique to obtain a higher transmission length at a high refractive index (n=1.05). Multi-channel PMTs are read-out with analog memory chips. The detector was tested at the KEK-PS pi2 beam line in November, 2002. To evaluate systematically the performance of the detector, tests were carried out with various aerogel samples using pion beams with momenta between 0.5 GeV/c and 4 GeV/c. The typical angular resolution was around 14 mrad, and the average number of detected photoelectrons was around 6. We expect that pions and kaons can be separated at a 4 sigma level at 4 GeV/c.
{
"annotation_id": "cf9d6344-b92e-4037-88fe-de4e80fdd897",
"date_created": "2026-03-02T18:00:46.546000Z",
"date_modified": "2026-03-02T18:00:46.546000Z",
"file_hash": "28c64b8f15624102f677061c885046157b98ecd045ab87a74ba3a82fa83f9240",
"private": false,
"record": {
"abstract": "A proximity focusing ring imaging Cherenkov detector using aerogel as the\nradiator has been studied for an upgrade of the Belle detector at the\nKEK-B-factory. We constructed a prototype Cherenkov counter using a 4 x 4 array\nof 64-channel flat-panel multi-anode PMTs (Hamamatsu H8500) with a large\neffective area. The aerogel samples were made with a new technique to obtain a\nhigher transmission length at a high refractive index (n=1.05). Multi-channel\nPMTs are read-out with analog memory chips. The detector was tested at the\nKEK-PS pi2 beam line in November, 2002. To evaluate systematically the\nperformance of the detector, tests were carried out with various aerogel\nsamples using pion beams with momenta between 0.5 GeV/c and 4 GeV/c. The\ntypical angular resolution was around 14 mrad, and the average number of\ndetected photoelectrons was around 6. We expect that pions and kaons can be\nseparated at a 4 sigma level at 4 GeV/c.",
"arxiv_id": "physics/0309032",
"authors": [
"T. Matsumoto",
"S. Korpar",
"I. Adachi",
"S. Fratina",
"T. Iijima",
"R. Ishibashi",
"H. Kawai",
"P. Krizan",
"S. Ogawa",
"R. Pestotnik",
"S. Saitoh",
"T. Seki",
"T. Sumiyoshi",
"K. Suzuki",
"T. Tabata",
"Y. Uchida",
"Y. Unno"
],
"categories": [
"physics.ins-det"
],
"doi": "10.1016/j.nima.2003.11.384",
"journal_ref": "Nucl.Instrum.Meth. A521 (2004) 367-377",
"title": "Studies of Proximity Focusing RICH with an aerogel radiator using Flat-panel multi-anode PMTs (Hamamatsu H8500)",
"url": "https://arxiv.org/abs/physics/0309032"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "d5d4bb5f-7a1a-418b-a787-6c1c70f37c74",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}