The cylindrical gem inner tracker of the besiii experiment: prototype test beam results
文献类型：期刊论文
| 作者 | Lavezzi, L.1,6; Alexeev, M.6; Amoroso, A.6,11; Ferroli, R. Baldini1,3; Bertani, M.3; Bettoni, D.2; Bianchi, F.6,11; Calcaterra, A.3; Canale, N.2; Capodiferro, M.3,5 |
| 刊名 | Journal of instrumentation
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 12页码:8 |
| 关键词 | Micropattern gaseous detectors (msgc, gem, thgem, rethgem, mhsp, micropic Micromegas, ingrid, etc) Particle tracking detectors (gaseous detectors) |
| ISSN号 | 1748-0221 |
| DOI | 10.1088/1748-0221/12/07/c07038 |
| 通讯作者 | Lavezzi, l.(lia.lavezzi@to.infn.it) |
| 英文摘要 | A cylindrical gem detector is under development, to serve as an upgraded inner tracker at the besiii spectrometer. it will consist of three layers of cylindrically-shaped triple gems surrounding the interaction point. the experiment is taking data at the e(+)e(-) collider bepcii in beijing (china) and the gem tracker will be installed in 2018. tests on the performances of triple gems in strong magnetic field have been run by means of the muon beam available in the h4 line of sps (cern) with both planar chambers and the first cylindrical prototype. efficiencies and resolutions have been evaluated using different gains, gas mixtures, with and without magnetic field. the obtained efficiency is 97-98% on single coordinate view, in many operational arrangements. the spatial resolution for planar gems has been evaluated with two different algorithms for the position determination: the charge centroid and the micro time projection chamber (mu-tpc) methods. the two modes are complementary and are able to cope with the asymmetry of the electron avalanche when running in magnetic field, and with non-orthogonal incident tracks. with the charge centroid, a resolution lower than 100 mu m has been reached without magnetic field and lower than 200 mu m with a magnetic field up to 1 t. the mu-tpc mode showed to be able to improve those results. in the first beam test with the cylindrical prototype, the detector had a very good stability under different voltage configurations and particle intensities. the resolution evaluation is in progress. |
| WOS研究方向 | Instruments & Instrumentation |
| WOS类目 | Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000406420100038 |
| 出版者 | IOP PUBLISHING LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176940 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Lavezzi, L. |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, 19B YuquanLu, Beijing 100049, Peoples R China 2.Ist Nazl Fis Nucl, Sez Ferrara, Via G Saragat 1, I-44122 Ferrara, Italy 3.Ist Nazl Fis Nucl, Lab Nazl Frascati, Via E Fermi 40, I-00044 Frascati, Roma, Italy 4.Ist Nazl Fis Nucl, Sez Perugia, Via A Pascoli 14, I-06123 Perugia, Italy 5.Univ Roma La Sapienza, Ist Nazl Fis Nucl, Sez Roma, Ple A Moro 2, I-00185 Rome, Italy 6.Ist Nazl Fis Nucl, Sez Torino, Via P Giuria 1, I-10125 Turin, Italy 7.Joint Inst Nucl Res, Joliot Curie 6, Dubna 141980, Moscow Region, Russia 8.Politecn Torino, Dipartimento Elettron & Telecomunicaz, Corso Duca Abruzzi 24, I-10129 Turin, Italy 9.Univ Ferrara, Dipartimento Fis, Via G Saragat 1, I-44122 Ferrara, Italy 10.Univ Perugia, Dipartimento Fis & Geol, Via A Pascoli 14, I-06123 Perugia, Italy |
| 推荐引用方式 GB/T 7714 | Lavezzi, L.,Alexeev, M.,Amoroso, A.,et al. The cylindrical gem inner tracker of the besiii experiment: prototype test beam results[J]. Journal of instrumentation,2017,12:8. |
| APA | Lavezzi, L..,Alexeev, M..,Amoroso, A..,Ferroli, R. Baldini.,Bertani, M..,...&Yan, L..(2017).The cylindrical gem inner tracker of the besiii experiment: prototype test beam results.Journal of instrumentation,12,8. |
| MLA | Lavezzi, L.,et al."The cylindrical gem inner tracker of the besiii experiment: prototype test beam results".Journal of instrumentation 12(2017):8. |
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