Multi-strip MRPCs for FOPI
| Data(s) |
2009
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|---|---|
| Resumo |
During the last years FOPI has developed a new ToF system as an upgrade of the existing detector based on Multi-strip Multi-gap Resistive Plate Chambers (MMRPCs). The intention is to increase the charged Kaon identification up to a laboratory momentum of 1 GeV/c and to enhance the azimuthal detector granularity. The new ToF barrel has an active area of 5 m(2) with 2400 individual strips (900 x 1.6 mm(2)) [A. Schuttauf, et al., Nucl. Phys. B 158 (2006) 52] which are read out on both sides by a custom designed electronics [M. Ciobanu, et al., IEEE Trans. Nucl. Sci. NS-54 (4) (2007) 1201; K. Koch, et al., IEEE Trans. Nucl. Sci. NS-52(3) (2005) 745]. To reach the envisaged goal a time resolution of 100 ps is needed, at a flight path of 1-1.3 m. Due to the rare production of the K- at SIS energies the efficiency of the MMRPCs has to be above 95%. We report on measurements with the detectors and electronics from the mass production line. For this purpose we used a proton beam at 2.0 and 1.25 GeV, at rates between 0.1 and 5 kHz/cm(2) to determine the timing, efficiency and rate capability of the MMRPCs |
| Identificador | |
| Idioma(s) |
英语 |
| Fonte |
Schuttauf, A (Schuettauf, A.); Ciobanu, M (Ciobanu, M.); Hildenbrand, KD (Hildenbrand, K. D.); Kis, M (Kis, M.); Deppner, I (Deppner, I.); Herrmann, N (Herrmann, N.); Kim, YJ (Kim, Y. J.); Kang, TI (Kang, T. I.); Koczon, P (Koczon, P.); Lopez, X (Lopez, X.); Leifels, Y (Leifels, Y.); Petrovici, M (Petrovici, M.); Piasecki, K (Piasecki, K.); Reischl, A (Reischl, A.); Reisdorf, W (Reisdorf, W.); Ryu, MS (Ryu, M. S.); Simion, V (Simion, V.); Zernezki, N (Zernezki, N.); Zhang, X (Zhang, X.).Multi-strip MRPCs for FOPI,NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2009,602(3 ):679-681 |
| Palavras-Chave | #FOPI #Timing RPCs #Segmented-anode MRPC #MMRPCs #Front-End-Electronics #Time resolution #Rate effects #Efficiency |
| Tipo |
期刊论文 |
