BES ETOF BES TOF Muon Pi electron Barrel
① BESⅢ E-TOF升级方案介绍 BESⅢ TOF设计指标和目前的性能指标 Muon Pi electron Barrel : Design / Current 90 ps / 76 ps 105 ps / 90 ps ?/ 79 ps Endcap : Design / Current 110 ps / 96 ps 138 ps / 131 ps ?/ 136 ps 桶部TOF的性能是世界上同类TOF探测器中性能最好的TOF,端盖TOF较大的升级空间 ! 性能指标:MRPC本征时间分辨< 50 ps
② 束流实验用T 0系统介绍-- --BESⅢ-TOF-R&D-beam test T 0系统 • PMT:H 6533; • Scintillator:BC 420; • QDC: 2249 A(250 p. C); • TDC: 2229(250 ps); • Time Resolution; 76 ps
② 束流实验用T 0系统介绍-- --MICE upstream time-of-flight system linear focussed PMTs R 4998, typical gain G ∼ 5. 7× 106 at B=0 Gauss, risetime 0. 7 ns, TTS ∼ 160 ps, equipped with active/passive divider 。 a mu-metal shield extending 3 cm in front of the photocathode (H 6533 assemblies) • PMT:H 6533; • Scintillator:BC 420; • QDC:V 1724 (Flash ADC); • TDC:V 1290 (25 ps); • Time Resolution 45 ps; Copy from:《The design and commissioning of the MICE upstream time-of-flight system》-- INFN/AE-10/1 ,22 Gennaio 2010
① 宇宙线测试结果 • PMT:H 6533; • Scintillator:BC 420; • QDC:V 965 (25 f. C); • TDC:V 1290 (25 ps); • Time Resolution: 41. 6 ps
The End! Thanks for your attention!
H 6533
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