束流实验中不同尺寸塑料闪烁体的时间特性
속류실험중불동척촌소료섬삭체적시간특성
Timing Performance of Plastic Scintillators of Various Sizes in a Beam Test
  • 万方数据
    高能物理与核物理 고능물리여핵물리
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
    2006年 6期 554-558 ,共5页

    赵力%衡月昆%吴冲%赵小健%孙志嘉%吴金杰%蒋林立%赵玉达%王凤梅%王贻芳%张子平

    조력%형월곤%오충%조소건%손지가%오금걸%장림립%조옥체%왕봉매%왕이방%장자평

    时间分辨率%飞行时间%北京谱仪Ⅲ%闪烁体%蒙特卡罗 時間分辨率%飛行時間%北京譜儀Ⅲ%閃爍體%矇特卡囉
    시간분변솔%비행시간%북경보의Ⅲ%섬삭체%몽특잡라
    time resolution%time of flight%BESⅢ%scintillator%Monte Carlo
    北京谱仪(BESⅢ)中的飞行时间探测器将采用长2.3m宽6cm的长条形塑料闪烁体.利用北京高能物理研究所的实验束流对铝膜包装的不同厚度闪烁体的本征时间分辨进行了研究,给出了4cm,5cm和6cm闪烁体的时间分辨,而且用蒙特卡罗模拟做了比较,结果表明5cm厚的闪烁体具有最佳性能.
    북경보의(BESⅢ)중적비행시간탐측기장채용장2.3m관6cm적장조형소료섬삭체.이용북경고능물리연구소적실험속류대려막포장적불동후도섬삭체적본정시간분변진행료연구,급출료4cm,5cm화6cm섬삭체적시간분변,이차용몽특잡라모의주료비교,결과표명5cm후적섬삭체구유최가성능.
    The time-of-flight detector of the Beijing Spectrometer Ⅲ(BESⅢ) is built with long and narrow plastic scintillator bars, with each being 2.3m long and 6cm wide. The time resolution of prototypes wrapped with aluminum film has been studied for various thickness of the scintillator using a test beam at the Institute of High Energy Physics in Beijing, China. In this paper, the position-dependent time resolution of the scintillator with a thickness of 4cm, 5cm and 6cm is presented and compared with a Monte Carlo simulation, the results show that the bar with a thickness of 5cm has the best performance.
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