A compensated multi-gap RPC with 2 m strips for the LEPS2 experiment
A compensated multi-gap RPC with 2 m strips for the LEPS2 experiment
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用于 LEPS2 实验的带 2 m 条带的补偿多间隙 RPC
DOI：
10.1016/j.nima.2019.02.014
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Yosoi M.
中科院分区：
文献类型：
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作者：
Watanabe K.;Tanaka S.;Chang W.C.;Chen H.;Chu M.L.;Cuenca-Garcia J.J.;Gogami T.;Gonzalez-Diaz D.;Niiyama M.;Ohashi Y.;Ohnishi H.;Tomida N.;Yosoi M.
我们为 SPring-8 的 LEPS2 实验的飞行时间 (TOF) 探测器系统开发了带有 2.5 x 200 cm2 读出条的多间隙电阻板室 (MRPC)。这些室由 2 个堆叠组成，每个堆叠有 5 个气隙，采用镜像配置。对于条带内的任何位置都实现了 sigma ~ 80 ps 的时间分辨率（检测效率高于 99%）；执行时间充电转换校正后，该值可降低至 60 ps。可以建立回转校正对定时的小贡献与检测器中模态色散的抑制之间的联系。
We have developed multi-gap resistive plate chambers (MRPCs) with 2.5 x 200 cm2 readout strips for the time-of-flight (TOF) detector system of the LEPS2 experiment at SPring-8. These chambers consist of 2 stacks and 5 gas gaps per stack, in a mirrored configuration. A time resolution of sigma ~ 80 ps was achieved for any position within a strip (at above 99% detection efficiency); after performing the time-charge slewing correction, this value could be reduced to 60 ps. A link between the small contribution of the slewing correction to timing and the suppression of modal dispersion in the detector could be established.