Development of a cylindrical tracking detector with multichannel scintillation fibers and pixelated photon detector readout
Development of a cylindrical tracking detector with multichannel scintillation fibers and pixelated photon detector readout
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开发具有多通道闪烁光纤和像素化光子探测器读数的圆柱形跟踪探测器
DOI：
10.1016/j.nima.2014.11.102
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
N.Chiga
中科院分区：
文献类型：
--
作者：
Y.Akazawa;K.Miwa;R.Honda;T.Shiozaki;N.Chiga
我们正在开发一个圆柱形的跟踪探测器，用于在J-PARC与闪烁光纤和像素化光子探测器（PPD）读出的光子散射实验，这被称为圆柱形光纤跟踪器（CFT），以重建CFT内发射的带电粒子的轨迹。CFT不仅作为跟踪探测器，而且作为能量沉积的粒子识别探测器。构造了由两个直层和一个螺旋层组成的原型CFT。使用约1100根直径为0.75 mm的闪烁纤维（Kuraray SCSF-78 M）。通过多像素光子计数器（MPPC，HPK S10362-11- 050 P，1×1 mm 2，400像素）逐根光纤读取每根光纤信号。MPPC使用扩展型Analog硅光电倍增管集成读出芯片（EASIROC）板进行处理，该板是为读出大量MPPC而开发的。对于70 MeV的质子，一层的能量分辨率为28%，其中纤维中的能量存款为0.7 MeV。
We are developing a cylindrical tracking detector for aΣpscattering experiment in J-PARC with scintillation fibers and the Pixelated Photon Detector (PPD) readout, which is called as cylindrical fiber tracker (CFT), in order to reconstruct trajectories of charged particles emitted inside CFT. CFT works not only as a tracking detector but also a particle identification detector from energy deposits. A prototype CFT consisting of two straight layers and one spiral layer was constructed. About 1100 scintillation fibers with a diameter of 0.75 mm (Kuraray SCSF-78 M) were used. Each fiber signal was read by Multi-Pixel Photon Counter (MPPC, HPK S10362-11-050P, 1×1 mm2, 400 pixels) fiber by fiber. MPPCs were handled with Extended Analogue Silicon Photomultipliers Integrated ReadOut Chip (EASIROC) boards, which were developed for the readout of a large number of MPPCs. The energy resolution of one layer was 28% for a 70 MeV proton where the energy deposit in fibers was 0.7 MeV.