International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2012)

Development of neutron two-dimensional position detector systems by using MPPC

4 Sept 2012, 15:20

1h

Hotel Listel Inawashiro, Inawashiro, Japan

POSTER Pixel technologies - Hybrid pixels Poster session

Speaker

Mr Setsuo Satoh (KEK)

Description

KEK KENS-DAQ group is developing several neutron detectors and readout systems. 2 systems are developed by using a ZnS/6LiF neutron scintillator and MPPC (Multi Pixel Photon Counter: a semiconductor light sensor). One is named M-PSD (MPPC position-sensitive detector) which uses charge-division method like the 3He-PSD [1,2]. Therefore a NEUNET (neutron network) system [1] which is widely used in the J-PARC (Japan Proton Accelerator Research Complex) can be used for its readout system. A 2-dimensional detector which consists of 21 M-PSD boards at intervals of 5 mm. The detection area of the detector is 128 × 105 mm2. Each board has 32 MPPCs at intervals of 4 mm, and the spatial resolution is about 1mm. The other is named MHPD (MPPC high count pixel detector) which processes data at each MPPC independently to obtain high count rate. We will present the latest development of the detector systems. References [1] S. Satoh, S. Muto, N. Kaneko, T. Uchida, M. Tanaka, Y. Yasu, K. Nakayoshi, E. Inoue, H. Sendai, T. Nakatani, and T. Otomo, NIM A 600(2009)103-106. [2] S. Satoh, T. Ino, and M. Furusaka, Y. Kiyanagi, N. Sakamoto, K. Sakai, NIMA529(2004) 421-424.