Development of a high-resolution TOF counter using a MPPC array for strange-dibaryon searches

2015 Fiscal Year Final Research Report

• Project/Area Number: 26800158
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: Sakuma Fuminori 国立研究開発法人理化学研究所, 仁科加速器研究センター, 専任研究員 (10455347)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: MPPC / 高時間分解能 / TOF / K中間子原子核

Outline of Final Research Achievements

We developed a cost-effective and robust high-resolution Time-of-Flight detector with Multi-Pixel Photon Counters (MPPCs), which is used for "kaonic nuclear states search experiments" and "S=-2 di-baryon search experiments" at J-PARC. In this work, we developed and established a high-resolution detector with time resolution of less than 100 ps by using series-connected 3 MPPCs read-out on both sides of a plastic scintillator slab. Usage of such the high-resolution detector with cost-effectiveness and robustness becomes increasingly important in the field of nuclear experiments at J-PARC and RIBF.

Free Research Field

高エネルギー原子核実験