Development of new neutrino detector using SOI technology

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K14739
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
• Research Institution: Kyoto University
• Principal Investigator: Kikawa Tatsuya 京都大学, 理学研究科, 助教 (60823408)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: SOI検出器 / ニュートリノ検出器

Outline of Final Research Achievements

The purpose of this research is to develop a new neutrino detector using SOI (Silicon-On-Insulator) technologies and establish a foundation to measure neutrino interactions precisely and discover the CP violation in neutrinos.
In order to detect the scintillation light from neutrino detectors, we developed a new SOI detector which is specialized in the visible light detection. We succeeded to observe the light from LED. However, it was hard to detect the scintillation light. As a result, we concluded that a signal multiplication by operating the sensor part as an avalanche photodiode (APD) is essential for the practical application.

Free Research Field

素粒子物理学(実験)

Academic Significance and Societal Importance of the Research Achievements

これまでのSOI検出器の用途はX線イメージングが主であり、可視光の検出能力は実証されているものの、シンチレーション光検出の用途で実用を試みるのはおそらく初めてである。シンチレーション光の検出能力の実証には至らなかったのもの、SOI検出器の可視光検出への応用に向けた第一歩となる。