Detection of neutrons produced by laser induced proton

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420915
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: OGURA Koichi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究副主幹 (30354971)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 高強度レーザー / プロトン / 加速 / 中性子

Outline of Final Research Achievements

A neutron energy distribution is expected to provide information of a laser-driven proton energy during neutron generation with the laser-driven proton and neutron converter. In order to comparison, the neutrons were measured during laser-driven proton generation without neutron-converter. Laser protons were produced repeatedly and measured a neutron with a bubble detector which is sensitive only towards neutrons. The dose of the neutron was approximately 0.1Sv/shot. A time-of-flight-type neutron detector integrated with a the scintillator was used to detect the neutrons to determine the neutron energy. Furthermore, a neutron spectrum at the time of the neutron conversion was calculated. I will clarify the effectiveness as the proton energy measurement method.

Free Research Field

原子力