ZnO crystal as a potential damage-recoverable window material for fusion reactors

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18304
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear fusion studies
• Research Institution: Osaka University
• Principal Investigator: Yamanoi Kohei 大阪大学, レーザー科学研究所, 助教 (30722813)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 放射線損傷 / 光学材料 / 核融合 / 原子炉

Outline of Final Research Achievements

In nuclear reactors, space, and other scientific activities involving high-energy radiation such as gamma-ray, long-term exposure can produce serious radiation effects leading to the rapid deterioration of optical components. In optical glasses, high radiation doses create discoloration. Therefore, monitoring the optical performance of window materials can help mitigate potential damage. In this project, we investigate the effects of gamma-ray irradiation
and ion bombardments on the transmission and refractive index of ZnO crystal and sapphire . We also report a new method based on two right angle prism configuration and imaging spectrometer to measure the changes of refractive index before and after irradiation of a sample material.

Free Research Field

材料分析