| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| 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.
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