| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Outline of Final Research Achievements |
Severe structural damage which is not attributed to self-radiation due to radioactive elements was observed in natural Cr+V-bearing clinozoisite. To investigate this phenomenon polarized Raman spectroscopy was applied in this study. This phenomenon is understood as "the fragmentation of the crystalline matter preserving the original atomic arrangement into crystalline nano regions with the non-crystalline boundary". The cause of this phenomenon is that the orientational disorder of the OH group is strongly promoted when the M3 octahedron is partially occupied by V(+Cr), and as a result, the linkages between the structural units are disturbed, leading to the periodicity fault and size reduction of coherent structural domains.
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