| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
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| Outline of Final Research Achievements |
A non-destructive elemental-analysis technique for three-dimensional structures in biological samples with nanometer resolution has been developed. Elastic recoil detection (ERD) and Rutherford backscattering (RBS) were used simultaneously for the measurement. ERD and RBS are sensitive to light and heavy elements, respectively. Therefore, both major light elements and trace amounts of heavy elements in biological samples can be detected high sensitivity. To obtain high depth resolution, time-of-flight was used to measure the energy of scattered ions. The elemental distribution can be measured non-destructively in a short measurement time of approximately one hour by using multiple detectors.
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