| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
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| Outline of Final Research Achievements |
In order to obtain information on the chemical state of tracer mass materials, we aimed to develop a new analytical method using the variation of nuclear half-life. For this purpose, a series of studies were conducted from the development of production methods for technetium, chromium, and manganese radioactive tracers to the precise measurement of their half-lives. For chromium and manganese radioactive tracers, we were able to develop separation methods without the addition of carriers. Excitation functions of manganese were also measured. For technetium and chromium, variation of their chemical states could be detected by changes in their nuclear half-lives.
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