| Budget Amount *help |
¥45,240,000 (Direct Cost: ¥34,800,000、Indirect Cost: ¥10,440,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000)
Fiscal Year 2017: ¥22,230,000 (Direct Cost: ¥17,100,000、Indirect Cost: ¥5,130,000)
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| Outline of Final Research Achievements |
In order to study the properties of heavy short-lived nuclei more precisely, we have successfully developed the following three items; (1) laser system and related equipment for the precise laser resonance ionization spectroscopy of the short-lived nuclei which are in the gas-jet with good directivity, (2) 3 dimensional-tracking-type multi-segmented proportional gas counter with high detection efficiency and low background rate to detect the electrons emitted from rare short-lived nuclei for the precise nuclear decay spectroscopy, (3) install and operation of multi-reflection time of flight mass-spectrograph in order to measure the nuclear mass with one millionth precision. By using the equipment, we could successfully measure the nuclear half-lives and masses of rare heavy nuclei produced at the KISS (KEK isotope separation system) facility.
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