| Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1994: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1993: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Research Abstract |
Measurement and analysis of reaction rate of resonance nuclides have been carried out. In the experiments, several resonance nuclides were used ; for example, some laminated gold foils which were composed of 10 or 20 sheets of 0.02-mm-thick gold foil were irradiated in a graphite pile and a reactor, and reaction rate distribution insaide a gold foil were measured. Some of them were cpvered with silver or tantalum whose resonance energy was very close to that of gold, and the effect of resonance overlapping was investigated. Those data were analyzed with several calculation method ; the ultra-fine energy group method, the multi-group method, and the multi-band method, and those results were compared. It was difficult to calculate accurately the reaction rate distribution inside resonance nuclide by the multi-group method even with fine energy groups. On the other hand, the multi-band method gave fairly accurate results even with coarse band, however, it was difficult to calculate accurately the effect of resonance overlapping effect.
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