抄録
This work presented a methodology in evaluating the energy unit from the energy required for photodissociation and the energy efficiency of the reactor in infrared laser isotope separation. The photon energy for producing 1 mol of the product was obtained from the absorption constant and the dissociation probability. The value of that photon energy in the case of infrared multiphoton dissociation of UF6 for a typical enrichment condition of uranium (3% enrichment and 0.2% depletion) has been estimated to be about seven times as large as the U-F bond energy. The energy efficiency of the photodissociation reactor was dependent on the axial distribution of the fluence. Estimation of the efficiency of a uranium isotope separation reactor has shown that an irradiation geometry where two beams with the same fluence irradiate in directions counter to each other gave a higher value of efficiency than did an irradiation geometry with one combined beam. The value of the reactor efficiency obtained in the former irradiation geometry for uranium enrichment (3% enrichment and 0.2% depletion) was 0.63.
