TY - JOUR

T1 - DELAYED NEUTRON YIELD CALCULATIONS FOR THE NEUTRON-INDUCED FISSION OF URANIUM-235 AS A FUNCTION OF THE INCIDENT NEUTRON ENERGY.

AU - Alexander, D. R.

AU - Krick, M. S.

PY - 1977

Y1 - 1977

N2 - The total delayed neutron yield from **2**3**5U was calculated as a function of the energy of the neutron inducing fission. The calculations (based on fission data and fission systematics) extend from thermal to 15-MeV neutron energies. The energy-dependent delayed neutron calculations are generally consistent with experimental results from thermal to 14-MeV neutron energies. Delayed neutron yields per 10**4 fissions of 168. 7 plus or minus 16. 7, 178. 2 plus or minus 17. 2, and 88. 9 plus or minus 10. 0 were obtained at thermal, fission-spectrum, and 15-MeV neutron energies, respectively. The energy dependence of the odd-even effect in the fission charge distribution is found to partially account for the near constant yield observed below 5-MeV neutron energy, as well as the rapid decrease in yield observed at the second-change fission threshold.

AB - The total delayed neutron yield from **2**3**5U was calculated as a function of the energy of the neutron inducing fission. The calculations (based on fission data and fission systematics) extend from thermal to 15-MeV neutron energies. The energy-dependent delayed neutron calculations are generally consistent with experimental results from thermal to 14-MeV neutron energies. Delayed neutron yields per 10**4 fissions of 168. 7 plus or minus 16. 7, 178. 2 plus or minus 17. 2, and 88. 9 plus or minus 10. 0 were obtained at thermal, fission-spectrum, and 15-MeV neutron energies, respectively. The energy dependence of the odd-even effect in the fission charge distribution is found to partially account for the near constant yield observed below 5-MeV neutron energy, as well as the rapid decrease in yield observed at the second-change fission threshold.

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U2 - 10.13182/NSE77-A15206

DO - 10.13182/NSE77-A15206

M3 - Article

AN - SCOPUS:0017478854

VL - 62

SP - 627

EP - 635

JO - Nuclear Science and Engineering

JF - Nuclear Science and Engineering

SN - 0029-5639

IS - 4

ER -