Review of thorium-U233 cycle thermal reactor benchmark studies (AWBA Development Program)

Ullo, J.J.; Hardy, J.; Steen, N.M.

doi:10.2172/5506237

Cited by 3 publications

(3 citation statements)

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“…Calculations of the epithermal vs. thermal capture ratio using ENDF/B-IV resulted in substantially lower values than experimentally observed (Ullo et al 33 ). New measurements of the 232 Th resonances below 100 eV by Chrien et al 32 resulted in resonance parameters (E o ,r n ,r.y.)…”

Section: U Capturementioning

confidence: 73%

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Review of the neutron capture process in fission reactors

Poenitz¹

1981

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The importance of the neutron capture process and the status of the more important cross section data are revieved. The capture in fertile and fissile nuclei is considered. For thermal reactors the thermal to epithermal capture ratio for 238 U and 232 Th remains a problem though some improvements were made with more recent measurements. The capture cross section of 238 U in the fast energy range remains quite uncertain and a long standing discrepancy for the calculated versus experimental central reaction rate ratio C28/F49 persists. Capture in structural materials, fission product nuclei and the higher actinides is also considered.

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Section: U Capturementioning

confidence: 73%

“…Agreement is rather good between the differently evaluated values. The rather large uncertainty for 233 U ^s no^ detrimental for neutronic calculations as the sensitivities of k e f£ to cross section changes are low (Ullo et al 33 ).…”

Section: Fissile Nuclei 239p U> 235u Andmentioning

confidence: 99%

Review of the neutron capture process in fission reactors

Poenitz¹

1981

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“…The scatter in values of keff calculated for these experiments is also found in calculations by others in which the subcritical lattices actually investigated are modeled and the axial inleakage of source neutrons is incorporated. Figure 13 displays the results of calculations by Ullo, Hardy and Steen (25) of BAPL. Two sets of points are plotted.…”

mentioning

confidence: 99%

Neutronic experiment planning for the Fuels Refabrication and Development Program

Gore¹,

NcNeese²,

Zimmerman³

et al. 1979

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Evaluations of facility capabilities and estimates of costs of required modification and experimentation were prepared by George Konzek for the PRCF and by Ray Lloyd for the CML. Their contributions are greatly appreciated. Our contacts at BAPL, Ken Richardson and Ray Davis, were most responsive to our incessant questions and suggestions. We were able to establish a very effective, highly informal relationship which was most cordial. We look forward to working with them again, should the occasion arise. iii , ..- .

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1984

Neutron Radiative Capture

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Review of thorium-U233 cycle thermal reactor benchmark studies (AWBA Development Program)

Cited by 3 publications

References 0 publications

Review of the neutron capture process in fission reactors

Review of the neutron capture process in fission reactors

Neutronic experiment planning for the Fuels Refabrication and Development Program

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