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Re-evaluation of th...
Re-evaluation of the thermal neutron capture cross section of Nd-147
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- Rochman, D. (författare)
- Paul Scherrer Inst, Reactor Phys & Syst Behav Lab, Villigen, Switzerland.
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- Leray, O. (författare)
- Paul Scherrer Inst, Reactor Phys & Syst Behav Lab, Villigen, Switzerland.
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- Perret, G. (författare)
- Paul Scherrer Inst, Reactor Phys & Syst Behav Lab, Villigen, Switzerland.
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- Vasiliev, A. (författare)
- Paul Scherrer Inst, Reactor Phys & Syst Behav Lab, Villigen, Switzerland.
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- Ferroukhi, H. (författare)
- Paul Scherrer Inst, Reactor Phys & Syst Behav Lab, Villigen, Switzerland.
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- Koning, Arjan J. (författare)
- Uppsala universitet,Tillämpad kärnfysik,IAEA, Nucl Data Sect, A-1400 Vienna, Austria.
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Paul Scherrer Inst, Reactor Phys & Syst Behav Lab, Villigen, Switzerland Tillämpad kärnfysik (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Annals of Nuclear Energy. - : Elsevier BV. - 0306-4549 .- 1873-2100. ; 94, s. 612-617
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this paper we are proposing a re-evaluation of the thermal-neutron induced capture cross section of Nd-147. A unique measurement exists from which this cross section was calculated in 1974. This original calculation is based on an assumed value for a specific gamma-ray fraction (called F-2), taken from the neighboring nucleus Nd-145. With the availability of reaction codes such as TALYS, such fraction can nowadays be calculated using specific reaction models and parameters. The new value of F-2 indicates a decrease of the thermal cross section by 45%, leading to 243 barns, instead of the 440 barns previously reported. This new cross section impacts the calculation of the number density for the well-known burn-up indicator Nd-148, but as shown, the change is close to the usual experimental uncertainties for the 148Nd number densities, thus having a limited impact on burn-up calculation.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- Nd147
- Burn-up indicator
- Capture cross section
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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