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The impact of neutr...
The impact of neutron emission on correlated fission data from the 2E-2v method
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- Jansson, Kaj, 1987- (författare)
- Uppsala universitet,Tillämpad kärnfysik
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- Al-Adili, Ali (författare)
- Uppsala universitet,Tillämpad kärnfysik
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- Andersson Sundén, Erik (författare)
- Uppsala universitet,Tillämpad kärnfysik
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- Göök, A. (författare)
- European Commission, Joint Research Centre, Directorate G, Geel, Belgium
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- Stephan, Oberstedt (författare)
- European Commission, Joint Research Centre, Directorate G, Geel, Belgium
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- Pomp, Stephan, 1968- (författare)
- Uppsala universitet,Tillämpad kärnfysik
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(creator_code:org_t)
- 2018-06-29
- 2018
- Engelska.
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Ingår i: European Physical Journal A. - : Springer Science and Business Media LLC. - 1434-6001 .- 1434-601X. ; 54
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The double-energy double-velocity (2E-2v) method allows assessing fission-fragment mass yields prior to and after prompt neutron emission with high resolution. It is, therefore, considered as a complementary technique to assess average prompt neutron multiplicity as a function of fragment properties. We have studied the intrinsic features of the 2E-2v method by means of event-wise generated fission-fragment data and found short-comings in the method itself as well as in some common practices of application. We find that the 2E-2v method leads to large deviations in the correlation between the prompt neutron multiplicity and pre-neutron mass, which deforms and exaggerates the so-called “sawtooth” shape of nubar(A). We have identified the treatment of prompt neutron emission from the fragments as the origin of the problem. The intrinsic nature of this deficiency risks to render 2E-2v experiments less interesting. We suggest a method to correct 2E-2v data that can even be applied on existing measurements.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- fission
- 2E-2v
- neutron
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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