WFRF:(Kis S. A.)
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- Oberstedt, S. (author)
Correlation measurements of fission-fragment properties
- Article/chapterEnglish2010
Publisher, publication year, extent ...
- 2010-10-28
- EDP Sciences,2010
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:kth-287722
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-287722URI
- https://doi.org/10.1051/epjconf/20100803005DOI
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- Language:English
- Summary in:English
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- QC 20210113
- For the development of future nuclear fission applications and for a responsible handling of nuclear waste the a-priori assessment of the fission-fragments' heat production and toxicity is a fundamental necessity. The success of an indispensable modelling of the fission process strongly depends on a good understanding of the particular mechanism of scission, the mass fragmentation and partition of excitation energy. Experimental observables are fission-fragment properties like mass- and energy-distributions, and the prompt neutron as well as γ-ray multiplicities and emission spectra. The latter quantities should preferably be known as a function of fragment mass and excitation energy. Those data are highly demanded as published by the OECD-NEA in its high priority data request list. With the construction of the double (v, E) spectrometer VERDI we aim at measuring pre- and post-neutron masses directly and simultaneously to avoid prompt neutron corrections. From the simultaneous measurement of pre- and post-neutron fission-fragment data the prompt neutron multiplicity may then be inferred fully correlated with fragment mass yield and total kinetic energy. Using an ultra-fast fission event trigger spectral prompt fission γ-ray measurements may be performed. For that purpose recently developed lanthanum-halide detectors, with excellent timing characteristics, were coupled to the VERDI spectrometer allowing for a very good discrimination of fission γ-rays and prompt neutrons due to their different time-of-flight.
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- Belgya, T. (author)
- Billnert, R. (author)
- Borcea, R. (author)
- Cano-Ott, D. (author)
- Göök, A. (author)
- Hambsch, F. -J (author)
- Karlsson, J. (author)
- Kis, Z. (author)
- Martinez, T. (author)
- Oberstedt, A. (author)
- Szentmiklosi, L. (author)
- Takác, K. (author)
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- In:EPJ Web of Conferences: EDP Sciences2100-014X
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- Hambsch, F. -J
- Karlsson, J.
- Kis, Z.
- Martinez, T.
- Oberstedt, A.
- Szentmiklosi, L.
- Takác, K.
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- NATURAL SCIENCES
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- Royal Institute of Technology
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