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Study of fission using multi-nucleon transfer reactions
- Source :
- EPJ Web Conf., Scientific Workshop on Nuclear Fission dynamics and the Emission of Prompt Neutrons and Gamma Rays, Scientific Workshop on Nuclear Fission dynamics and the Emission of Prompt Neutrons and Gamma Rays, Jun 2017, Varna, Bulgaria. pp.00013, ⟨10.1051/epjconf/201816900013⟩, EPJ Web of Conferences, Vol 169, p 00013 (2018), EPJ Web of Conferences, Vol 163, p 00041 (2017)
- Publication Year :
- 2017
- Publisher :
- EDP Sciences, 2017.
-
Abstract
- It is shown that multi-nucleon transfer reaction is a powerful tool to study fission of exotic neutronrich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18 O+232 Th, 18 O+238 U, 18 O+248 Cm, and 18 O+237 Np were used to measure fission-fragment mass distribution for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all the studied cases, with an increase of the symmetric fission towards high excitation energies. Experimental data are compared with predictions of the fluctuation-dissipation model, where effects of multi-chance fission (neutron evaporation prior to fission) was introduced. It is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited and less neutronrich excited nuclei due to higher-order chance fissions.
- Subjects :
- Cold fission
Cluster decay
Fission
Chemistry
010308 nuclear & particles physics
Physics
QC1-999
Nuclear Theory
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
7. Clean energy
01 natural sciences
Nuclear physics
Excited state
0103 physical sciences
Physics::Atomic and Molecular Clusters
Nuclear fusion
Neutron
Atomic physics
Nucleon
Nuclear Experiment
010306 general physics
Excitation
Subjects
Details
- ISSN :
- 2100014X and 21016275
- Volume :
- 163
- Database :
- OpenAIRE
- Journal :
- EPJ Web of Conferences
- Accession number :
- edsair.doi.dedup.....5a83cf211001be16689d6b682761c954