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Fission studies at IGISOL/JYFLTRAP: Simulations of the ion guide for neutron-induced fission and comparison with experimental data

Authors :
Gao Z.
Solders A.
Al-Adili A.
Canete L.
Eronen T.
Gorelov D.
Jokinen A.
Kankainen A.
Lantz M.
Mattera A.
Moore I.D.
Nesterenko D.A.
Penttilä H.
Pohjalainen I.
Rakopoulos V.
Rinta-Antila S.
Vilén M.
Pomp S.
Source :
EPJ Web of Conferences, Vol 239, p 17019 (2020)
Publication Year :
2020
Publisher :
EDP Sciences, 2020.

Abstract

For the production of exotic nuclei at the IGISOL facility, an ion guide for neutron-induced fission has been developed and tested in experiments. Fission fragments are produced inside the ion guide and collected using a helium buffer gas. Meanwhile, a GEANT4 model has been developed to simulate the transportation and stopping of the charged fission products. In a recent measurement of neutron-induced fission yields, implantation foils were located at different positions in the ion guide. The gamma spectra from these foils and the fission targets are compared to the results from the GEANT4 simulation. In order to allow fission yield measurements in the low yield regions, towards the tails and in the symmetric part of the mass distribution, the stopping and extraction efficiency of the ion guide has to be significantly improved. This objective can be achieved by increasing the size while introducing electric field guidance using a combination of static electrodes and an RF-carpet. To this end, the GEANT4 model is used to optimise the design of such an ion guide.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
239
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.1c2b1dabbb14e87a3a9783b7074f2c0
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/202023917019