Determination of fission barrier height of 210Fr and 210Ra via neutron measurement
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F24%3A00372945" target="_blank" >RIV/68407700:21670/24:00372945 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.109.014618" target="_blank" >https://doi.org/10.1103/PhysRevC.109.014618</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.109.014618" target="_blank" >10.1103/PhysRevC.109.014618</a>
Alternative languages
Result language
angličtina
Original language name
Determination of fission barrier height of 210Fr and 210Ra via neutron measurement
Original language description
Fission barrier heights of short-lived nuclei away from line of β stability are not known reliably. Low-energy fission of 210Fr and 210Ra, produced by (d,p) and (d,n) transfer reaction on the re-accelerated unstable beam 209Fr was investigated at HIE-ISOLDE. Four Timepix3 pixel detectors were installed on the body of the ACTAR TPC demonstrator chamber. Polyethylene converters were used for the detection of fast neutrons. Since no significant background was observed, it was possible to measure the spatial distribution of emitted neutrons reflecting the fission excitation function. Subsequent simulations employing the results of the talys code and available data on fission fragment distributions allowed to estimate directly the value of the fission barrier height for the neutron-deficient nucleus 210Fr. This first direct measurement confirmed the reduction of the fission barrier compared to available theoretical calculations by 15–30%.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA21-24281S" target="_blank" >GA21-24281S: Experiment IS581 "(d,p)-transfer induced fission of heavy radioactive beams"</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
109
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
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UT code for WoS article
001176020400002
EID of the result in the Scopus database
2-s2.0-85183021339