Indirect measurements of neutron -induced reaction cross sections at heavy -ion storage rings
Paper i proceeding, 2023
Neutron-induced reaction cross sections of unstable nuclei are essential for understanding the synthesis of heavy elements in stars and for applications in nuclear technology. However, their measurement is very complicated due to the radioactivity of the targets involved. We propose to circumvent this problem by using the surrogate reaction method in inverse kinematics, where the nucleus formed in the neutroninduced reaction of interest is produced by a reaction involving a radioactive heavy -ion beam and a stable, light target nucleus. The probabilities as a function of the compound -nucleus excitation energy for y -ray emission, neutron emission and fission, which can be measured with the surrogate reaction, are particularly useful to constrain model parameters and to obtain more accurate predictions of the neutron-induced reaction cross sections of interest. Yet, the full development of the surrogate method is hampered by numerous longstanding target issues, which can be solved by combining surrogate reactions with the unique and largely unexplored possibilities at heavy -ion storage rings. In this contribution, we describe the developments we are carrying out to measure for the first time simultaneously y-ray emission, neutron emission and fission probabilities at the storage rings of the GSI/FAIR facility. In particular, we will present the first results of the proof of principle experiment, which we performed in June 2022 at the Experimental Storage Ring (ESR)
Författare
M. Sguazzin
Université de Bordeaux
B. Jurado
Université de Bordeaux
J. Pibernat
Université de Bordeaux
J. A. Swartz
Université de Bordeaux
M. Grieser
Max-Planck-Gesellschaft
J. Glorius
Helmholtz
Yu. A. Litvinov
Helmholtz
R. Reifarth
Johann Wolfgang Goethe Universität Frankfurt am Main
K. Blaum
Max-Planck-Gesellschaft
P. Alfaurt
Université de Bordeaux
P. Ascher
Université de Bordeaux
L. Audouin
Université Paris-Saclay
C. Berthelot
Université de Bordeaux
B. Blank
Université de Bordeaux
B. Bruckner
Johann Wolfgang Goethe Universität Frankfurt am Main
S. Dellmann
Johann Wolfgang Goethe Universität Frankfurt am Main
I. Dillmann
TRIUMF
C. Domingo-Pardo
Universitat de Valencia
M. Dupuis
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
Université Paris-Saclay
P. Erbacher
Johann Wolfgang Goethe Universität Frankfurt am Main
M. Flayol
Université de Bordeaux
O. Forstner
Helmholtz
D. Freire-Fernandez
Max-Planck-Gesellschaft
Universität Heidelberg
M. Gerbaux
Université de Bordeaux
J. Giovinazzo
Université de Bordeaux
S. Grevy
Université de Bordeaux
C. J. Griffin
TRIUMF
A. Gumberidze
Helmholtz
S. Heil
Johann Wolfgang Goethe Universität Frankfurt am Main
Andreas Heinz
Chalmers, Fysik, Subatomär, högenergi- och plasmafysik
D. Kurtulgil
Johann Wolfgang Goethe Universität Frankfurt am Main
G. Leckenby
TRIUMF
S. Litvinov
Helmholtz
B. Lorentz
Helmholtz
V. Meot
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
Université Paris-Saclay
J. Michaud
Université de Bordeaux
S. Perard
Université de Bordeaux
N. Petridis
Helmholtz
U. Popp
Helmholtz
D. Ramos
Grand Accélérateur National d'Ions Lourds (GANIL)
M. Roche
Université de Bordeaux
M. S. Sanjari
Helmholtz
R. S. Sidhu
University of Edinburgh
U. Spillmann
Helmholtz
M. Steck
Helmholtz
Th. Stoehlker
Helmholtz
B. Thomas
Université de Bordeaux
L. Thulliez
Université Paris-Saclay
M. Versteegen
Université de Bordeaux
15TH INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, ND2022
2100-014X (ISSN)
Vol. 284 01008
15th International Conference on Nuclear Data for Science and Technology (ND2022)
Sacramento, online, USA,
Sacramento, online, USA,
Ämneskategorier
Subatomär fysik
DOI
10.1051/epjconf/202328401008