Indirect measurements of neutron -induced reaction cross sections at heavy -ion storage rings
Paper in 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)
Author
M. Sguazzin
University of Bordeaux
B. Jurado
University of Bordeaux
J. Pibernat
University of Bordeaux
J. A. Swartz
University of Bordeaux
M. Grieser
Max Planck Society
J. Glorius
Helmholtz
Yu. A. Litvinov
Helmholtz
R. Reifarth
Goethe University Frankfurt
K. Blaum
Max Planck Society
P. Alfaurt
University of Bordeaux
P. Ascher
University of Bordeaux
L. Audouin
University Paris-Saclay
C. Berthelot
University of Bordeaux
B. Blank
University of Bordeaux
B. Bruckner
Goethe University Frankfurt
S. Dellmann
Goethe University Frankfurt
I. Dillmann
TRIUMF
C. Domingo-Pardo
Universitat de Valencia
M. Dupuis
The French Alternative Energies and Atomic Energy Commission (CEA)
University Paris-Saclay
P. Erbacher
Goethe University Frankfurt
M. Flayol
University of Bordeaux
O. Forstner
Helmholtz
D. Freire-Fernandez
Max Planck Society
Heidelberg University
M. Gerbaux
University of Bordeaux
J. Giovinazzo
University of Bordeaux
S. Grevy
University of Bordeaux
C. J. Griffin
TRIUMF
A. Gumberidze
Helmholtz
S. Heil
Goethe University Frankfurt
Andreas Heinz
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
D. Kurtulgil
Goethe University Frankfurt
G. Leckenby
TRIUMF
S. Litvinov
Helmholtz
B. Lorentz
Helmholtz
V. Meot
The French Alternative Energies and Atomic Energy Commission (CEA)
University Paris-Saclay
J. Michaud
University of Bordeaux
S. Perard
University of Bordeaux
N. Petridis
Helmholtz
U. Popp
Helmholtz
D. Ramos
Grand Accélérateur National d'Ions Lourds (GANIL)
M. Roche
University of Bordeaux
M. S. Sanjari
Helmholtz
R. S. Sidhu
University of Edinburgh
U. Spillmann
Helmholtz
M. Steck
Helmholtz
Th. Stoehlker
Helmholtz
B. Thomas
University of Bordeaux
L. Thulliez
University Paris-Saclay
M. Versteegen
University of 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,
Subject Categories
Subatomic Physics
DOI
10.1051/epjconf/202328401008