Novel device to study double-alpha decay at the FRS Ion Catcher
L Varga
(1, 2)
,
H Wilsenach
(3, 4)
,
O Hall
(1)
,
T Dickel
(2, 3)
,
M.P Reiter
(1)
,
D Amanbayev
(3, 5)
,
T Davinson
(1)
,
D.J Morrissey
(6)
,
I Pohjalainen
(2)
,
N Tortorelli
(2, 7)
,
J Yu
(2)
,
J Zhao
(2)
,
S Ayet
(1, 2, 8)
,
S Beck
(2)
,
J Bergmann
(3)
,
Z Ge
(2)
,
H Geissel
(2, 3)
,
L Heitz
(9, 10)
,
C Hornung
(2)
,
N Kalantar-Nayestanaki
(11)
,
E Khan
(10)
,
G Kripko-Koncz
(3, 5)
,
I Mardor
(4)
,
M Narang
(2, 11)
,
W Plass
(2)
,
C Scheidenberger
(2, 3, 5)
,
M Simonov
(3, 5)
,
S.K Singh
(2)
,
A State
(12)
,
C Theisen
(9)
,
M Vandebrouck
(9)
,
P.J Woods
(1)
1
SUPA School of Physics and Astronomy [Edinburgh]
2 GSI - GSI Helmholtzzentrum für Schwerionenforschung
3 JLU - Justus-Liebig-Universität Gießen = Justus Liebig University
4 TAU - School of Physics and Astronomy [Tel Aviv]
5 GSI - Helmholtz Centre for Heavy Ion Research
6 Michigan State University [East Lansing]
7 LMU - Ludwig Maximilian University [Munich] = Ludwig Maximilians Universität München
8 UPV - Universitat Politècnica de València = Universitad Politecnica de Valencia = Polytechnic University of Valencia
9 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
10 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
11 University of Groningen [Groningen]
12 NIPNE - Horia Hulubei National Institute of Physics and Nuclear Engineering
2 GSI - GSI Helmholtzzentrum für Schwerionenforschung
3 JLU - Justus-Liebig-Universität Gießen = Justus Liebig University
4 TAU - School of Physics and Astronomy [Tel Aviv]
5 GSI - Helmholtz Centre for Heavy Ion Research
6 Michigan State University [East Lansing]
7 LMU - Ludwig Maximilian University [Munich] = Ludwig Maximilians Universität München
8 UPV - Universitat Politècnica de València = Universitad Politecnica de Valencia = Polytechnic University of Valencia
9 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
10 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
11 University of Groningen [Groningen]
12 NIPNE - Horia Hulubei National Institute of Physics and Nuclear Engineering
Résumé
A novel system has been developed to detect simultaneous double-alpha emission from purified and weightless sources. The system includes the collection of 224Ra low-energy recoils in purified helium buffer gas from the decay of 228Th. The recoil products are thermalized and collected in a cryogenic buffer gas cell and extracted into an RF-ion guide for mass selection. The mass-separated ions are implanted at low kinetic energy into a thin carbon foil placed between two large-area double-sided silicon strip detectors to observe correlated alpha-particle emission. The apparatus is described in detail, including insights into its experimental performance.
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Année | Mois | Jours |
samedi 23 novembre 2024