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Conference papers
Direct measurement of the 18F(p,alpha)15O reaction for application to nova gamma-ray emission
N. de Séréville
1
C. Angulo
1
P. Leleux
1
A. Coc
2
J. Kiener
2
A. Lefebvre
2
V. Tatischeff
2
P. Descouvemont
P. Figuera
F. Hammache
3
N.L. Achouri
4
N.A. Orr
4
I. Stefan
5
E. Casajeros
T. Davinson
D. Robertson
A. Laird
S. Fox
P. Mumby-Croft
K. Vaughan
P. Figuera
Author
F. Hammache 3
Author
N.L. Achouri 4
Author Employer institution : Institut National de Physique Nucléaire et de Physique des Particules du CNRS
N.A. Orr 4
Author Employer institution : Institut National de Physique Nucléaire et de Physique des Particules du CNRS
I. Stefan 5
Author IdHAL : iulian-stefan ResearcherId : http://www.researcherid.com/rid/M-5750-2016 ORCID : https://orcid.org/0000-0001-7923-8908
E. Casajeros
Author
T. Davinson
Author
D. Robertson
Author
1
UCL - Université Catholique de Louvain (Place de l'Université 1 - 1348 Louvain-La-Neuve - Belgium)
2
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (batiments 104 et 108 - 91405 Orsay Campus - France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR8609 (France)
3
IPNO - Institut de Physique Nucléaire d'Orsay (IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX - France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR8608 (France)
4
LPCC - Laboratoire de physique corpusculaire de Caen (ENSICAEN - 6, boulevard du Marechal Juin 14050 Caen Cedex - France)
- UNICAEN - Université de Caen Normandie (Esplanade de la Paix - CS 14032 - 14032 CAEN Cedex 5 - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
- ENSICAEN - École Nationale Supérieure d'Ingénieurs de Caen (6, Boulevard du Maréchal Juin CS 45053 14050 CAEN cedex 04 - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR6534 (France)
5
GANIL - Grand Accélérateur National d'Ions Lourds (Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UPR3266 (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/GANIL (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
Abstract : The 18F nucleus is one of the radioactive isotopes produced during nova explosions. It is of particular interest since it is mainly responsible for the 511 keV gamma-ray emission of novae that could be detected with the INTEGRAL satellite or future gamma-ray telescopes. The amount of 18F synthesised still suffers from large uncertainties coming from missing nuclear information concerning the 18F destruction reaction 18F(p,a)15O. In particular, the interference sign between three 3/2+ resonances in 19Ne, situated slightly above the proton threshold (8 keV and/or 38 keV) and at higher energy (665 keV), is unknown. The maximum effect of these interferences is lying in the energy range corresponding to the Gamow peak region and has a strong impact on the 18F(p,a)15O reaction rate. We report here on the direct measurement at low energy (down to 400 keV in the center-of-mass) of the 18F(p,a)15O total cross section that we performed at the Louvain-la-Neuve CRC-RIB facility with the high-intensity and -purity 18F radioactive beam (T1/2 = 110 min). The total cross section for the different incident energies will be presented and compared to previous experimental data.
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Conference papers
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http://hal.in2p3.fr/in2p3-00539906
Contributor : Sandrine Guesnon <>
Submitted on : Thursday, November 25, 2010 - 2:56:55 PM
Last modification on : Friday, December 4, 2020 - 9:42:02 AM
Contributor : Sandrine Guesnon <>
Submitted on : Thursday, November 25, 2010 - 2:56:55 PM
Last modification on : Friday, December 4, 2020 - 9:42:02 AM
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- HAL Id : in2p3-00539906, version 1
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N. de Séréville, C. Angulo, P. Leleux, A. Coc, J. Kiener, et al.. Direct measurement of the 18F(p,alpha)15O reaction for application to nova gamma-ray emission. International Symposium on Nuclear Astrophysics -- Nuclei in the Cosmos -- IX, Jun 2006, Genève, Switzerland. ⟨in2p3-00539906⟩
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