Physics
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007epjst.150..211d&link_type=abstract
The European Physical Journal Special Topics, Volume 150, November 2007, pp.211-214
Physics
1
&Ndash, &Ndash
Scientific paper
The 18F, produced during nova explosions, is the main responsible for the 511 keV γ-ray emitted during the outburst that could be detected with satellite missions or future γ-ray telescopes. In spite of many experimental efforts, the amount of 18F synthesized still suffers from large uncertainties concerning mainly the 18F(p,α)15O reaction. We report here on a new direct measurement of the 18F(p,α)15O cross section recently carried out at the RIB facility at Louvain-la-Neuve. Cross section data down to a center-of-mass energy of 400 keV have been obtained using an isobarically pure 18F beam (averaged intensity of the order of 106 pps) and a thin polyethylene target. The reaction products were detected using the multi-strip detector array LEDA. The cross section data are analysed in the framework of the R-matrix model. Our main aim is to determine the interference sign between three 3/2+ resonances above threshold that can significantly affect the extrapolation of the 18F(p,α)15O cross section to the energies relevant for novae, and thus, the modeling of nova explosions.
Achouri N. L.
Angulo Carmen
Casarejos E.
Coc Alain
Davinson T.
No associations
LandOfFree
New low-energy measurement of the 18F(p,α)15O reaction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with New low-energy measurement of the 18F(p,α)15O reaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New low-energy measurement of the 18F(p,α)15O reaction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-739584