Very Low Energy Protons From The Beta Decay Of Proton Rich Nuclei For Nuclear Astrophysics

E. Simmons, L. Trache, A. Banu, M. McCleskey, B. Roeder, A. Spiridon, R. E. Tribble, A. Saastamoinen, J. Aysto, T. Davinson, P. J. Woods, G. J. Lotay, J. Wallace

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The MARS group at TAMU has developed a new experimental technique to measure very low energy protons from beta-delayed proton-decay of proton-rich nuclei produced and separated with the MARS recoil spectrometer at TAMU. Recently we have investigated the beta-delayed p-decays of (23)Al [1], and (31)Cl [2], and obtained information on the resonances in the (22)Na(p,gamma)(23)mg and (30)P(p,gamma)(31)S reactions, respectively. These reactions are important in explosive H-burning in Novae [3]. Recently an experiment looking at the beta-delayed p-decay of (20)Mg was also done in order to obtain information on resonances in the (19)Ne(p,gamma)(20)Na reaction. A simple setup consisting of a telescope made of a thin double sided Si strip detector (p-detector) backed or sandwiched between two thick Si detectors (beta-detectors) was designed. We studied different W1 and BB2 p-detectors made by MSL, and found that the thinner detectors with a small cell size are best to measure proton energies as low as 2-300 keV.

Original languageEnglish
Title of host publicationExotic Nuclei and Nuclear - Particle Astrophysics Iii: From Nuclei To Stars
EditorsL Trache, S Stoica, A Smirnov
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics
Pages415-419
Number of pages5
Volume1304
ISBN (Print)978-0-7354-0859-3
DOIs
Publication statusPublished - 2010
EventEXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS (III): From Nuclei to Stars - Sinaia, Romania
Duration: 20 Jun 20103 Jul 2010

Publication series

NameAIP Conference Proceedings
PublisherAMER INST PHYSICS
Volume1304
ISSN (Print)0094-243X

Conference

ConferenceEXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS (III): From Nuclei to Stars
CountryRomania
CitySinaia
Period20/06/103/07/10

Keywords

  • nuclear astrophysics
  • decay spectroscopy
  • beta-delayed proton decay

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