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

*Corresponding author for this work

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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