Very Low Energy Protons From the Beta Decay of Proton Rich Nuclei For Nuclear Astrophysics

Details Very Low Energy Protons From the Beta Decay of Proton Rich Nuclei For Nuclear Astrophysics Very Low Energy Protons From the Beta Decay of Proton Rich Nuclei For Nuclear Astrophysics

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1213..239s&link_type=abstract

FIFTH EUROPEAN SUMMER SCHOOL ON EXPERIMENTAL NUCLEAR ASTROPHYSICS. AIP Conference Proceedings, Volume 1213, pp. 239-241 (2010).

Astronomy and Astrophysics

Astrophysics

Beta-Decay, Astronomical Telescopes, Spectrometers, Gamma-Rays, Weak-Interaction And Lepton Aspects, Ground-Based Ultraviolet, Optical And Infrared Telescopes, Charged-Particle Spectrometers: Electric And Magnetic, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

We have developed a new experimental technique to measure very low energy protons from β-delayed p-decay of proton-rich nuclei produced and separated with the MARS recoil spectrometer at TAMU. Recently we have investigated the β-delayed p-decays of 23Al[1] and 31Cl[2] and obtained information on the resonances in the reactions 22Na(p,γ)23Mg and 30P(p,γ)31S, respectively. These reactions are important in explosive H-burning in Novae [3]. 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 (β-detectors) was designed. We studied two different p-detectors and found that the thinner detectors with a small cell size are best to measure proton energies as low as 2-300 keV.

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