Measurement of ^44Ti(α,p)^47V Cross Sections at Energies of Astrophysical Interest

Details Measurement of ^44Ti(α,p)^47V Cross Sections at Energies of Astrophysical Interest Measurement of ^44Ti(α,p)^47V Cross Sections at Energies of Astrophysical Interest

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aps..dnp..df08s&link_type=abstract

American Physical Society, Division of Nuclear Physics Meeting, October 20-23, 1999 Pacific Grove, CA, abstract #DF.08

Physics

Nuclear Physics

Scientific paper

Cross sections for the astrophysical-important ^44Ti(α,p)^47V reaction were measured in the range 5.7 MeV <= E_c.m. <= 9 MeV. The measurements were carried out using a beam of radioactive ^44Ti. Nuclei of ^44Ti were produced by bombarding a Scandium sample with a proton beam at Argonne's IPNS. After a chemical treatment to separate Ti from Sc, ^44Ti ions were accelerated by Argonne's ATLAS to bombard a He gas cell. Intensities of ~ 5×10^5 ^44Ti/s on target were observed. Reaction products and beam-like particles were separated using the Fragment Mass Analyzer. The deduced stellar reaction rates are higher than expectations from standard theoretical calculations. This work was supported by the U.S. Department of Energy, Nuclear Physics Division, under Contract W-31-109-ENG-38.

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