Probing the universe by using pulsed keV neutrons

Details Probing the universe by using pulsed keV neutrons Probing the universe by using pulsed keV neutrons

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996snaj.conf...60n&link_type=abstract

Proceedings of the international workshop on science in Neutron-arena of JHP, p. 60

Computer Science

Neutrons, Stellar Evolution, Stellar Models, Capture Effect, Big Bang Cosmology, Iron, Metallicity, Chemical Composition, Pulsed Radiation, Neutron Sources, Spallation, Late Stars, Time Of Flight Spectrometers, Inhomogeneity, Nuclear Fusion, Spectroscopic Analysis

Scientific paper

Models of the stellar evolution and nucleosynthesis in stars in necessary to investigate the record of the Big Bang. The observed abundances of various elements in stars could be used to construct the models. Since the heavier elements than iron are considered to be synthesized by the neutron capture reaction of a nucleus in stars it is necessary to measure the reaction cross section at stellar temperature to estimate quantitatively the production of these elements. To this purpose pulsed keV neutrons from the JHP spallation source would be very useful.

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