Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005omeg.conf..521s&link_type=abstract
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2003. Held 17-19 November 2003 in RIKEN, Wako, Saitama, Japan. Edited by M Terasawa,
Astronomy and Astrophysics
Astronomy
Scientific paper
We should clarify several problems for the Re-Os pair to be used as one of the good cosmochronometers. First, since 187Os is formed and depleted by sequential neutron capture in stars, the effects should be corrected. Second, 187Os is depleted by the neutron capture process through the excited state at 10keV. It is very important to find a proper way to correct for the s-process contribution in deducing the age of the Galaxy. In order to correct for the effect mentioned above and to determine the age of the universe, we are planning to measure the neutron capture cross section of the first excited state (Eexcited = 10 keV) of 187Os is one of the key parameters in deduceing the age of the Galaxy using the Re-Os cosmochronometer. In order to deduce the cross section we are preparing various detectors using a newly developed experimental method. In these paper I briefly describe our experimental methods to accurately determine the neutron caprute cross section of the first excited state of 187Os.
Hayakawa Tadaaki
Igashira Masayuki
Makii Hiroyuki
Masaki T.
Mishima Kenji
No associations
LandOfFree
Neutron Experiment for the Study of Re/Os Cosmochronometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Neutron Experiment for the Study of Re/Os Cosmochronometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutron Experiment for the Study of Re/Os Cosmochronometer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1466980