Abstract
Tritium and rare gas production cross-sections for highenergy protons were measured in different materials, including complex materials such as olivine and stone meteorites, in order to estimate production rates and ratios of these isotopes in meteorites. To find the general behavior of the excitation functions, measurements were made between energies of 0.6 and 25 Bev. The influence on the cross-sections due to irradiation technique, monitoring cross- sections, and gas separation from the target was studied. Values are given for the cross-sections with absolute errors of 15%, and in some cases below 10%. Production ratios were determined from the cross-section measurements, and the final cross-section results were compared with expected values from Monte Carlo calculations and from Rudstam's spallation formulae. In general, agreement was satisfactory, although the parameters chosen for the stable isotopes in Rudstam's spallation formulae were slightly different from the values adopted for the radioactive isotopes. The results obtained also show in general good agreement with the predictions of the evaporation theory, 62 references. (auth)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.