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Latest News
Webinar: MC&A and safety in advanced reactors in focus
Towell
Russell
Prasad
The American Nuclear Society’s Nuclear Nonproliferation Policy Division recently hosted a webinar on updating material control and accounting (MC&A) and security regulations for the evolving field of advanced reactors.
Moderator Shikha Prasad (CEO, Srijan LLC) was joined by two presenters, John Russell and Lester Towell, who looked at how regulations that were historically developed for traditional light water reactors will apply to the next generation of nuclear technology and what changes need to be made.
V. V. Tikhonov, A. A. Yukhimchuk, R. K. Musyayev, A. I. Gurkin
Fusion Science and Technology | Volume 67 | Number 3 | April 2015 | Pages 612-614
Proceedings of TRITIUM 2013 | doi.org/10.13182/FST14-T92
Articles are hosted by Taylor and Francis Online.
Currently the problem of theoretical calculation and experimental determination of the isotopic exchange rate in mixes of hydrogen isotopes is open. There are a few experimental data on exchange rate constants that are rather discrepant. Of interest are experimental data on isotopic exchange rate in a gaseous mix of hydrogen isotopes at high pressures (thousands atmospheres). Raman spectroscopy is a relevant method for obtaining objective data on isotopic exchange rate in a gaseous mix of hydrogen isotopes, since it allows one to determine a gaseous mix composition without sampling in a real time. The paper describes equipment which allows registration of Raman spectra for gases under pressure up to 400 MPa and experimental data determining the constants of isotopic exchange rate in a protium-deuterium mix at pressures up to 200 MPa.