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The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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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.
K. Y. Lee
Fusion Science and Technology | Volume 68 | Number 1 | July 2015 | Pages 152-156
Technical Paper | Open Magnetic Systems 2014 | doi.org/10.13182/FST14-865
Articles are hosted by Taylor and Francis Online.
A method of estimating the margin of error for Thomson scattering systems based on polychromators has been devised during the operation of the Translation, Confinement, and Sustainment Upgrade (TCSU) experiment. This method first uses the propagation of uncertainty to determine the standard deviation (SD) of the ratio between two output signals. Later the SD or error is projected onto a characteristic curve that relates different ratios of the signal output to the electron temperature. This method brings an asymmetry to the error bounds, which goes accordingly to the ratio of the spectral response function for distinguishing higher temperatures. Also, the method follows with the nature of photon-statistics. As the plasma density is increased, as one might expect, the corresponding amplitude of the error bar becomes smaller.