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The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
S. B. Degweker, Y. S. Rana
Nuclear Science and Engineering | Volume 169 | Number 3 | November 2011 | Pages 296-313
Technical Paper | doi.org/10.13182/NSE10-54
Articles are hosted by Taylor and Francis Online.
Reactor noise in accelerator-driven systems (ADSs) is different from that in critical or radioactive source-driven subcritical systems because of the periodically pulsed source and its non-Poisson character. In two earlier papers, we developed a theory of ADS reactor noise, incorporating these features. The non-Poisson character of the source does not permit the use of the forward Kolmogorov equation or the Bartlette formula, two commonly used techniques in traditional noise theory. The method used in these papers was a probability-generating function combined with the linear character of the reactor noise in zero-power systems. In this paper we develop the Langevin approach to reactor noise in ADSs. Apart from being simpler, the Langevin approach allows treatment of feedback effects arising in ADSs with significant power as well as other noise sources, if any. We demonstrate that it is possible to obtain the correct expressions for various noise descriptors using this approach. The method is then applied to treat correlated non-Poisson pulsed sources with a finite pulse width including delayed neutrons. The present paper complements and expands our earlier discussions of ADS reactor noise.