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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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Orlando, FL|Renaissance Orlando at SeaWorld
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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.
Jan B. Dragt
Nuclear Science and Engineering | Volume 50 | Number 3 | March 1973 | Pages 216-219
Technical Paper | doi.org/10.13182/NSE73-A28974
Articles are hosted by Taylor and Francis Online.
One usually assumes that Sjöstrand’s area method for determination of reactivity by the pulsed-neutron technique is only valid in case of exponential prompt-neutron decay and no kinetic distortion. In this paper the method is shown to be valid more generally. Namely, for all systems satisfying multigroup multinode reactor equations, with only one fissioning node, the method holds true exactly when reactivity is understood to be the static reactivity, while βeff is defined as the relative difference between the static prompt and total multiplication factors, provided the sensitivity of the detector has the same energy dependence as the fission cross section of the fuel of the active zone. It follows, e.g., that Sjöstrand’s method with a suitable fission counter is very well suited for measurement of subcriticality in small reflected subcritical fast cores. Some general recommendations are given.