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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
Shyn-Jen Lee
Nuclear Science and Engineering | Volume 96 | Number 3 | July 1987 | Pages 221-233
Technical Paper | doi.org/10.13182/NSE87-A16383
Articles are hosted by Taylor and Francis Online.
The neutron noise was formulated based on a multidimensional, multiregion, multigroup diffusion model. To solve for the flux fluctuations, the model was generalized and clarified using the adjoint function approach, which included checking the reciprocity relation to assure the correctness of the established adjoint function, solving the adjoint function with a finite-volume detector, and increasing the rate of convergence of the series solutions by nonlinear transform. The model was applied to a coupled core reactor to recalculate detector responses to a unidirectional vibration of a neutron absorber. The lack of agreement between the calculated results and the measurements might be partly due to some simplifications and approximations. It is recommended that measurements should be made in cases where the model can be used more feasibly.