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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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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.
B. Juste, R. Miró, J. M. Campayo, S. Diez, G. Verdú
Nuclear Technology | Volume 168 | Number 3 | December 2009 | Pages 637-642
Accelerators | Special Issue on the 11th International Conference on Radiation Shielding and the 15th Topical Meeting of the Radiation Protection and Shielding Division (PART 3) / Radiation Protection | doi.org/10.13182/NT09-A9281
Articles are hosted by Taylor and Francis Online.
The work focuses on reconstructing, by means of a scatter analysis method, the primary beam photon spectrum of a linear accelerator. This technique is based on irradiating the isocenter of a rectangular block made of methacrylate placed at 100 cm from the source and measuring scattered particles around the plastic at several specific positions with different scatter angles. The MCNP5 Monte Carlo code has been used to simulate the particle transport of monoenergetic beams and register the scatter measurement after contact with the attenuator. Measured ionization values are input necessary for calculating the spectrum as the sum of monoenergetic individual energy bins using the Schiff bremsstrahlung model. The measurements have been made in an Elekta Precise linac using a 6-MeV photon beam. Relative depth and profile dose curves calculated in a water phantom using the reconstructed spectrum agree with the experimentally measured dose data to within 5%.