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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
Standards Program
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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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Takumi Uezono, Toru Motoya, Katsunobu Natori, Satoshi Nishikawa, Keisuke Yamamoto, Tomokazu Takahashi, Shohei Nakamura, Goro Suzuki (Hitachi)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 645-652
We propose a design and verification process for a hardware-resource-efficient FPGA-based functional safety controller. In order to reduce the hardware resources consumed by the NPP application, we developed a resource-sharing calculation architecture on the FPGA. Our designed FPGA-based controller utilizing our developed architecture is hard-wired, but can operate another function by replacing contents in the calculation control memory. Thus, our developed controller achieves both safety and flexibility. In addition, a data conversion tool from NPP application to calculation control data for our developed architecture is also developed. In the verification step, output data from our developed tool is verified by a process where that calculation control data is reversely-converted to the NPP application and checked whether it is equivalent with the original NPP application by the logical equivalence verification method. Our verification process makes it possible to apply formal verification method and achieve the SIL 4 compliant verification process for the FPGA-based controller for Class 1 I&C systems . Our proposed design and verification process was assessed by TÜV Rheinland and accepted as SIL 4 compliant.