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The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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The Sodium Reactor Experiment
In February 1957, construction was completed on the Sodium Reactor Experiment (SRE), a sodium-cooled, graphite-moderated reactor with an output of 20 MWt. The design of theSRE had begun three years earlier in 1954, and construction started in April 1955. On April 25, 1957, the reactor reached criticality, and the SRE operated until February 1964.
F. Mohammadbaghery, S. Saramad, M. Shamsaei
Nuclear Technology | Volume 209 | Number 4 | April 2023 | Pages 636-642
Technical Note | doi.org/10.1080/00295450.2022.2138082
Articles are hosted by Taylor and Francis Online.
Different strategies exist for electron multiplication in a proportional radiation gas detector. In this work, the amplification region is formed by an array of equipotential stainless steel wires that were fixed at equal distance from a bared silver flat ribbon cable as the anode of the detector. The wires in this structure have the same role as the micromesh in Micro-Mesh Gaseous (Micromegas) detectors. Its fabrication method is simple and low cost. In this work, the amplification gain of the fabricated sample at different anode voltages was extracted, and the maximum achievable gain without electric discharge was measured to be M = 315 at 700 V. The proposed detector has an inherently two-dimensional positioning capacity, and the position sensitivity of the detector in one dimension was tested, the results of which show a good discrepancy with theoretical expectation. For the fabricated detector, the maximum number of charges before electric discharge was extracted (1 × 107) and compared with the best-designed Micromegas detector (6 × 107). These results clearly show that the proposed detector, despite its simplicity and cost-effective process, has a reasonable quality in comparison to the Micromegas detector.