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Validation and improvement of gamma heating calculation methods for the G.A. Siwabessy multipurpose reactor

Nuclear Science and Techniques 2020年第11期31卷 68-77页

作者： Anis Rohanda Abdul Waris Rizal Kurniadi Syaiful Bakhri Pardi Pardi Dwi Haryanto Department of Physics Faculty of Mathematics and Natural SciencesBandung Institute of TechnologyJalan Ganesa 10Bandung 40132Indonesia Center for Nuclear Reactor Technology and Safety(PTKRN) Indonesia Nuclear Energy Agency(BATAN)Serpong Nuclear Area PuspiptekBuilding No.80 SerpongTangerang Selatan 15310Indonesia Center for Multipurpose Reactor(PRSG) Indonesia Nuclear Energy Agency(BATAN)Serpong Nuclear Area PuspiptekBuilding No.30 SerpongTangerang Selatan 15310Indonesia

gamma heating,which is deposited in irradiated targets or samples,is an important issue in research reactors because it affects the safety of samples and the reactor *** heating in the Reaktor Serba Guna ***(RSG GAS)can be measured or calculated using computer *** this paper,we present the results obtained by using gamma calorimeters to measure the gamma heating in the central irradiation position in RSG *** measurement results were verified and then compared with the calculation results obtained using the Gamset ***,the accuracy of the calculation results obtained using Gamset was inadequate,with more than 20%***,Gamset was initially created to calculate gamma heating in 35 MWth reactors,and the RSG GAS reactor has an operating power level of 30 *** address these issues,we developed a new program called NewGamset,built with an informative graphical user interface-based *** can employ new analytical approaches as it utilizes a calculation base that comprises 18 energy groups and can provide updated physical parameters of RSG *** results of gamma heating measurements obtained using gamma calorimeters made of graphite,aluminum,iron,and zirconiumwere 2.20±0.03 W/g,2.25±0.02 W/g,2.58±0.03 W/g,and 2.91±0.10 W/g,*** general,the calculation results were larger than the measurement results,and the average ratio of calculation to measurement result was 1.37 for Gamset and 1.02 for ***,it can be concluded that NewGamset provides more accurate results than *** also report the gamma heating estimation for common elements irradiated in the RSG GAS silicide core,with an operating power level of 15 MWth and 30 *** highly recommend that NewGamset be used for validating the gamma heating data of various target materials in RSG GAS.

关键词： gamma heating RSG GAS Calorimeter NewGamset

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