Answer:The main content of this revision includes: firstly, in terms of scope of application, the revision adds new provisions applicable to“ Supply of steam and heat; A nuclear power plant designed to meet the development needs of nuclear energy in China.
Secondly, in terms of terminology definitions, revisions have been made to include definitions for small modular nuclear power plants, densely populated areas, trough discharge outlets, and management target values. The definitions for environmentally sensitive areas, multi reactor sites, planning restricted areas, and effluent have also been adjusted. Especially for the newly added small modular nuclear power plants, based on fully considering the practical application of small reactors in China and emphasizing their inherent safety characteristics, they are defined as a single core thermal power not exceeding 300MW.
Thirdly, in terms of site selection, revisions have added basic assumptions and determination principles for hypothetical accidents in site selection. For small modular nuclear power plants, requirements for the establishment of non residential areas and planning restricted areas have been clarified, as well as dose acceptance criteria under hypothetical accidents in site selection.
Fourthly, in terms of radiation protection requirements for operational status, stricter management requirements have been formulated for single and multi reactor site emissions of various types of effluent except tritium and carbon-14Added management requirements for radioactive nuclide activity concentration in liquid effluent。
The fifth aspect is the management and monitoring of effluent emissions,New requirements have been added for online monitoring of effluent and regular optimization of effluent monitoring outline, and principles for selecting nuclides for liquid effluent monitoring have been proposed.In addition, five appendices have been added to support the revision of the aforementioned clauses.
Jiechuang Nuclear Instrument (Beijing) Technology Co., Ltd. has always taken the localization of nuclear electronics technology as its first goal. Through continuous technological accumulation, it has developed a series of core components and products for nuclear electronics. On this basis, in recent years, representative laboratory nuclear instruments have been successively launched: high-purity germaniumγ Spectrometer, alpha; Spectrometer, screen ionization chamber, flow gas low background alpha; /β Measuring instruments and portable devices: handheld lanthanum bromide spectrometer, wound contamination detector, water and food radioactivity detector, etc.
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