Discussion on Key Issues in the Review of Technical Specifications of China Experimental Fast Reactor
Issue:
Volume 7, Issue 2, June 2022
Pages:
30-33
Received:
18 May 2022
Accepted:
6 June 2022
Published:
21 June 2022
DOI:
10.11648/j.ns.20220702.11
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Abstract: China experimental fast reactor is the first fast reactor. As the highest law during the operation of nuclear facilities, the technical specifications play a vital role in the stable operation of fast reactors. The review of operation technical specifications is a comprehensive review, especially for fast reactor, which is the first time in China. There are great differences between fast reactor and traditional pressurized water reactor in technology. Due to the current regulations and standards in China, most of them are formulated according to PWR. The design of the new reactor has not formed a complete standard system, especially the operation mode. The modification of the operation mode is a major modification of the operation technical specification. This paper mainly describes the core problems encountered in the nuclear safety review of the technical specifications of China experimental fast reactor, such as the operation mode, the operability of the primary circuit sodium pump, the overpressure protection system, the periodic test of the containment chamber for sodium fire and argon release accidents, and finally obtains a suitable solution. It provides technical support for the continuous development of China's fast reactor industry. The review of technical specifications for fast reactor has achieved good practical results and provided valuable experience for subsequent commercial power plants.
Abstract: China experimental fast reactor is the first fast reactor. As the highest law during the operation of nuclear facilities, the technical specifications play a vital role in the stable operation of fast reactors. The review of operation technical specifications is a comprehensive review, especially for fast reactor, which is the first time in China. ...
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Leptonic Pair Production in Electro Magnetic Field
Sadah Abdullah Alkhateeb,
Aisha Abdu Alshaery,
Rawan Ali Aldosary
Issue:
Volume 7, Issue 2, June 2022
Pages:
34-38
Received:
22 May 2022
Accepted:
15 June 2022
Published:
27 June 2022
DOI:
10.11648/j.ns.20220702.12
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Abstract: At very high energies, the pair production formation through (Photon with Nucleus produce Leptons and Anti-Leptons) exhibits a variety of intriguing properties. Our present objective was to study the electromagnetic fields (DCS) of sulfur nuclei and their effects on high energy lepton pair production. Analytically and quantitatively, the formation of Leptonic pairs in the Electromagnetic field of light (sulfur) nuclei was calculated by the Beth-Hitler equation for the leptonic pair production process. In Ultra-Relativistic (UR) areas of incident photon energy, applying the resulting formulas to the energy distribution of the leptonic pair production process. When we compare the results, we can observe that the Magnetic field of the target nucleus is more efficacious than the Electric field of the nucleus in the leptonic pair production process. Furthermore, we can show that in Pair Production process, the Differential Cross Section (DCS) owing to the target nucleus's Electric Quadrupole (EQ) and Magnetic Octupole (MO) are bigger than the Differential Cross Section (DCS) attributable to the target nucleus's Electric Charge (EC) distribution and Magnetic Dipole (MD). A lighter-mass nucleus is more effective than a higher-mass nucleus. From this, we conclude that the lower the mass number, the better the production of the pair.
Abstract: At very high energies, the pair production formation through (Photon with Nucleus produce Leptons and Anti-Leptons) exhibits a variety of intriguing properties. Our present objective was to study the electromagnetic fields (DCS) of sulfur nuclei and their effects on high energy lepton pair production. Analytically and quantitatively, the formation ...
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