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^(3)He proportional counter development for thermal neutron detection

Radiation Detection Technology and Methods 2021年第2期5卷 264-272页

作者： Mohamed Fares Adnane Messai Samir Begaa Maameri Salem Kassida Negara Mohamed Yacine Debili Mohammed Messaoudi Laboratory of Nuclear detectors Department Detection and MeasurementNuclear Research Centre of BirineP.O.Box 18017200 Ain OusseraDjelfaAlgeria Reactor Chemistry Department Nuclear Research Centre of BirineP.O.Box 18017200 Ain OusseraDjelfaAlgeria LM2S Physics DepartmentFaculty of ScienceUniversity of Badji Mokhtar-AnnabaP.O.Box.BP 1223000 AnnabaAlgeria

Neutron detection is used in a wide range of applications in nuclear physics,radiation protection,nuclear fuel cycle,reactor instrumentation,security and industrial *** the detectors used in this field,we notice the gas-filled 3He proportional counters which have been one of the main detecting tools for thermal and cold neutron detection for many *** last characteristic has ensured that this detector is one of the best tools for thermal neutron flux measurements in a nuclear reactor *** the instrumentation and detection laboratory of the Nuclear Research Center,of Birine,we are working toward the design and the development of this type of detectors,indeed,several prototypes of neutron detectors have been realized including the 3He proportional *** this paper,we will present the experimental steps and the obtained results to carry out a 3He proportional counter prototype that was fully developed and tested in our laboratory.A comparison study was made between our detector and a commercial cylindrical 3He neutron detector which was considered in this work as a reference detector:LND252(3He)-*** results showed that the characteristics of the gas amplification and the counting plateau for the two counters reference LND 252(3He)-PC and our prototype was of the same order of *** experimental tests show that our developed prototype perfect fit with the standard International Electrotechnical Commission(IEC,***)in the operating principle,the technology adopted and obtained technical specifications.

关键词： neutrons detectors 3He proportional counters Counting plateau Discrimination Gas amplification

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