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boron-10 lined proportional counter development for thermal neutron detection

Radiation Detection Technology and Methods 2021年第1期5卷 110-116页

作者： Mohamed Fares Mohamed Yacine Debili Mohammed Messaoudi Samir Begaa Kassida Negara Adnane Messai Laboratory of Nuclear Detectors Department Detection and MeasurementNuclear Research Centre of BirineP.O.Box 18017200 Ain OusseraDjelfaAlgeria LM2S Physics DepartmentFaculty of ScienceBadji Mokhtar UniversityBP 1223200 AnnabaAlgeria Reactor Chemistry Department Nuclear Research Centre of BirineP.O.Box 18017200 Ain OusseraDjelfaAlgeria

Purpose Neutrons detection is of paramount importance in nuclear physics experiments,reactor physics,monitoring and control of nuclear reactors and in radiation *** the neutron detectors used are Proportional Counters(PC to BF3,boron deposition,3He),Our Detection and Measurements laboratory has embarked on a project to develop,design and build proportional counters with boron deposition mainly for gas filling,several prototypes of which have been *** This work presents the boron-10 Lined Proportional Counters(PC),developed and produced in the Detection and Measurements Department(DDM19).The PC was designed by adopting,for the electrodes,a stainless steel cathode 0.5 mm thick and a gold-plated tungsten anode with diameter of 25μ*** detectors are filled with an Ar-CH4 mixture(10%)at a pressure of 20 *** boron deposition is performed by the technique of *** The results obtained using the DDM19 prototype PC(Detector produced in our Detection and Measurement laboratory,2019),show the advantage of electrophoresis as a better boron deposition technique,and the limitation of the surface mass of 10B to optimal values is around 0.5 at 0.6 mg/*** The characteristics of the gas amplification in the mixture(Ar-CH4(CH410%)),were measured by different methods and compared with the values of the proportional reference counter *** counting plates for the two reference meters LND232 and our DDM19 prototype from 200 to 300 V have slopes ranging from 6.5 to 10%/100 V,and gas amplification factors from 1436 to 1380,respectively.

关键词： Neutron detector boron-10 lined proportional counter Reference LND232 boron deposition technique

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