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IHEP 2014 - 4 (In Russian) | |
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V.N.Peleshko, E.N.Savitskaya, A.V.Sannikov
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Optimization of the Neutron Dosemeter Design
with Extended Energy Range for High Energy Accelerators
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| Protvino, 2014. – p. 17, fig. 13, tables 3, refs.: 22. | ||
Different variants of the neutron dosemeter design for high energy accelerators based on fast scintillation thermal neutron detector with lithium glass have been considered. Detector is placed in the centre of polyethylene moderator in the form of sphere, cylinder or truncated cylinder with lead insertion for increasing dosemeter sensitivity to neutrons with energies above 20 MeV. Optimization calculations of the design parameters from the angular and energy response dependence point of view have been performed in the energy range from thermal to 1 GeV. The best results have been obtained for the versions including boron filter along with the lead insertion. The least weight of a device is achieved in this case. The dosemeter is developed for use in radiation monitoring systems of IHEP U-70 accelerator complex and other accelerators. It can be also used outside the shields of reactors and other low energy facilities.
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