Selection of Neutron absorbing materials to improve the low - energyresponce of Zr - Based extended neutron monitor using monte carlo simulations.

Biju, K. and Sunil, C. and Tripathy, S. P. and Joshi, D. S. and Bandyopadhyay, T. and Sarkar, P. K. (2014) Selection of Neutron absorbing materials to improve the low - energyresponce of Zr - Based extended neutron monitor using monte carlo simulations. Radiation Protection Dosimetry.. pp. 1-6. ISSN 0144-8420.

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Abstract

Monte Carlo simulations have been carried out using the FLUKA code to improve the neutron ambient dose equivalent [H*(10)] response of the ZReC (zirconium-lined portable neutron counter responding satisfactorily to neutrons up to 1 GeV) by introducing various neutron absorbers in the system such as cadmium, gadolinium, natural boron, enriched 10B and borated polythene. It was found that ZReC can be effectively used as a portable neutron monitor by introducing any one of the following perforated layers: 5 mm thick natural boron, 0.5 mm thick enriched 10B or 1 cm high-density polythene mixed with 50 % boron by weight. The integral response of the instrument was also calculated for some typical reference neutron fields. The relative ambient dose equivalent response of the said system is also found comparable with that of the existing LINUS neutron monitor.

Item Type: Article
Additional Information: Copy right of this article is belongs to Oxford University Press
Subjects: Departments at MU > Manipal Centre for Natural Sciences
Depositing User: MCNS Library
Date Deposited: 28 Aug 2014 09:39
Last Modified: 28 Aug 2014 09:39
URI: http://eprints.manipal.edu/id/eprint/140490

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