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      Investigation of gamma-ray sensitivity of neutron detectors based on thin converter films

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          Abstract

          Currently, many detector technologies for thermal neutron detection are in development in order to lower the demand for the rare 3He gas. Gas detectors with solid thin film neutron converters readout by gas proportional counter method have been proposed as an appropriate choice for applications where large area coverage is necessary. In this paper, we investigate the probability for gamma-rays to generate a false count in a neutron measurement. Simulated results are compared to measurement with a 10B thin film prototype and a 3He detector. It is demonstrated that equal gamma-ray rejection to that of 3He tubes is achieved with the new technology. The arguments and results presented here are also applicable to gas detectors with converters other than solid 10B layers, such as 6Li layers and 10BF3 gas.

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          Experimental benchmarks of the Monte Carlo code penelope

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            Search for alternative techniques to helium-3 based detectors for neutron scattering applications

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              The 10B based Jalousie neutron detector – An alternative for 3He filled position sensitive counter tubes

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                Author and article information

                Journal
                26 June 2013
                Article
                10.1088/1748-0221/8/10/P10025
                1306.6247
                8d8f57f9-6be0-49df-b661-be0cdfb14b06

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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                Submitted to Journal of Instrumentation
                physics.ins-det

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