The so-called '3He-crisis' has motivated the neutron detector community to undertake an intense R&D programme in order to develop technologies alternative to standard 3He tubes and suitable for neutron detection systems in future spallation sources such as the European spallation source (ESS). Boron-based GEM (gas electron multiplier) detectors are a promising '3He-free' technology for thermal neutron detection in neutron scattering experiments. In this paper the evolution of boron-based GEM detectors from planar to 3D converters with an application in diffraction measurements is presented. The use of 3D converters coupled with GEMs allows for an optimization of the detector performances. Three different detectors were used for diffraction measurements on the INES instrument at the ISIS spallation source. The performances of the GEM-detectors are compared with those of conventional 3He tubes installed on the INES instrument. The conceptual detector with the 3D converter used in this paper reached a count rate per unit area of about 25% relative to the currently installed 3He tube. Its timing resolution is similar and the signal-to-background ratio (S/B) is 2 times lower.

Albani, G., PERELLI CIPPO, E., Croci, G., Muraro, A., Schooneveld, E., Scherillo, A., et al. (2016). Evolution in boron-based GEM detectors for diffraction measurements: From planar to 3D converters. MEASUREMENT SCIENCE & TECHNOLOGY, 27(11) [10.1088/0957-0233/27/11/115902].

Evolution in boron-based GEM detectors for diffraction measurements: From planar to 3D converters

ALBANI, GIORGIA
Primo
;
PERELLI CIPPO, ENRICO
Secondo
;
CROCI, GABRIELE;MURARO, ANDREA;REBAI, MARICA;TARDOCCHI, MARCO
Penultimo
;
GORINI, GIUSEPPE
Ultimo
2016

Abstract

The so-called '3He-crisis' has motivated the neutron detector community to undertake an intense R&D programme in order to develop technologies alternative to standard 3He tubes and suitable for neutron detection systems in future spallation sources such as the European spallation source (ESS). Boron-based GEM (gas electron multiplier) detectors are a promising '3He-free' technology for thermal neutron detection in neutron scattering experiments. In this paper the evolution of boron-based GEM detectors from planar to 3D converters with an application in diffraction measurements is presented. The use of 3D converters coupled with GEMs allows for an optimization of the detector performances. Three different detectors were used for diffraction measurements on the INES instrument at the ISIS spallation source. The performances of the GEM-detectors are compared with those of conventional 3He tubes installed on the INES instrument. The conceptual detector with the 3D converter used in this paper reached a count rate per unit area of about 25% relative to the currently installed 3He tube. Its timing resolution is similar and the signal-to-background ratio (S/B) is 2 times lower.
Articolo in rivista - Articolo scientifico
diffraction detector; GEM technology; helium3-free detector; neutron detector;
neutron detector, GEM technology, diffraction detector, helium3-free detector
English
2016
27
11
115902
reserved
Albani, G., PERELLI CIPPO, E., Croci, G., Muraro, A., Schooneveld, E., Scherillo, A., et al. (2016). Evolution in boron-based GEM detectors for diffraction measurements: From planar to 3D converters. MEASUREMENT SCIENCE & TECHNOLOGY, 27(11) [10.1088/0957-0233/27/11/115902].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/133144
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