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The mu TPC method: improving the position resolution of neutron detectors based on MPGDs
European Spallat Source ESS AB, SE-22100 Lund, Sweden.
European Spallat Source ESS AB, SE-22100 Lund, Sweden.
Linkoping Univ, IFM, SE-58183 Linkoping, Sweden.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.ORCID iD: 0000-0003-3221-2086
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2015 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 10, P04004Article in journal (Refereed) Published
Abstract [en]

Due to the He-3 crisis, alternatives to the standard neutron detection techniques are becoming urgent. In addition, the instruments of the European Spallation Source (ESS) require advances in the state of the art of neutron detection. The instruments need detectors with excellent neutron detection efficiency, high rate capabilities and unprecedented spatial resolution. The Macromolecular Crystallography instrument (NMX) requires a position resolution in the order of 200 mu m over a wide angular range of incoming neutrons. Solid converters in combination with Micro Pattern Gaseous Detectors (MPGDs) are proposed to meet the new requirements. Charged particles rising from the neutron capture have usually ranges larger than several millimetres in gas. This is apparently in contrast with the requirements for the position resolution. In this paper, we present an analysis technique, new in the field of neutron detection, based on the Time Projection Chamber (TPC) concept. Using a standard Single-GEM with the cathode coated with (B4C)-B-10, we extract the neutron interaction point with a resolution of better than sigma = 200 mu m.

Place, publisher, year, edition, pages
2015. Vol. 10, P04004
Keyword [en]
Particle tracking detectors, Time projection Chambers (TPC), Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc), Neutron detectors (cold, thermal, fast neutrons)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-25687DOI: 10.1088/1748-0221/10/04/P04004ISI: 000357961700049Local ID: STCOAI: oai:DiVA.org:miun-25687DiVA: diva2:849130
Available from: 2015-08-27 Created: 2015-08-18 Last updated: 2016-12-20Bibliographically approved

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Hall-Wilton, Richard

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