Search: WFRF:(Hall Wilton Richard J.) >
Investigation of ba...
Investigation of background in large-area neutron detectors due to alpha emission from impurities in aluminium
-
- Birch, J (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Jensen, Jens (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Clergeau, J. -F. (author)
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France
-
show more...
-
- van Esch, P. (author)
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France
-
- Ferraton, M. (author)
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France
-
- Guerard, B. (author)
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France
-
- Hall-Wilton, Richard (author)
- Mittuniversitetet,Mid Sweden University,Lund University,Lunds universitet,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Other Institutions and Utilities,Avdelningen för elektronikkonstruktion,European Spallation Source, P.O Box 176, Lund, Sweden,European Spallat Source, Sweden; Mid Sweden University, Sweden
-
- Hultman, Lars (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Höglund, Carina (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten,European Spallat Source, Sweden
-
Jensen, J. (author)
-
- Khaplanov, Anton (author)
- Lund University,Lunds universitet,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Other Institutions and Utilities,Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France,Institute Laue Langevin, France; European Spallat Source, Sweden
-
- Piscitelli, F. (author)
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France,Institute Laue Langevin, France; European Spallat Source, Sweden
-
show less...
-
(creator_code:org_t)
- IOP PUBLISHING LTD, 2015
- 2015
- English.
-
In: Journal of Instrumentation. - : IOP PUBLISHING LTD. - 1748-0221. ; 10
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- Thermal neutron detector based on films of (B4C)-B-10 have been developed as an alternative to He-3 detectors. In particular, The Multi-Grid detector concept is considered for future large area detectors for ESS and ILL instruments. An excellent signal-to-background ratio is essential to attain expected scientific results. Aluminium is the most natural material for the mechanical structure of of the Multi-Grid detector and other similar concepts due to its mechanical and neutronic properties. Due to natural concentration of alpha emitters, however, the background from alpha particles misidentified as neutrons can be unacceptably high. We present our experience operating a detector prototype affected by this issue. Monte Carlo simulations have been used to confirm the background as alpha particles. The issues have been addressed in the more recent implementations of the Multi-Grid detector by the use of purified aluminium as well as Ni-plating of standard aluminium. The result is the reduction in background by two orders of magnitude. A new large-area prototype has been built incorporating these modifications.
Subject headings
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- fast neutrons)
- thermal
- Neutron detectors (cold
- Materials for
- Gaseous detectors
- Instrumentation for neutron sources
- Gaseous detectors
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Birch, J
-
Jensen, Jens
-
Clergeau, J. -F.
-
van Esch, P.
-
Ferraton, M.
-
Guerard, B.
-
show more...
-
Hall-Wilton, Ric ...
-
Hultman, Lars
-
Höglund, Carina
-
Jensen, J.
-
Khaplanov, Anton
-
Piscitelli, F.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Accelerator Phys ...
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Electrical Engin ...
- Articles in the publication
-
Journal of Instr ...
- By the university
-
Lund University
-
Mid Sweden University
-
Linköping University