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In-beam background ...
In-beam background suppression shield
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- Santoro, V. (författare)
- European Spallat Source ERIC, SE-22100 Lund, Sweden
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- Cai, X. X. (författare)
- European Spallat Source ERIC, SE-22100 Lund, Sweden; Tech Univ Denmark, DTU Nutech, Roskilde, Denmark,Technical University of Denmark,European Spallation Source ESS AB
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- DiJulio, D. D. (författare)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Other Institutions and Utilities
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- Ansell, S. (författare)
- European Spallat Source ERIC, SE-22100 Lund, Sweden,European Spallation Source ESS AB
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- Bentley, Phillip M. (författare)
- Uppsala University,Lund University,Lunds universitet,Uppsala universitet,Materialfysik,European Spallat Source ERIC, SE-22100 Lund, Sweden,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Other Institutions and Utilities
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: Journal of Neutron Research. - 1023-8166 .- 1477-2655. ; 18:4, s. 135-144
- Relaterad länk:
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http://dx.doi.org/10...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- The long (3 ms) proton pulse of the European Spallation Source (ESS) gives rise to unique and potentially high backgrounds for the instrument suite. In such a source an instrument's capabilities will be limited by its Signal to Noise (S/N) ratio. The instruments with a direct view of the moderator, which do not use a bender to help mitigate the fast neutron background, are the most challenging. For these beam lines we propose the innovative shielding of placing blocks of material directly into the guide system, which allow a minimum attenuation of the cold and thermal fluxes relative to the background suppression. This shielding configuration has been worked into a beam line model using Geant4. We study particularly the advantages of single crystal sapphire and silicon blocks.
Ämnesord
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- Instrument backgrounds
- sapphire
- filter
- neutrons
- spallation source
- filter
- Instrument backgrounds
- neutrons
- sapphire
- spallation source
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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