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New information on the characteristics of 1 in. x 1 in. cerium bromide scintillation detectors
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- Billnert, Robert, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Oberstedt, S. (författare)
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Andreotti, E. (författare)
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Hult, M. (författare)
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Marissens, G. (författare)
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- Oberstedt, Andreas (författare)
- Örebro universitet,Akademin för naturvetenskap och teknik
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(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- Engelska.
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Ingår i: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 647:1, s. 94-99
- Relaterad länk:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- In view of highly demanded new and accurate data on prompt gamma-ray emission in nuclear fission a major part of investigations is directed towards the selection of suitable detector systems. Here we have studied a new type of crystal scintillation detectors made from cerium bromide (CeBr(3)). For the first time a full characterization of such a detector is presented in terms of energy resolution, pulse-height linearity, intrinsic activity and intrinsic timing resolution. In particular the latter one is very important for prompt fission gamma-ray studies, because the presence of fast neutrons, emitted in fission too, requires the time-of-flight method for their discrimination. The energy resolution has been found to be comparable to that of cerium-doped LaCl(3):Ce detectors at an efficiency comparable to the one of a LaBr(3):Ce detector of the same size. The intrinsic activity of the CeBr(3) crystal was observed to be much lower compared to lanthanum halide crystals. The intrinsic timing resolution of a coaxial 1 in. x 1 in. sized detector was measured relative to that of a previously characterized LaCl(3):Ce detector and found to be (326 +/- 7) Ps at (60)Co energies, which is in between those of a LaBr(3):Ce and a LaCl(3):Ce detector of same size.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Prompt fission gamma-rays
- Intrinsic activity
- lacl3-ce
- nai(tl) scintillators
- resolution
- labr3-ce
- Cerium bromide
- Lanthanum chloride
- Timing
- Energy resolution
- x-ray
- Scintillation detector
- Physics
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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