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Performance of a mo...
Performance of a monolithic LaBr3 : Ce crystal coupled to an array of silicon photomultipliers
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- Ulyanov, A. (författare)
- School of Physics, University College Dublin, Ireland
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- Morris, O. (författare)
- School of Physics, University College Dublin, Ireland; Galway-Mayo Institute of Technology, Galway, Ireland
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- Hanlon, L (författare)
- School of Physics, University College Dublin, Ireland
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- Mc Breen, S (författare)
- School of Physics, University College Dublin, Ireland
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- Foley, S (författare)
- School of Physics, University College Dublin, Ireland
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- Roberts, O (författare)
- School of Physics, University College Dublin, Ireland
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- Tobin, I (författare)
- School of Physics, University College Dublin, Ireland
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- Murphy, D (författare)
- School of Physics, University College Dublin, Ireland
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- Wade, C (författare)
- School of Physics, University College Dublin, Ireland
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- Nelms, N (författare)
- European Space Agency, ESTEC
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- Shortt, B (författare)
- European Space Agency, ESTEC
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- Slavicek, Tomas (författare)
- Czech Technical University in Prague
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- Granja, C. (författare)
- Czech Technical University in Prague
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- Solar, M. (författare)
- Czech Technical University in Prague
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(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 810:810, s. 107-119
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A gamma-ray detector composed of a single 28×28×20 mm3 LaBr3:Ce crystal coupled to a custom built 4×4 array of silicon photomultipliers was tested over an energy range of 30 keV to 9.3 MeV. The silicon photomultipliers were initially calibrated using 20 ns light pulses generated by a light emitting diode. The photodetector responses measured as a function of the number of incident photons were found to be non-linear and consistent with model predictions. Using corrections for the non-linearity of the silicon photomultipliers, the detector showed a linear response to gamma-rays with energies from 100 keV to the maximum available energy of 9.3 MeV. The energy resolution was found to be 4% FWHM at 662 keV. Despite the large thickness of the scintillator (20 mm) and a 5 mm thick optical window, the detector was capable of measuring the positions of the gamma-ray interaction points. The position resolution was measured at 356 keV and was found to be 8 mm FWHM in the detector plane and 11 mm FWHM for the depth of interaction. The detector can be used as a building block of a larger calorimeter system that is capable of measuring gamma-ray energies up to tens of MeV.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
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Ulyanov, A.
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Morris, O.
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Hanlon, L
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Mc Breen, S
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Foley, S
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Roberts, O
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visa fler...
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Tobin, I
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Murphy, D
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Wade, C
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Nelms, N
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Shortt, B
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Slavicek, Tomas
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Granja, C.
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Solar, M.
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visa färre...
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