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Evaluating vacuum p...
Evaluating vacuum phototriodes designed for the PANDA electromagnetic calorimeter
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- Makonyi, Karoly (author)
- Stockholms universitet,Fysikum
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- Marcks von Würtemberg, Klas (author)
- Stockholms universitet,Fysikum
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- Tegnér, Per-Erik (author)
- Stockholms universitet,Fysikum
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- Hansen, Kurt (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Isaksson, Lennart (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Lundin, Magnus (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Schröder, Bent (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Balkeståhl, Li (author)
- Uppsala universitet,Kärnfysik
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- Fransson, Kjell (author)
- Uppsala universitet,Kärnfysik
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- Johansson, Tord (author)
- Uppsala universitet,Kärnfysik
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- Rosenbaum, C. (author)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Wolke, Magnus (author)
- Uppsala universitet,Kärnfysik
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Erni, W. (author)
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Keshelashvili, I. (author)
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Krushe, B. (author)
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
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In: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576 .- 0167-5087. ; 763, s. 36-43
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Abstract
Subject headings
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- In this work properties of a vacuum phototriode (VPT) and preamplifier unit designed for the electromagnetic calorimeter of the PANDA experiment being built at FAIR are investigated. With the use of lead tungstate and lanthanium bromide scintillators the VPT properties are studied at low photon energies, from tens of key in the lanthanium bromide measurements and between 10 MeV and 60 MeV in the lead tungstate measurements. At these energies the noise of the VPT unit can be expected to influence its performance significantly. It is shown that the noise contribution to the measured energy resolution, under optimal conditions, is consistent with a fluctuation of (one standard deviation) approximately 200 electrons at the VPT anode. For a lead tungstate crystal this is equivalent to a noise of 1.2 MeV. For lanthanium bromide this makes it possible to use VPTs for gamma ray spectroscopy above a few hundreds of keV without noticeable effects on the energy resolution compared to measurements with a standard photomultiplier.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
Keyword
- Vacuum phototriodes
- Lead tungstate
- Electromagnetic calorimeter
- PANDA
- Tagged photons
- Lanthanium bromide
- Vacuum phototriodes
- Lead tungstate
- Electromagnetic calorimeter
- PANDA
- Tagged photons
- Lanthanium bromide
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Makonyi, Karoly
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Marcks von Würte ...
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Tegnér, Per-Erik
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Hansen, Kurt
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Isaksson, Lennar ...
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Lundin, Magnus
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show more...
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Schröder, Bent
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Balkeståhl, Li
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Fransson, Kjell
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Johansson, Tord
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Rosenbaum, C.
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Wolke, Magnus
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Erni, W.
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Keshelashvili, I ...
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Krushe, B.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Accelerator Phys ...
- Articles in the publication
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Nuclear Instrume ...
- By the university
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Stockholm University
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Lund University
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Uppsala University