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A helium gas scintillator active target for photoreaction measurements

Al Jebali, Ramsey; Annand, John R. M.; Adler, Jan-Olof LU ; Akkurt, Iskender; Buchanan, Emma; Brudvik, Jason LU ; Fissum, Kevin LU ; Gardner, Simon; Hamilton, David J. and Hansen, Kurt LU , et al. (2015) In European Physical Journal A. Hadrons and Nuclei 51(10).
Abstract
A multi-cell He gas scintillator active target, designed for the measurement of photoreaction cross sections, is described. The target has four main chambers, giving an overall thickness of 0.103 g/cm(3) at an operating pressure of 2MPa. Scintillations are read out by photomultiplier tubes and the addition of small amounts of N-2 to the He, to shift the scintillation emission from UV to visible, is discussed. First results of measurements at the MAX IV Laboratory tagged-photon facility show that the target has a timing resolution of around 1 ns and can cope well with a high-flux photon beam. The determination of reaction cross sections from target yields relies on a Monte Carlo simulation, which considers scintillation light transport,... (More)
A multi-cell He gas scintillator active target, designed for the measurement of photoreaction cross sections, is described. The target has four main chambers, giving an overall thickness of 0.103 g/cm(3) at an operating pressure of 2MPa. Scintillations are read out by photomultiplier tubes and the addition of small amounts of N-2 to the He, to shift the scintillation emission from UV to visible, is discussed. First results of measurements at the MAX IV Laboratory tagged-photon facility show that the target has a timing resolution of around 1 ns and can cope well with a high-flux photon beam. The determination of reaction cross sections from target yields relies on a Monte Carlo simulation, which considers scintillation light transport, photodisintegration processes in He-4, background photon interactions in target windows and interactions of the reaction-product particles in the gas and target container. The predictions of this simulation are compared to the measured target response. (Less)
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European Physical Journal A. Hadrons and Nuclei
volume
51
issue
10
publisher
Springer
external identifiers
  • wos:000361994400001
  • scopus:84942934018
ISSN
1434-6001
DOI
10.1140/epja/i2015-15123-y
language
English
LU publication?
yes
id
4c4d2485-1eb4-4c7e-a0a6-a2412d9e8fcb (old id 8221473)
date added to LUP
2015-12-02 11:23:09
date last changed
2017-08-06 04:19:59
@article{4c4d2485-1eb4-4c7e-a0a6-a2412d9e8fcb,
  abstract     = {A multi-cell He gas scintillator active target, designed for the measurement of photoreaction cross sections, is described. The target has four main chambers, giving an overall thickness of 0.103 g/cm(3) at an operating pressure of 2MPa. Scintillations are read out by photomultiplier tubes and the addition of small amounts of N-2 to the He, to shift the scintillation emission from UV to visible, is discussed. First results of measurements at the MAX IV Laboratory tagged-photon facility show that the target has a timing resolution of around 1 ns and can cope well with a high-flux photon beam. The determination of reaction cross sections from target yields relies on a Monte Carlo simulation, which considers scintillation light transport, photodisintegration processes in He-4, background photon interactions in target windows and interactions of the reaction-product particles in the gas and target container. The predictions of this simulation are compared to the measured target response.},
  articleno    = {123},
  author       = {Al Jebali, Ramsey and Annand, John R. M. and Adler, Jan-Olof and Akkurt, Iskender and Buchanan, Emma and Brudvik, Jason and Fissum, Kevin and Gardner, Simon and Hamilton, David J. and Hansen, Kurt and Isaksson, Lennart and Livingston, Kenneth and Lundin, Magnus and McGeorge, John C. and MacGregor, Ian J. D. and MacRae, Roderick and Middleton, Duncan G. and Reiter, Andreas J. H. and Rosner, Guenther and Schroder, Bent and Sjögren, Johan and Sokhan, Daria and Strandberg, Bruno},
  issn         = {1434-6001},
  language     = {eng},
  number       = {10},
  publisher    = {Springer},
  series       = {European Physical Journal A. Hadrons and Nuclei},
  title        = {A helium gas scintillator active target for photoreaction measurements},
  url          = {http://dx.doi.org/10.1140/epja/i2015-15123-y},
  volume       = {51},
  year         = {2015},
}