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A helium gas scintillator active target for photoreaction measurements

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An Erratum to this article was published on 30 October 2015

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/cm3 at an operating pressure of 2 MPa. Scintillations are read out by photomultiplier tubes and the addition of small amounts of N2 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 4He, 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.

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Author notes

  1. Emma Buchanan

    Present address: School of Physics, University of Bristol, BS8 1TL, Bristol, UK

  2. Andreas J. H. Reiter

    Present address: Gesellschaft für Schwerionenforschung GmbH, Planckstr. 1, D-64291, Darmstadt, Germany

Authors and Affiliations

  1. School of Physics & Astronomy, University of Glasgow, G12 8QQ, Glasgow, Scotland, UK

    Ramsey Al Jebali, John R. M. Annand, Emma Buchanan, Simon Gardner, David J. Hamilton, Kenneth Livingston, John C. McGeorge, Ian J. D. MacGregor, Roderick MacRae, Andreas J. H. Reiter, Günther Rosner, Johan Sjögren, Daria Sokhan & Bruno Strandberg

  2. Department of Physics, University of Lund, Sölvegatan 14, SE-223 62, Lund, Sweden

    Jan-Olof Adler, Kevin Fissum & Bent Schröder

  3. MAX IV Laboratory, PO Box 118, SE-221 00, Lund, Sweden

    Jason Brudvik, Kurt Hansen, Lennart Isaksson, Magnus Lundin & Johan Sjögren

  4. Fen-Edebiyat Faculty, Süleyman Demirel University, 32 260, Isparta, Turkey

    Iskender Akkurt

  5. Kepler Centre for Astro and Particle Physics, Physikalisches Institut, Universität Tübingen, D-72076, Tübingen, Germany

    Duncan G. Middleton

Authors
  1. Ramsey Al Jebali
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  2. John R. M. Annand
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  3. Jan-Olof Adler
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  4. Iskender Akkurt
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  5. Emma Buchanan
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  6. Jason Brudvik
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  8. Simon Gardner
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  9. David J. Hamilton
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  10. Kurt Hansen
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  11. Lennart Isaksson
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  12. Kenneth Livingston
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  13. Magnus Lundin
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  14. John C. McGeorge
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  15. Ian J. D. MacGregor
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  16. Roderick MacRae
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  17. Duncan G. Middleton
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  18. Andreas J. H. Reiter
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  19. Günther Rosner
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  20. Bent Schröder
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  22. Daria Sokhan
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  23. Bruno Strandberg
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Corresponding author

Correspondence to John R. M. Annand.

Additional information

Communicated by A. Jokinen

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Al Jebali, R., Annand, J.R.M., Adler, JO. et al. A helium gas scintillator active target for photoreaction measurements. Eur. Phys. J. A 51, 123 (2015). https://doi.org/10.1140/epja/i2015-15123-y

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  • DOI: https://doi.org/10.1140/epja/i2015-15123-y

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