Medley spectrometer for light ions in neutron-induced reactions at 175 MeV

Riccardo Bevilacqua, Stephan Pomp, Vasily Simutkin, Masateru Hayashi, Shusuke Hirayama, Yuuki Naitou, Yukinobu Watanabe, Udomrat Tippawan, Milan Tesinsky, Gilles Ban, Jean Luc Lecouey, François René Lecolley, Nathalie Marie, Quentin Hamel

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We have upgraded the Medley spectrometer to measure neutron-induced double differential cross-sections for light-ion production, with neutron energies up to 175 MeV. Measurements were performed at the quasi-monoenergetic neutron beam line at the The Svedberg Laboratory, in Uppsala (Sweden). Medley is a spectrometer system composed of eight three-element telescope detectors; ΔEE technique is used for particle identification and total kinetic energy measurement. We have improved particle separation and installed new detectors that fully stop ions with kinetic energy up to 170 MeV. To reduce the contribution of the low energy tail in the quasi-monoenergetic neutron spectrum, we have applied time-of-flight techniques and investigated the results for measurements with 175 MeV neutrons. We have investigated the response function of the CsI(Tl) scintillators and describe a method for efficiency correction. We have studied the signal-to-background ratio of the new configuration of the spectrometer and of the collimation system. A method to obtain absolute cross-section normalization, separating the peak neutrons from the low-energy tail, is proposed. Finally we have characterized the 175 MeV quasi-monoenergetic neutron spectrum with the Medley spectrometer. This upgraded configuration has been used in 2007 and 2009 for light-ion production measurements at 175 MeV from C, Si, O, Fe, Bi and U.

Original languageEnglish
Pages (from-to)100-107
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume646
Issue number1
DOIs
Publication statusPublished - Aug 1 2011

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light ions
Spectrometers
Neutrons
spectrometers
neutrons
neutron spectra
Ions
kinetic energy
Kinetic energy
Sweden
detectors
cross sections
neutron beams
collimation
configurations
scintillation counters
Detectors
energy
Electric power measurement
Neutron beams

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Medley spectrometer for light ions in neutron-induced reactions at 175 MeV. / Bevilacqua, Riccardo; Pomp, Stephan; Simutkin, Vasily; Hayashi, Masateru; Hirayama, Shusuke; Naitou, Yuuki; Watanabe, Yukinobu; Tippawan, Udomrat; Tesinsky, Milan; Ban, Gilles; Lecouey, Jean Luc; Lecolley, François René; Marie, Nathalie; Hamel, Quentin.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 646, No. 1, 01.08.2011, p. 100-107.

Research output: Contribution to journalArticle

Bevilacqua, R, Pomp, S, Simutkin, V, Hayashi, M, Hirayama, S, Naitou, Y, Watanabe, Y, Tippawan, U, Tesinsky, M, Ban, G, Lecouey, JL, Lecolley, FR, Marie, N & Hamel, Q 2011, 'Medley spectrometer for light ions in neutron-induced reactions at 175 MeV', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 646, no. 1, pp. 100-107. https://doi.org/10.1016/j.nima.2011.04.036
Bevilacqua, Riccardo ; Pomp, Stephan ; Simutkin, Vasily ; Hayashi, Masateru ; Hirayama, Shusuke ; Naitou, Yuuki ; Watanabe, Yukinobu ; Tippawan, Udomrat ; Tesinsky, Milan ; Ban, Gilles ; Lecouey, Jean Luc ; Lecolley, François René ; Marie, Nathalie ; Hamel, Quentin. / Medley spectrometer for light ions in neutron-induced reactions at 175 MeV. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 646, No. 1. pp. 100-107.
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AU - Pomp, Stephan

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AU - Hayashi, Masateru

AU - Hirayama, Shusuke

AU - Naitou, Yuuki

AU - Watanabe, Yukinobu

AU - Tippawan, Udomrat

AU - Tesinsky, Milan

AU - Ban, Gilles

AU - Lecouey, Jean Luc

AU - Lecolley, François René

AU - Marie, Nathalie

AU - Hamel, Quentin

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