Low-level gamma-ray spectrometry for analysing fusion plasma conditions

J. S.Elisabeth Wieslander; Mikael Hult; Georges Bonheure; Dirk Arnold; Harald Dombrowski; Joël Gasparro; Matthias Laubenstein; Gerd Marissens; Peter Vermaercke

doi:10.1016/j.nima.2008.02.052

Low-level gamma-ray spectrometry for analysing fusion plasma conditions

J. S.Elisabeth Wieslander
, Mikael Hult
, Georges Bonheure
, Dirk Arnold
, Harald Dombrowski
, Joël Gasparro
, Matthias Laubenstein
, Gerd Marissens
, Peter Vermaercke

Laboratory for Plasma Physics

Inst. for Syst., Info., and Safely
University of Jyväskylä
Physikalisch Technische Bundesanstalt (PTB)
Laboratori Nazionali del Gran Sasso
STUDIECENTRUM VOOR KERNENERGIE / CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

11 Citations (Scopus)

Résumé

A new method, combining activation by neutrons and charged particles with ultra low-level gamma-ray spectrometry, aimed at obtaining a better understanding and more adequate measurements of MeV particle leaks in magnetic fusion devices was studied here. A total of 36 samples containing Ti, LiF, B₄C and W were placed in a boron-nitride holder mounted on the ceiling of the JET Tokamak. The samples were activated by 63 pulses from a D-³He plasma and were later measured using underground gamma-ray spectrometry. The radionuclides ⁷Be, ⁴⁶Sc, ⁵⁴Mn, ⁵⁶Co, ⁵⁷Co, ⁵⁸Co, ¹²⁴Sb, ¹⁸¹Hf, ¹⁸²Ta, ¹⁸¹W and ¹⁸⁵W were detected in several of the samples, with very low levels of activity of ⁴⁷Sc and ⁴⁸V found in a few of the samples. The various production channels for the radionuclides in question are discussed.

langue originale	Anglais
Pages (de - à)	383-393
Nombre de pages	11
journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	591
Numéro de publication	2
Les DOIs	https://doi.org/10.1016/j.nima.2008.02.052
état	Publié - 21 juin 2008

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10.1016/j.nima.2008.02.052

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Wieslander, J. S. E., Hult, M., Bonheure, G., Arnold, D., Dombrowski, H., Gasparro, J., Laubenstein, M., Marissens, G., & Vermaercke, P. (2008). Low-level gamma-ray spectrometry for analysing fusion plasma conditions. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 591(2), 383-393. https://doi.org/10.1016/j.nima.2008.02.052

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title = "Low-level gamma-ray spectrometry for analysing fusion plasma conditions",

abstract = "A new method, combining activation by neutrons and charged particles with ultra low-level gamma-ray spectrometry, aimed at obtaining a better understanding and more adequate measurements of MeV particle leaks in magnetic fusion devices was studied here. A total of 36 samples containing Ti, LiF, B4C and W were placed in a boron-nitride holder mounted on the ceiling of the JET Tokamak. The samples were activated by 63 pulses from a D-3He plasma and were later measured using underground gamma-ray spectrometry. The radionuclides 7Be, 46Sc, 54Mn, 56Co, 57Co, 58Co, 124Sb, 181Hf, 182Ta, 181W and 185W were detected in several of the samples, with very low levels of activity of 47Sc and 48V found in a few of the samples. The various production channels for the radionuclides in question are discussed.",

keywords = "Activation, Charged particles, Thermonuclear fusion, Ultra low-level gamma-ray spectrometry, Underground laboratory",

author = "Wieslander, \{J. S.Elisabeth\} and Mikael Hult and Georges Bonheure and Dirk Arnold and Harald Dombrowski and Jo{\"e}l Gasparro and Matthias Laubenstein and Gerd Marissens and Peter Vermaercke",

year = "2008",

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doi = "10.1016/j.nima.2008.02.052",

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Wieslander, JSE, Hult, M, Bonheure, G, Arnold, D, Dombrowski, H, Gasparro, J, Laubenstein, M, Marissens, G & Vermaercke, P 2008, 'Low-level gamma-ray spectrometry for analysing fusion plasma conditions', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, VOL. 591, Numéro 2, p. 383-393. https://doi.org/10.1016/j.nima.2008.02.052

Low-level gamma-ray spectrometry for analysing fusion plasma conditions. / Wieslander, J. S.Elisabeth; Hult, Mikael; Bonheure, Georges et al.
Dans: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol 591, Numéro 2, 21.06.2008, p. 383-393.

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

TY - JOUR

T1 - Low-level gamma-ray spectrometry for analysing fusion plasma conditions

AU - Wieslander, J. S.Elisabeth

AU - Hult, Mikael

AU - Bonheure, Georges

AU - Arnold, Dirk

AU - Dombrowski, Harald

AU - Gasparro, Joël

AU - Laubenstein, Matthias

AU - Marissens, Gerd

AU - Vermaercke, Peter

PY - 2008/6/21

Y1 - 2008/6/21

N2 - A new method, combining activation by neutrons and charged particles with ultra low-level gamma-ray spectrometry, aimed at obtaining a better understanding and more adequate measurements of MeV particle leaks in magnetic fusion devices was studied here. A total of 36 samples containing Ti, LiF, B4C and W were placed in a boron-nitride holder mounted on the ceiling of the JET Tokamak. The samples were activated by 63 pulses from a D-3He plasma and were later measured using underground gamma-ray spectrometry. The radionuclides 7Be, 46Sc, 54Mn, 56Co, 57Co, 58Co, 124Sb, 181Hf, 182Ta, 181W and 185W were detected in several of the samples, with very low levels of activity of 47Sc and 48V found in a few of the samples. The various production channels for the radionuclides in question are discussed.

AB - A new method, combining activation by neutrons and charged particles with ultra low-level gamma-ray spectrometry, aimed at obtaining a better understanding and more adequate measurements of MeV particle leaks in magnetic fusion devices was studied here. A total of 36 samples containing Ti, LiF, B4C and W were placed in a boron-nitride holder mounted on the ceiling of the JET Tokamak. The samples were activated by 63 pulses from a D-3He plasma and were later measured using underground gamma-ray spectrometry. The radionuclides 7Be, 46Sc, 54Mn, 56Co, 57Co, 58Co, 124Sb, 181Hf, 182Ta, 181W and 185W were detected in several of the samples, with very low levels of activity of 47Sc and 48V found in a few of the samples. The various production channels for the radionuclides in question are discussed.

KW - Activation

KW - Charged particles

KW - Thermonuclear fusion

KW - Ultra low-level gamma-ray spectrometry

KW - Underground laboratory

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 2

ER -

Low-level gamma-ray spectrometry for analysing fusion plasma conditions

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