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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
14 MeV calibration of JET neutron detectors-phase 1: Calibration and characterization of the neutron source
Nuclear Fusion, Volume 58, No. 2, Article 026012, Year 2018
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Description
In view of the planned DT operations at JET, a calibration of the JET neutron monitors at 14 MeV neutron energy is needed using a 14 MeV neutron generator deployed inside the vacuum vessel by the JET remote handling system. The target accuracy of this calibration is 10% as also required by ITER, where a precise neutron yield measurement is important, e.g. for tritium accountancy. To achieve this accuracy, the 14 MeV neutron generator selected as the calibration source has been fully characterised and calibrated prior to the in-vessel calibration of the JET monitors. This paper describes the measurements performed using different types of neutron detectors, spectrometers, calibrated long counters and activation foils which allowed us to obtain the neutron emission rate and the anisotropy of the neutron generator, i.e.The neutron flux and energy spectrum dependence on emission angle, and to derive the absolute emission rate in 4π sr. The use of high resolution diamond spectrometers made it possible to resolve the complex features of the neutron energy spectra resulting from the mixed D/T beam ions reacting with the D/T nuclei present in the neutron generator target. As the neutron generator is not a stable neutron source, several monitoring detectors were attached to it by means of an ad hoc mechanical structure to continuously monitor the neutron emission rate during the in-vessel calibration. These monitoring detectors, two diamond diodes and activation foils, have been calibrated in terms of neutrons/counts within ± 5% total uncertainty. A neutron source routine has been developed, able to produce the neutron spectra resulting from all possible reactions occurring with the D/T ions in the beam impinging on the Ti D/T target. The neutron energy spectra calculated by combining the source routine with a MCNP model of the neutron generator have been validated by the measurements. These numerical tools will be key in analysing the results from the in-vessel calibration and to derive the response of the JET neutron detectors to DT plasma neutrons starting from the response to the generator neutrons, and taking into account all the calibration circumstances. © 2017 EURATOM.
Authors & Co-Authors
Alves, E. Jorge
Portugal, Lisbon
Universidade de Lisboa
Angioni, Clemente
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Balden, Martin
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Barnard, Monica A.
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Basiuk, Vincent
France, Saint Paul Lez Durance
Cea Cadarache
B́ecoulet, Alain
France, Saint Paul Lez Durance
Cea Cadarache
Beurskens, Marc N.A.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Bobkov, Volodymyr V.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Boom, Jurrian E.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Bottereau, Christine
France, Saint Paul Lez Durance
Cea Cadarache
Bourdelle, Clarisse
France, Saint Paul Lez Durance
Cea Cadarache
Bower, Charles R.
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Braic, Viorel T.
Romania, Bucharest
Optoelectronics S.a.
Brémond, Sylvain
France, Saint Paul Lez Durance
Cea Cadarache
Breton, Sylvain N.
France, Saint Paul Lez Durance
Cea Cadarache
Brezinsek, Sebastijan
Germany, Julich
Forschungszentrum Jülich Gmbh
Bucalossi, Jérôme
France, Saint Paul Lez Durance
Cea Cadarache
Bufferand, Hugo
France, Saint Paul Lez Durance
Cea Cadarache
Buscarino, Arturo
Italy, Catania
Università Degli Studi Di Catania
Carvalho, Pedro J.
Portugal, Lisbon
Universidade de Lisboa
Chankin, Alexch V.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Chapman, Sandra C.
United Kingdom, Coventry
University of Warwick
Ciraolo, Guido
France, Saint Paul Lez Durance
Cea Cadarache
Clairet, Frédéric
France, Saint Paul Lez Durance
Cea Cadarache
Coelho, R. M.
Portugal, Lisbon
Universidade de Lisboa
Colas, Laurent
France, Saint Paul Lez Durance
Cea Cadarache
Corre, Yann
France, Saint Paul Lez Durance
Cea Cadarache
Coster, D. P.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Chomiczewska, Agata M.
Unknown Affiliation
Dejarnac, Renaud
Czech Republic, Prague
Institute of Plasma Physics, Academy of Sciences of the Czech Republic
Donné, Anthony J.H.
Unknown Affiliation
Dunai, Dániel
Hungary, Budapest
Wigner Research Centre for Physics
D̃uran, Ivan
Czech Republic, Prague
Institute of Plasma Physics, Academy of Sciences of the Czech Republic
Dux, Ralph
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Eich, Thomas
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Esposito, Basilio E.
Italy, Frascati
Enea Centro Ricerche Frascati
Fernandes, Horácio M.
Portugal, Lisbon
Universidade de Lisboa
Ferreira, J. G.
Portugal, Lisbon
Universidade de Lisboa
Figueiredo, J.
Portugal, Lisbon
Universidade de Lisboa
Fortuna, Luigi
Italy, Catania
Università Degli Studi Di Catania
Frasca, Mattia
Italy, Catania
Università Degli Studi Di Catania
Frassinetti, Lorenzo
Sweden, Stockholm
The Royal Institute of Technology Kth
Ga´l, K.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Gao, Xiang
China, Beijing
Chinese Academy of Sciences
Giroud, Carine
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Gorini, Giuseppe
Italy, Milan
Università Degli Studi Di Milano-bicocca
Greuner, Henri
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Guillemaut, Ch
France, Saint Paul Lez Durance
Cea Cadarache
Portugal, Lisbon
Universidade de Lisboa
Hatch, David R.
United States, Austin
The University of Texas at Austin
Hill, Melissa P.
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Hobirk, Joerg
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Hogeweij, G. M.D.
Netherlands, Eindhoven
Dutch Institute for Fundamental Energy Research
Horáček, Jan
Czech Republic, Prague
Institute of Plasma Physics, Academy of Sciences of the Czech Republic
Horton, Lorne D.
Belgium, Brussels
European Commission
Jardin, A.
France, Saint Paul Lez Durance
Cea Cadarache
Jaulmes, Fabien
Netherlands, Eindhoven
Dutch Institute for Fundamental Energy Research
Kallenbach, Arne
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Kirk, Andrew
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Klix, Axel
Germany, Karlsruhe
Karlsruher Institut Für Technologie
Koubiti, Mohammed
France, Marseille
Aix Marseille Université
Krieger, K.
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Kurki-Suonio, Taina K.
Finland, Espoo
Aalto University
Lang, Peter Thomas
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
Liang, Yunfeng
Germany, Julich
Forschungszentrum Jülich Gmbh
Likonen, Jari
Finland, Espoo
Teknologian Tutkimuskeskus Vtt
López Navarro, Juan Manuel
Spain, Madrid
Universidad Politécnica de Madrid
Luce, Timothy Charles
United States, San Diego
General Atomics
Lungu, Cristian Petricǎ
Romania, Magurele
National Institute for Laser, Plasma and Radiation Physics
Lyssoivan, Anatoli I.
Belgium, Brussels
Koninklijke Militaire School - Ecole Royale Militaire
Maggi, Costanza F.
United Kingdom, Abingdon
Culham Centre for Fusion Energy
MALAQUIAS, A. J.
Portugal, Lisbon
Universidade de Lisboa
Malizia, A.
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Manso, Maria Emilia C.
Portugal, Lisbon
Universidade de Lisboa
Mantica, Paola
Unknown Affiliation
Mantsinen, Mervi J.
Spain, Barcelona
Centro Nacional de Supercomputación
Marandet, Yannick
France, Marseille
Aix Marseille Université
Matejčík, Štefan
Slovakia, Bratislava
Univerzita Komenského V Bratislave
Matthews, Guy F.
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Mayer, Matej
Germany, Garching Bei Munchen
Max Planck Institute for Plasma Physics
McCarthy, Patrick J.
Ireland, Cork
University College Cork
Mertens, Ph
Germany, Julich
Forschungszentrum Jülich Gmbh
Messiaen, André M.
Belgium, Brussels
Koninklijke Militaire School - Ecole Royale Militaire
Moneti, Marta
Italy, Viterbo
Università Degli Studi Della Tuscia Viterbo
Naulin, Volker
Denmark, Lyngby
Technical University of Denmark
Nedzelski, I.
Portugal, Lisbon
Universidade de Lisboa
Neto, André Cabrita
Unknown Affiliation
Nielsen, Anders Henry
Denmark, Lyngby
Technical University of Denmark
Papp, Peter
Slovakia, Bratislava
Univerzita Komenského V Bratislave
Pérez von Thun, Christian P.
Germany, Julich
Forschungszentrum Jülich Gmbh
Porosnicu, Corneliu
Romania, Magurele
National Institute for Laser, Plasma and Radiation Physics
Possnert, Göran
Sweden, Uppsala
Uppsala Universitet
Pozzi, Jean Pierre
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Pucella, Gianluca
Italy, Frascati
Enea Centro Ricerche Frascati
Rakha, Allah
Spain, Barcelona
Centro Nacional de Supercomputación
Rasmussen, Jens Juul
Denmark, Lyngby
Technical University of Denmark
Rebai, M.
Italy, Milan
Università Degli Studi Di Milano-bicocca
Robinson, Thompson Gordon
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Ruchko, Leonid F.
Brazil, Sao Paulo
Universidade de São Paulo
Saarelma, Samuli
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Saint-Laurent, François
France, Saint Paul Lez Durance
Cea Cadarache
Samm, Ulrich O.
Germany, Julich
Forschungszentrum Jülich Gmbh
Sergienko, Gennady V.
Germany, Julich
Forschungszentrum Jülich Gmbh
Słabkowska, Katarzyna
Unknown Affiliation
Snoj, Luka
Slovenia, Ljubljana
Institut Jožef Stefan
Stan-Sion, Catalin
Romania, Magurele
Horia Hulubei National Institute for R&d in Physics and Nuclear Engineering
Śzawlowski, Marek
Unknown Affiliation
Tál, Balazs
Hungary, Budapest
Wigner Research Centre for Physics
Tardocchi, Marco
Unknown Affiliation
Thornton, Andrew J.
United Kingdom, Abingdon
Culham Centre for Fusion Energy
Turner, Miles M.
Ireland, Dublin
Dublin City University
Loreti, Stefano
Finland, Espoo
Aalto University
Germany, Karlsruhe
Karlsruher Institut Für Technologie
Vasilopoulou, Theodora
Greece, Athens
National Centre for Scientific Research Demokritos
Wang, Nengchao
Germany, Julich
Forschungszentrum Jülich Gmbh
Watkins, Nicholas W.
United Kingdom, Coventry
University of Warwick
Statistics
Citations: 25
Authors: 114
Affiliations: 94
Identifiers
Doi:
10.1088/1741-4326/aa98f6
ISSN:
00295515
Research Areas
Environmental