Fusion product measurements by nuclear diagnostics in the Joint European Torus deuterium–tritium 2 campaign (invited)
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- Department of Physics, University of Milano-Bicocca, Milan 20126, Italy;Institute for Plasma Science and Technology, National Research Council, Milan 20125, Italy
- United Kingdom Atomic Energy Authority, Culham Centre for Fusion Energy, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
- Institute for Plasma Science and Technology, National Research Council, Milan 20125, Italy
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
- Institute of Atomic Physics, Magurele-Bucharest 077125, Romania
- Laboratorio Nacional de Fusión, CIEMAT, Madrid 28040, Spain
- Department of Physics and Astronomy, Uppsala University, Uppsala SE-75120, Sweden
- CEA, IRFM, Saint Paul lez Durance 13115, France
- Laboratory for Plasma Physics, LPP ERM/KMS, Brussels 1000, Belgium
- Department of Physics, University of Milano-Bicocca, Milan 20126, Italy
- Department of Physics, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
- Jožef Stefan Institute, Ljubljana 1000, Slovenia
- Department of Atomic, Molecular and Nuclear Physics, University of Seville, Seville 41012, Spain
- Instituto de Plasmas e Fusao Nuclear, IST, Universidade de Lisboa, Lisboa 1049-001, Portugal
- Institute of Plasma Physics and Laser Microfusion, Warsaw 01-497, Poland
We report a new deuterium–tritium experimental, DTE2, campaign has been conducted at the Joint European Torus (JET) between August 2021 and late December 2021. Motivated by significant enhancements in the past decade at JET, such as the ITER-like wall and enhanced auxiliary heating power, the campaign achieved a new fusion energy world record and performed a broad range of fundamental experiments to inform ITER physics scenarios and operations. New capabilities in the area of fusion product measurements by nuclear diagnostics were available as a result of a decade long enhancement program. These have been tested for the first time in DTE2 and a concise overview is provided here. Confined alpha particle measurements by gamma-ray spectroscopy were successfully demonstrated, albeit with limitations at neutron rates higher than some 1017 n/s. High resolution neutron spectroscopy measurements with the magnetic proton recoil instrument were complemented by novel data from a set of synthetic diamond detectors, which enabled studies of the supra-thermal contributions to the neutron emission. In the area of escaping fast ion diagnostics, a lost fast ion detector and a set of Faraday cups made it possible to determine information on the velocity space and poloidal distribution of the lost alpha particles for the first time. This extensive set of data provides unique information for fundamental physics studies and validation of the numerical models, which are key to inform the physics and scenarios of ITER.
- Research Organization:
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE; European Union (EU); European Commission (EC); Polish Ministry of Science and Higher Education
- Contributing Organization:
- JET Collaboration
- Grant/Contract Number:
- AC02-09CH11466; 101052200
- OSTI ID:
- 1895045
- Journal Information:
- Review of Scientific Instruments, Vol. 93, Issue 9; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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