Fusion alpha-particle diagnostics for DT experiments on the joint European torus

Journal Article · Thu Aug 21 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4894029· OSTI ID:22308303

Kiptily, V. G.; Beaumont, P.; Syme, D. B. ^[1]; Belli, F. ^[2]; Cecil, F. E.; Riva, M. ^[3]; Conroy, S.; Ericsson, G. ^[4]; Craciunescu, T. ^[5]; Garcia-Munoz, M. ^[6]; Curuia, M.; Soare, S. ^[7]; Darrow, D. ^[8]; Fernandes, A. M.; Pereira, R. C.; Sousa, J. ^[9]; Giacomelli, L.; Voitsekhovitch, I. ^[10]; Gorini,; Nocente, M. ^[11] ; others, and

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1. Euratom / CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon (United Kingdom)
2. Associazione Euratom -ENEA sulla Fusione, C.R. Frascati, C.P. 65, Frascati (Italy)
3. Colorado School of Mines, Golden, CO (United States)
4. Department of Physics and Astronomy, Uppsala University, BOX 516, Uppsala (Sweden)
5. Association Euratom -MEdC, National Institute for Laser, Plasma and Radiation Physics (Romania)
6. Max-Planck-Institut für Plasmaphysik, EURATOM-Association IPP, Garching, D-85748 (Germany)
7. Association Euratom -MEdC, National Institute for Cryogenics and Isotopic Technology (Romania)
8. Princeton Plasma Physics Lab, Princeton, NJ (United States)
9. Euratom/IST Fusion Association, Centro de Fusão Nuclear, 1049-001 Lisboa (Portugal)
10. CNISM, Dipartimento di Fisica, Universita Milano-Bicocca, Milano (Italy)
11. CNISM, Dipartimento di Fisica, Universita Milano-Bicocca, Milano, Italy and Associazione Euratom -ENEA sulla Fusione, IFP Milano (Italy)

JET equipped with ITER-like wall (a beryllium wall and a tungsten divertor) can provide auxiliary heating with power up to 35MW, producing a significant population of α-particles in DT operation. The direct measurements of alphas are very difficult and α-particle studies require a significant development of dedicated diagnostics. JET now has an excellent set of confined and lost fast particle diagnostics for measuring the α-particle source and its evolution in space and time, α-particle energy distribution, and α-particle losses. This paper describes how the above mentioned JET diagnostic systems could be used for α-particle measurements, and what options exist for keeping the essential α-particle diagnostics functioning well in the presence of intense DT neutron flux. Also, α-particle diagnostics for ITER are discussed.

• OSTI ID: 22308303
• Journal Information: AIP Conference Proceedings, Vol. 1612, Issue 1; Conference: International conference on fusion reactor diagnostics, Varenna (Italy), 9-13 Sep 2013; Other Information: (c) 2014 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
AUXILIARY HEATING
BERYLLIUM
DIVERTORS
ENERGY SPECTRA
ITER TOKAMAK
JET TOKAMAK
NEUTRON FLUX
PARTICLE LOSSES
PARTICLE SOURCES
TUNGSTEN