Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET

G. Bonheure, M. Hult, R. Gonzalez de Orduna, D. Arnold, H. Dombrowski, M. Laubenstein, E. Wieslander, T. Vidmar, P. Vermaercke, Ch. Perez Von Thun, M. Reich, S. Jachmich, A. Murari, S. Popovichev, J. Mlynar, Antti Salmi, O. Asunta, M. Garcia-Munoz, S. Pinches, R. KoslowskiS. Kragh Nielsen, JET EFDA Contributors

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Abstract

In ITER, magnetic fusion will explore the burning plasma regime. Because such burning plasma is sustained by its own fusion reactions, alpha particles need to be confined (Hazeltine 2010 Fusion Eng. Des. 7–9 85). New experiments using d(3He,p)α and d(d,p)t fusion reaction products were performed in JET. Fusion product loss was measured from MHD-quiescent plasmas with a charged particle activation probe installed at a position opposite to the magnetic field ion gradient drift (see figure 1)—1.77 m above mid-plane—in the ceiling of JET tokamak. This new kind of escaping ion detector (Bonheure et al 2008 Fusion Sci. Technol. 53 806) provides for absolutely calibrated measurements. Both the mechanism and the magnitude of the loss are dealt with by this research. Careful analysis shows measured loss is in quantitative agreement with predictions from the classical orbit loss model. However, the comparison with simulated loss radial profile, although improved compared with previous studies in TFTR, Princeton, US (Zweben et al 2000 Nucl. Fusion 40 91), is not fully satisfactory and potential explanations for this discrepancy are examined.
Original languageEnglish
Article number083004
JournalNuclear Fusion
Volume52
Issue number8
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

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reaction products
fusion
ceilings
alpha particles
charged particles
ions
activation
orbits
gradients
probes
detectors
products
profiles
predictions
magnetic fields

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Bonheure, G., Hult, M., Gonzalez de Orduna, R., Arnold, D., Dombrowski, H., Laubenstein, M., ... Contributors, JET. EFDA. (2012). Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET. Nuclear Fusion, 52(8), [083004]. https://doi.org/10.1088/0029-5515/52/8/083004
Bonheure, G. ; Hult, M. ; Gonzalez de Orduna, R. ; Arnold, D. ; Dombrowski, H. ; Laubenstein, M. ; Wieslander, E. ; Vidmar, T. ; Vermaercke, P. ; Perez Von Thun, Ch. ; Reich, M. ; Jachmich, S. ; Murari, A. ; Popovichev, S. ; Mlynar, J. ; Salmi, Antti ; Asunta, O. ; Garcia-Munoz, M. ; Pinches, S. ; Koslowski, R. ; Kragh Nielsen, S. ; Contributors, JET EFDA. / Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET. In: Nuclear Fusion. 2012 ; Vol. 52, No. 8.
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title = "Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET",
abstract = "In ITER, magnetic fusion will explore the burning plasma regime. Because such burning plasma is sustained by its own fusion reactions, alpha particles need to be confined (Hazeltine 2010 Fusion Eng. Des. 7–9 85). New experiments using d(3He,p)α and d(d,p)t fusion reaction products were performed in JET. Fusion product loss was measured from MHD-quiescent plasmas with a charged particle activation probe installed at a position opposite to the magnetic field ion gradient drift (see figure 1)—1.77 m above mid-plane—in the ceiling of JET tokamak. This new kind of escaping ion detector (Bonheure et al 2008 Fusion Sci. Technol. 53 806) provides for absolutely calibrated measurements. Both the mechanism and the magnitude of the loss are dealt with by this research. Careful analysis shows measured loss is in quantitative agreement with predictions from the classical orbit loss model. However, the comparison with simulated loss radial profile, although improved compared with previous studies in TFTR, Princeton, US (Zweben et al 2000 Nucl. Fusion 40 91), is not fully satisfactory and potential explanations for this discrepancy are examined.",
author = "G. Bonheure and M. Hult and {Gonzalez de Orduna}, R. and D. Arnold and H. Dombrowski and M. Laubenstein and E. Wieslander and T. Vidmar and P. Vermaercke and {Perez Von Thun}, Ch. and M. Reich and S. Jachmich and A. Murari and S. Popovichev and J. Mlynar and Antti Salmi and O. Asunta and M. Garcia-Munoz and S. Pinches and R. Koslowski and {Kragh Nielsen}, S. and Contributors, {JET EFDA}",
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Bonheure, G, Hult, M, Gonzalez de Orduna, R, Arnold, D, Dombrowski, H, Laubenstein, M, Wieslander, E, Vidmar, T, Vermaercke, P, Perez Von Thun, C, Reich, M, Jachmich, S, Murari, A, Popovichev, S, Mlynar, J, Salmi, A, Asunta, O, Garcia-Munoz, M, Pinches, S, Koslowski, R, Kragh Nielsen, S & Contributors, JETEFDA 2012, 'Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET', Nuclear Fusion, vol. 52, no. 8, 083004. https://doi.org/10.1088/0029-5515/52/8/083004

Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET. / Bonheure, G.; Hult, M.; Gonzalez de Orduna, R.; Arnold, D.; Dombrowski, H.; Laubenstein, M.; Wieslander, E.; Vidmar, T.; Vermaercke, P.; Perez Von Thun, Ch.; Reich, M.; Jachmich, S.; Murari, A.; Popovichev, S.; Mlynar, J.; Salmi, Antti; Asunta, O.; Garcia-Munoz, M.; Pinches, S.; Koslowski, R.; Kragh Nielsen, S.; Contributors, JET EFDA.

In: Nuclear Fusion, Vol. 52, No. 8, 083004, 2012.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET

AU - Bonheure, G.

AU - Hult, M.

AU - Gonzalez de Orduna, R.

AU - Arnold, D.

AU - Dombrowski, H.

AU - Laubenstein, M.

AU - Wieslander, E.

AU - Vidmar, T.

AU - Vermaercke, P.

AU - Perez Von Thun, Ch.

AU - Reich, M.

AU - Jachmich, S.

AU - Murari, A.

AU - Popovichev, S.

AU - Mlynar, J.

AU - Salmi, Antti

AU - Asunta, O.

AU - Garcia-Munoz, M.

AU - Pinches, S.

AU - Koslowski, R.

AU - Kragh Nielsen, S.

AU - Contributors, JET EFDA

PY - 2012

Y1 - 2012

N2 - In ITER, magnetic fusion will explore the burning plasma regime. Because such burning plasma is sustained by its own fusion reactions, alpha particles need to be confined (Hazeltine 2010 Fusion Eng. Des. 7–9 85). New experiments using d(3He,p)α and d(d,p)t fusion reaction products were performed in JET. Fusion product loss was measured from MHD-quiescent plasmas with a charged particle activation probe installed at a position opposite to the magnetic field ion gradient drift (see figure 1)—1.77 m above mid-plane—in the ceiling of JET tokamak. This new kind of escaping ion detector (Bonheure et al 2008 Fusion Sci. Technol. 53 806) provides for absolutely calibrated measurements. Both the mechanism and the magnitude of the loss are dealt with by this research. Careful analysis shows measured loss is in quantitative agreement with predictions from the classical orbit loss model. However, the comparison with simulated loss radial profile, although improved compared with previous studies in TFTR, Princeton, US (Zweben et al 2000 Nucl. Fusion 40 91), is not fully satisfactory and potential explanations for this discrepancy are examined.

AB - In ITER, magnetic fusion will explore the burning plasma regime. Because such burning plasma is sustained by its own fusion reactions, alpha particles need to be confined (Hazeltine 2010 Fusion Eng. Des. 7–9 85). New experiments using d(3He,p)α and d(d,p)t fusion reaction products were performed in JET. Fusion product loss was measured from MHD-quiescent plasmas with a charged particle activation probe installed at a position opposite to the magnetic field ion gradient drift (see figure 1)—1.77 m above mid-plane—in the ceiling of JET tokamak. This new kind of escaping ion detector (Bonheure et al 2008 Fusion Sci. Technol. 53 806) provides for absolutely calibrated measurements. Both the mechanism and the magnitude of the loss are dealt with by this research. Careful analysis shows measured loss is in quantitative agreement with predictions from the classical orbit loss model. However, the comparison with simulated loss radial profile, although improved compared with previous studies in TFTR, Princeton, US (Zweben et al 2000 Nucl. Fusion 40 91), is not fully satisfactory and potential explanations for this discrepancy are examined.

U2 - 10.1088/0029-5515/52/8/083004

DO - 10.1088/0029-5515/52/8/083004

M3 - Article

VL - 52

JO - Nuclear Fusion

JF - Nuclear Fusion

SN - 0029-5515

IS - 8

M1 - 083004

ER -

Bonheure G, Hult M, Gonzalez de Orduna R, Arnold D, Dombrowski H, Laubenstein M et al. Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET. Nuclear Fusion. 2012;52(8). 083004. https://doi.org/10.1088/0029-5515/52/8/083004