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Title: Charged fusion product and fast ion loss in TFTR

Abstract

Several different fusion product and fast ion loss processes have been observed in TFTR using an array of pitch angle, energy and time resolved scintillator detectors located near the vessel wall. For D-D fusion products (3 MeV protons and 1 MeV tritons) the observed loss is generally consistent with expected first-orbit loss for Ip < 1.4 MA, except near the outer midplane where stochastic TF ripple loss dominates when Ip > I MA. However, at higher currents, Ip = 1.4--2.5 MA, an NM induced D-D fusion product loss can be up to 3-4 times larger than the first-orbit loss, particularly at high beam powers, P [ge] 25 MW. The MHD induced loss of 100 KeV neutron beam ions and [approximately]0.5 MeV ICRF minority tail tons has also been measured [le] 459 below the outer midplane. be potential implications of these results for D-T alpha particle experiments in TFTR and ITER are described.

Authors:
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  1. Princeton Univ., NJ (United Sta
Publication Date:
Research Org.:
Princeton Univ., NJ (United States). Plasma Physics Lab.
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6495847
Report Number(s):
PPPL-2891; IAEA-CN-56/A-6-3; CONF-920913-29
ON: DE93011494
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Conference
Resource Relation:
Conference: 14. international conference on plasma physics and controlled nuclear fusion research, Wuerzburg (Germany), 30 Sep - 7 Oct 1992
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALPHA PARTICLES; PARTICLE LOSSES; DEUTERIUM IONS; CHARGED-PARTICLE TRANSPORT; ICR HEATING; ITER TOKAMAK; MHD EQUILIBRIUM; PLASMA INSTABILITY; TFTR TOKAMAK; CHARGED PARTICLES; CLOSED PLASMA DEVICES; EQUILIBRIUM; HEATING; HIGH-FREQUENCY HEATING; INSTABILITY; IONS; PLASMA HEATING; RADIATION TRANSPORT; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; 700310* - Plasma Confinement- (1992-); 700330 - Plasma Kinetics, Transport, & Impurities- (1992-)

Citation Formats

Zweben, S J, Darrow, D S, Fredrickson, E D, Mynick, H E, White, R B, Biglari, H, Bretz, N, Budny, R, Bush, C E, Chang, C S, Chen, L, Cheng, C Z, Fu, G Y, Hammett, G W, Hawryluk, R J, Hosea, J, Johnson, L, Mansfield, D, McGuire, K, Medley, S S, Nazikian, R, Owens, D K, Park, H, Park, J, Phillips, C K, Schivell, J, Stratton, B C, Ulrickson, M, Wilson, R, and Young, K M. Charged fusion product and fast ion loss in TFTR. United States: N. p., 1993. Web.
Zweben, S J, Darrow, D S, Fredrickson, E D, Mynick, H E, White, R B, Biglari, H, Bretz, N, Budny, R, Bush, C E, Chang, C S, Chen, L, Cheng, C Z, Fu, G Y, Hammett, G W, Hawryluk, R J, Hosea, J, Johnson, L, Mansfield, D, McGuire, K, Medley, S S, Nazikian, R, Owens, D K, Park, H, Park, J, Phillips, C K, Schivell, J, Stratton, B C, Ulrickson, M, Wilson, R, & Young, K M. Charged fusion product and fast ion loss in TFTR. United States.
Zweben, S J, Darrow, D S, Fredrickson, E D, Mynick, H E, White, R B, Biglari, H, Bretz, N, Budny, R, Bush, C E, Chang, C S, Chen, L, Cheng, C Z, Fu, G Y, Hammett, G W, Hawryluk, R J, Hosea, J, Johnson, L, Mansfield, D, McGuire, K, Medley, S S, Nazikian, R, Owens, D K, Park, H, Park, J, Phillips, C K, Schivell, J, Stratton, B C, Ulrickson, M, Wilson, R, and Young, K M. Mon . "Charged fusion product and fast ion loss in TFTR". United States. https://www.osti.gov/servlets/purl/6495847.
@article{osti_6495847,
title = {Charged fusion product and fast ion loss in TFTR},
author = {Zweben, S J and Darrow, D S and Fredrickson, E D and Mynick, H E and White, R B and Biglari, H and Bretz, N and Budny, R and Bush, C E and Chang, C S and Chen, L and Cheng, C Z and Fu, G Y and Hammett, G W and Hawryluk, R J and Hosea, J and Johnson, L and Mansfield, D and McGuire, K and Medley, S S and Nazikian, R and Owens, D K and Park, H and Park, J and Phillips, C K and Schivell, J and Stratton, B C and Ulrickson, M and Wilson, R and Young, K M},
abstractNote = {Several different fusion product and fast ion loss processes have been observed in TFTR using an array of pitch angle, energy and time resolved scintillator detectors located near the vessel wall. For D-D fusion products (3 MeV protons and 1 MeV tritons) the observed loss is generally consistent with expected first-orbit loss for Ip < 1.4 MA, except near the outer midplane where stochastic TF ripple loss dominates when Ip > I MA. However, at higher currents, Ip = 1.4--2.5 MA, an NM induced D-D fusion product loss can be up to 3-4 times larger than the first-orbit loss, particularly at high beam powers, P [ge] 25 MW. The MHD induced loss of 100 KeV neutron beam ions and [approximately]0.5 MeV ICRF minority tail tons has also been measured [le] 459 below the outer midplane. be potential implications of these results for D-T alpha particle experiments in TFTR and ITER are described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {3}
}

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