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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:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ;  [1]; ; ;  [2]; ;  [3]; ;  [4];  [5] « less
  1. Princeton Univ., NJ (United States). Plasma Physics Lab.
  2. Massachusetts Inst. of Tech., Cambridge, MA (United States)
  3. General Atomics, San Diego, CA (United States)
  4. Wisconsin Univ., Madison, WI (United States)
  5. Los Alamos National Lab., NM (United States)
Publication Date:
Research Org.:
Princeton Univ., NJ (United States). Plasma Physics Lab.
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10146478
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,Wurzburg (Germany),30 Sep - 7 Oct 1992; Other Information: PBD: Mar 1993
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALPHA PARTICLES; PARTICLE LOSSES; DEUTERIUM IONS; TFTR TOKAMAK; ITER TOKAMAK; MHD EQUILIBRIUM; PLASMA INSTABILITY; ICR HEATING; CHARGED-PARTICLE TRANSPORT; 700310; 700330; PLASMA CONFINEMENT; PLASMA KINETICS, TRANSPORT, AND IMPURITIES

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, Young, K M, Boivin, R, Machuzak, J S, Woskov, P, Fisher, R, McChesney, J, Fonck, R, McKee, G, and Tuszewski, 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, Boivin, R, Machuzak, J S, Woskov, P, Fisher, R, McChesney, J, Fonck, R, McKee, G, & Tuszewski, 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, Young, K M, Boivin, R, Machuzak, J S, Woskov, P, Fisher, R, McChesney, J, Fonck, R, McKee, G, and Tuszewski, M. Mon . "Charged fusion product and fast ion loss in TFTR". United States. https://www.osti.gov/servlets/purl/10146478.
@article{osti_10146478,
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 and Boivin, R and Machuzak, J S and Woskov, P and Fisher, R and McChesney, J and Fonck, R and McKee, G and Tuszewski, 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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