Determination of deuterium concentrations in jet plasmas

O. N. Jarvis; B. Balet; J. G. Corday; R. D. Gill; M. J. Loughlin; W. Mandl; P. D. Morgan; D. Pasini; G. Sadler; P. Van Belle; M. Von Hellermann; J. M. Adams; N. Watkins; S. W. Conroy; T. Elevant; H. Weisen

doi:10.1088/0029-5515/30/2/009

Determination of deuterium concentrations in jet plasmas

O. N. Jarvis, B. Balet, J. G. Corday, R. D. Gill, M. J. Loughlin, W. Mandl, P. D. Morgan, D. Pasini, G. Sadler, P. Van Belle, M. Von Hellermann, J. M. Adams, N. Watkins, S. W. Conroy, T. Elevant, H. Weisen

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Abstract

The concentration of deuterium in JET plasmas, expressed as a fraction of the electron concentration, has been determined using eight different methods, four of which involve neutron detection. The results from these various methods are found to be consistent within their experimental errors. The ratio n_D/n_e, measured at the moment of peak neutron emission strength, is found to lie in the range from nearly unity, for discharges into which deuterium pellets are injected, down to values of 0.4 or less, for some of the highest performance discharges. This finding is based on the analysis of discharges run in 1988, when the plasma facing components within the vacuum vessel were of carbon or were carbon coated.

Original language	English
Pages (from-to)	307-315
Number of pages	9
Journal	Nuclear Fusion
Volume	30
Issue number	2
DOIs	https://doi.org/10.1088/0029-5515/30/2/009
State	Published - Feb 1990
Externally published	Yes

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title = "Determination of deuterium concentrations in jet plasmas",

abstract = "The concentration of deuterium in JET plasmas, expressed as a fraction of the electron concentration, has been determined using eight different methods, four of which involve neutron detection. The results from these various methods are found to be consistent within their experimental errors. The ratio nD/ne, measured at the moment of peak neutron emission strength, is found to lie in the range from nearly unity, for discharges into which deuterium pellets are injected, down to values of 0.4 or less, for some of the highest performance discharges. This finding is based on the analysis of discharges run in 1988, when the plasma facing components within the vacuum vessel were of carbon or were carbon coated.",

author = "Jarvis, {O. N.} and B. Balet and Corday, {J. G.} and Gill, {R. D.} and Loughlin, {M. J.} and W. Mandl and Morgan, {P. D.} and D. Pasini and G. Sadler and {Van Belle}, P. and {Von Hellermann}, M. and Adams, {J. M.} and N. Watkins and Conroy, {S. W.} and T. Elevant and H. Weisen",

year = "1990",

month = feb,

doi = "10.1088/0029-5515/30/2/009",

language = "English",

volume = "30",

pages = "307--315",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing",

number = "2",

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TY - JOUR

T1 - Determination of deuterium concentrations in jet plasmas

AU - Jarvis, O. N.

AU - Balet, B.

AU - Corday, J. G.

AU - Gill, R. D.

AU - Loughlin, M. J.

AU - Mandl, W.

AU - Morgan, P. D.

AU - Pasini, D.

AU - Sadler, G.

AU - Van Belle, P.

AU - Von Hellermann, M.

AU - Adams, J. M.

AU - Watkins, N.

AU - Conroy, S. W.

AU - Elevant, T.

AU - Weisen, H.

PY - 1990/2

Y1 - 1990/2

N2 - The concentration of deuterium in JET plasmas, expressed as a fraction of the electron concentration, has been determined using eight different methods, four of which involve neutron detection. The results from these various methods are found to be consistent within their experimental errors. The ratio nD/ne, measured at the moment of peak neutron emission strength, is found to lie in the range from nearly unity, for discharges into which deuterium pellets are injected, down to values of 0.4 or less, for some of the highest performance discharges. This finding is based on the analysis of discharges run in 1988, when the plasma facing components within the vacuum vessel were of carbon or were carbon coated.

AB - The concentration of deuterium in JET plasmas, expressed as a fraction of the electron concentration, has been determined using eight different methods, four of which involve neutron detection. The results from these various methods are found to be consistent within their experimental errors. The ratio nD/ne, measured at the moment of peak neutron emission strength, is found to lie in the range from nearly unity, for discharges into which deuterium pellets are injected, down to values of 0.4 or less, for some of the highest performance discharges. This finding is based on the analysis of discharges run in 1988, when the plasma facing components within the vacuum vessel were of carbon or were carbon coated.

UR - http://www.scopus.com/inward/record.url?scp=0025387756&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/30/2/009

DO - 10.1088/0029-5515/30/2/009

M3 - Article

AN - SCOPUS:0025387756

SN - 0029-5515

VL - 30

SP - 307

EP - 315

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 2

ER -

Determination of deuterium concentrations in jet plasmas

Abstract

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