Self‐consistent background gas density calculation in a multichambered neutral beam line

1977 ◽  
Vol 14 (6) ◽  
pp. 1303-1306
Author(s):  
Raynard A. Jong
Keyword(s):  
Beam Line ◽  
Neutral Beam ◽  
Gas Density ◽  
Density Calculation ◽  
Self Consistent ◽  
Background Gas

scholarly journals Experimental Database and Design Concept for a 1-MW, 200-Kev Neutral Beam Line Based on a Sitex Negative Ion Source

1983 ◽  
Vol 4 (2P3) ◽  
pp. 1430-1435 ◽  
Author(s):  
W. K. Dagenhart ◽  
W. L. Gardner ◽  
W. L. Stirling ◽  
J. H. Whealton
Keyword(s):  
Ion Source ◽  
Beam Line ◽  
Design Concept ◽  
Negative Ion ◽  
Neutral Beam ◽  
Experimental Database

scholarly journals Hydrodynamic Hamilton theory for discussing the space charge (Langmuir–Child Law) at high density particle currents between poles

1988 ◽  
Vol 6 (3) ◽  
pp. 579-586 ◽  
Author(s):  
Cord Passow
Keyword(s):  
Space Charge ◽  
Charge Carriers ◽  
The Self ◽  
Density Functions ◽  
Space Charge Limited Current ◽  
Stationary Plasma ◽  
Self Consistent ◽  
Solution Methods ◽  
Background Gas ◽  
Systematic Derivation

In order to calculate more generally the space-charge limited current between two points of different voltage, modern differential geometrical methods are applied. This problem was first treated by Child (1911) and later by Langmuir (1913). It is possible, for example, to account for effects due to more than one charge component as well as the influence of a neutral background gas (which causes ionization and scattering of charge carriers). A systematic derivation of the self-consistent representation based on a Hamilton theory for density functions is given, and solution methods are discussed. The concept is designed to investigate ion and electron diodes with very intense currents, but it may also be useful for treating space charge problems in a stationary plasma.

Design of Neutral Beam-Line of EAST

2011 ◽  
Vol 13 (5) ◽  
pp. 541-545 ◽  
Author(s):  
Chundong Hu ◽  
Lizhen Liang ◽  
Yuanlai Xie ◽  
Jianglong Wei ◽  
Yahong Xie ◽  
...  
Keyword(s):  
Beam Line ◽  
Neutral Beam

scholarly journals Conceptual design of a 200 keV, 1 MW negative-ion-based neutral beam line

1983 ◽  
Vol 3 (1) ◽  
pp. 67-76 ◽  
Author(s):  
D. A. Goldberg ◽  
O. A. Anderson ◽  
W. S. Cooper ◽  
J. T. Tanabe
Keyword(s):  
Conceptual Design ◽  
Beam Line ◽  
Negative Ion ◽  
Neutral Beam

Density-dependent reduction of nitric oxide diffusing capacity after pneumonectomy

2003 ◽  
Vol 94 (5) ◽  
pp. 1926-1932 ◽  
Author(s):  
Connie C. W. Hsia ◽  
Xiao Yan ◽  
D. Merrill Dane ◽  
Robert L. Johnson
Keyword(s):  
Nitric Oxide ◽  
Sulfur Hexafluoride ◽  
Diffusing Capacity ◽  
Gas Mixing ◽  
Age At Maturity ◽  
Gas Density ◽  
Density Dependent ◽  
Diffusive Resistance ◽  
Fractional Reduction ◽  
Background Gas

Airway lengthening after pneumonectomy (PNX) may increase diffusive resistance to gas mixing (1/DG); the effect is accentuated by increasing acinar gas density but is difficult to detect from lung CO-diffusing capacity (Dl CO). Because lung NO-diffusing capacity (Dl NO) is three- to fivefold that of Dl CO, whereas 1/DG for NO and CO are similar, we hypothesized that a density-dependent fractional reduction would be greater for Dl NO than for Dl CO. We measured Dl NOand Dl CO at two tidal volumes (Vt) and with three background gases [helium (He), nitrogen (N2), and sulfur hexafluoride (SF6)] in immature dogs 3 and 9 mo after right PNX (5 and 11 mo of age). At maturity (11 mo), background gas density had no effect on Dl NO, Dl CO, or Dl NO-to-Dl CO ratio in sham controls. In PNX animals, Dl NO declined 25–50% in SF6 relative to He and N2, and Dl NO/Dl CO declined ∼50% in SF6 relative to He at a Vt of 15 ml/kg, consistent with a significant 1/DG. At 5 mo of age, Dl NO/Dl CO declined 25–45% in SF6 relative to He and N2 in both groups, but Dl CO increased paradoxically in SF6 relative to N2 or He by 20–60%. Findings suggest that SF6, besides increasing 1/DG, may redistribute ventilation and/or enhance acinar penetration of the convective front.

scholarly journals Doppler‐shifted neutral beam line shape and beam transmission

1995 ◽  
Vol 66 (1) ◽  
pp. 130-138 ◽  
Author(s):  
J. H. Kamperschroer ◽  
L. R. Grisham ◽  
N. Kokatnur ◽  
L. J. Lagin ◽  
R. A. Newman ◽  
...  
Keyword(s):  
Line Shape ◽  
Beam Line ◽  
Neutral Beam ◽  
Beam Transmission

scholarly journals ISX-B neutral beam injector experiment on a prototype beam line

1980 ◽  
Vol 51 (4) ◽  
pp. 1984 ◽  
Author(s):  
J. Kim ◽  
W. L. Stirling ◽  
M. M. Menon ◽  
W. K. Dagenhart ◽  
G. C. Barber ◽  
...  
Keyword(s):  
Beam Line ◽  
Neutral Beam ◽  
Neutral Beam Injector

Guidelines for remote handling maintenance of ITER neutral beam line components: Proposal of an alternate supporting system

2007 ◽  
Vol 82 (15-24) ◽  
pp. 2015-2020 ◽  
Author(s):  
J.J. Cordier ◽  
P. Bayetti ◽  
R. Hemsworth ◽  
O. David ◽  
J.P. Friconneau
Keyword(s):  
Beam Line ◽  
Neutral Beam ◽  
Supporting System ◽  
Remote Handling
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