Zobrazeno 1 - 10
of 85
pro vyhledávání: '"W. K. Dagenhart"'
Autor:
J. H. Whealton, C. C. Tsai, H. H. Haselton, W. K. Dagenhart, M. A. Akerman, J. J. Donaghy, W. L. Stirling, W. R. Becraft, D. E. Schechter
Publikováno v:
Review of Scientific Instruments. 61:783-787
The emittances of hydrogen and deuterium negative ion beams produced by volume ion sources have been measured in a transverse plane normal to the beam trajectory. The extraction voltage was varied from 10 to 40 kV, and the transverse magnetic field i
Autor:
W. K. Dagenhart H.H. Haselton, J.H. Whealton, R. J. Raridon, K. E. Rothe, M. A. Akerman, G.E. McMichael, G.C. Barber, W. R. Becraft, B.D. Murphy, P.M. Ryan, W. L. Stirling, T.P. Wangler, A. Schempp
Publikováno v:
Fusion Technology. 15:734-739
The next-generation fusion devices based on the tokamak confinement concept are expected to emphasize steady-state operation. Such future reactors may include designs like the International Thermonuclear Experimental Reactor (ITER) and that of the re
Autor:
W. K. Dagenhart, T. C. Tucker
Publikováno v:
Journal of Applied Physics. 56:22-28
An ion beam raster scanning method utilizing a wide gap dipole magnet has been developed at the Oak Ridge National Laboratory that can reduce the time‐averaged amplitude of the ion beam power density on the ion beam dump by factors of 3 to 6. Time
Autor:
S.W. Schwenterly, R. E. Wright, J. H. Whealton, C. C. Tsai, N. S. Ponte, H. H. Haselton, M. M. Menon, G. C. Barber, W. K. Dagenhart, W. L. Stirling, W. R. Becraf, R. C. Davis, J. Kim, P. M. Ryan, W. L. Gardner, C. W. Blue, D. E. Schechter
Publikováno v:
IEEE Transactions on Nuclear Science. 26:1281-1286
Ion beam technology has advanced immensely during the past 15 years in connection with the application of neutral beam injection heating for fusion research. Ion sources have been scaled up along with necessary modifications, yielding currently a few
Autor:
G. C. Barber, D. E. Schechter, J. H. Whealton, N. S. Ponte, R. E. Wright, M. M. Menon, H. H. Haselton, W. K. Dagenhart, C. C. Tsai, C. W. Blue, P.M. Ryan, W. L. Gardner, W. L. Stirling, J. Kim
Publikováno v:
Review of Scientific Instruments. 52:1625-1628
Experimental comparison is made of four plasma grids, each with a specific aperture geometry, in an attempt to improve the ion optics of a multiple aperture ion source. It is clearly shown that a simple notch geometry outperforms the other candidates
Autor:
W. L. Stirling, J. Kim, J. H. Whealton, D. E. Schechter, R. C. Davis, W. L. Gardner, P. M. Ryan, C. C. Tsai, W. K. Dagenhart, H. H. Haselton, M. M. Menon
Publikováno v:
Journal of Applied Physics. 50:2484-2489
The results of a systematic investigation of the power flow along the Oak Ridge National Laboratory/Princeton Large Torus (ORNL/PLT) neutral beam line, using an intense modified duoPIGatron source with a 22‐cm active grid diameter and 1799 circular
Autor:
J. Kim, W. L. Gardner, C. C. Tsai, H. H. Haselton, M. M. Menon, W. K. Dagenhart, N. S. Ponte, R. R. Feezell, J. H. Whealton, G. C. Barber, W. L. Stirling
Publikováno v:
IEEE Transactions on Nuclear Science. 28:1319-1322
The injection of neutral hydrogen or deuterium particles continues to be the most promising means of heating magnetically confined fusion plasmas to ignition temperatures. Neutral beam injection systems that employ positive ion sources presently oper
Autor:
R. E. Wright, W. L. Gardner, D. E. Schechter, G. C. Barber, C. C. Tsai, N. S. Ponte, J. H. Whealton, M. M. Menon, C. W. Blue, J. Kim, W. K. Dagenhart, W. L. Stirling, H. H. Haselton, P.M. Ryan
Publikováno v:
Review of Scientific Instruments. 53:424-431
The properties of an intense 50‐kV neutral‐beam system are discussed. The salient features of this system are a transmission efficiency of 76% of the extracted ion beam through a 30×34 cm aperture that is 4.5 m from the ion source, a transmitted
Autor:
D.J. Taylor, b C. W. Blue, S.K. Combs, W. K. Dagenhart, W. L. Gardner, D. E. Schechter, P.M. Ryan, c L. W. Owen, W. L. Stirling, P. H. Hayes, H. H. Haselton, N. S. Ponte, J.A. Moeller, C. R. Stewart, J.H. Whealton, D.J. Hoffman, W. R. Becraft
Publikováno v:
Nuclear Technology - Fusion. 4:1448-1452
Conceptual and preliminary engineering design for the National RF Test Facility at Oak Ridge National Laboratory (ORNL) has been completed. The facility will comprise a single mirror configuration embodying two superconducting development coils from
Autor:
W. K. Dagenhart, P.M. Ryan, R. E. Wright, M. M. Menon, J. H. Whealton, H. H. Haselton, S.K. Combs, W. L. Gardner, D. E. Schechter, G. C. Barber, C. C. Tsai, W. L. Stirling, N. S. Ponte
Publikováno v:
Review of Scientific Instruments. 56:242-249
A quasi‐steady‐state (pulse duration of 30 s) ion source of the duoPIGatron type has been developed for fusion applications. It was designed to deliver an 80‐keV hydrogen ion beam of low beamlet divergence (Θrms= 0.26°) at a current density o