Zobrazeno 1 - 10
of 18
pro vyhledávání: '"D. P. Grubb"'
Autor:
D. T. Grubb, N. S. Murthy
Publikováno v:
Macromolecules; Jan2010, Vol. 43 Issue 2, p1016-1027, 12p
Publikováno v:
Plasma Physics. 17:271-280
The general theory of linear feedback stabilization of reactive instabilities is extended to include the effects of dissipation in the plasma and frequency-dependence in the sensor suppressor elements and in the external feedback circuit. The theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7c742770c75b67552125741489e075
https://doi.org/10.1088/0032-1028/17/4/004
https://doi.org/10.1088/0032-1028/17/4/004
Autor:
D. P. Grubb
Publikováno v:
Review of Scientific Instruments. 56:947-952
Tandem mirrors control the axial variation of the plasma potential to create electrostatic ‘‘plugs’’ that improve the axial confinement of central cell ions and, in a thermal barrier tandem mirror, control the electron axial heat flow. Measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6b71893573c0b21d6eadb6004f59c1d
https://doi.org/10.1063/1.1138057
https://doi.org/10.1063/1.1138057
Autor:
W.E. Nexsen, D.L. Correll, A.H. Futch, R. H. Munger, John F. Clauser, D. R. Slaughter, R. K. Goodman, F. H. Coensgen, J. C. Davis, C. A. Anderson, B. G. Logan, T. C. Simonen, W.F. Cummins, W. C. Condit, Gary A Hallock, B. W. Stallard, A. L. Hunt, J. H. Foote, R.S. Hornady, O. T. Strand, T. A. Casper, D. P. Grubb, R. P. Drake
Publikováno v:
Physical Review Letters. 44:1132-1135
Results from the tandem mirror experiment are described. The configuration of axial density and potential profiles are created and sustained by neutral-beam injection and gas fueling. Plasma confinement in the center cell is shown to be improved by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5d38a08a7db9d03b9a785fcbbe1c5e6
https://doi.org/10.1103/physrevlett.44.1132
https://doi.org/10.1103/physrevlett.44.1132
Autor:
W.F. Cummins, A.H. Futch, R. P. Drake, D. P. Grubb, D.L. Correll, T. C. Simonen, R. K. Goodman, G.M. Melin, F. H. Coensgen, W.E. Nexsen, J.H. Clauser, W.C. Turner, B. W. Stallard, J. H. Foote
Publikováno v:
Nuclear Fusion. 20:655-664
This paper reports results of experiments in which mirror-confined plasmas with radii as high as 7 ion gyro-radii are produced and maintained by neutral-beam injection. In these plasmas, betas as high as 0.45 were achieved and limited only by the ava
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94dce7fd6f61d8ab2fe76b3ba8a95a0a
https://doi.org/10.1088/0029-5515/20/6/001
https://doi.org/10.1088/0029-5515/20/6/001
Autor:
D. P. Grubb, M.R. Carter, G.D. Porter, E. B. Hooper, John F. Clauser, D.L. Correll, D. N. Hill, A.H. Futch, B. W. Stallard, R.A. James, T. C. Simonen, S.L. Allen, J. H. Foote, R. K. Goodman, W.C. Turner, G. Dimonte, T.A. Casper, J.D. Barter, A.W. Molvik, W.E. Nexsen, T.D. Rognlien, R.S. Hornady, R. D. Wood, E.H. Silver
Publikováno v:
IEEE Transactions on Plasma Science. 16:1-10
Thermal-barrier experiments in the Tandem Mirror Experiment Upgrade (TMX-U) are reported, along with progress made at the Lawrence Livermore National Laboratory in plasma confinement and central-cell heating. Thermal barriers in TMX-U improved axial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdef8b83e856cbd55730fda14cdefe16
https://doi.org/10.1109/27.3782
https://doi.org/10.1109/27.3782
Autor:
T. C. Simonen, T.A. Capser, J.C. Davis, J. H. Foote, W.E. Nexsen, Gary A Hallock, P. Poulsen, W. Condit, A. L. Hunt, R.K. Goodman, D. P. Grubb, R.S. Hornady, F.H. Coensgen, J.F. Clauser, W. L. Pickles, E. B. Hooper, O. T. Strand, R. P. Drake, W.F. Cummins, B. W. Stallard, C. V. Karmendy, P. Coakley, A.H. Futch, A.W. Molvik, D. L. Correll, S.L. Allen
Publikováno v:
Nuclear Fusion. 22:223-234
TMX experimental data on ambipolar potential control and on the accompanying electrostatic confinement are reported. In the radial core of the central cell, measurements of electrostatic potentials of 150 V which augment axial ion confinement are in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7f17c9025061a769fbc66d5ead1a62a
https://doi.org/10.1088/0029-5515/22/2/004
https://doi.org/10.1088/0029-5515/22/2/004
Autor:
S.L. Allen, Robert Bastasz, D. P. Grubb, William R. Wampler, W. L. Hsu, T. C. Simonen, M. E. Rensink
Publikováno v:
Journal of Applied Physics. 58:179-183
The energy and flux of charge‐exchange neutrals from the sloshing ions in the endplug of tandem‐mirror‐experiment upgrade were measured using solid‐state probes. An average energy of the sloshing ions of 6 keV was inferred from the depth prof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61bd61503866b3339777000b4a0b9b71
https://doi.org/10.1063/1.335704
https://doi.org/10.1063/1.335704
Autor:
W. L. Pickles, W. R. Wampler, W.F. Cummins, B. W. Stallard, R. G. Kerr, J. H. Foote, W.E. Nexsen, A.W. Molvik, T. A. Casper, C. A. Clower, W. L. Hsu, P. Poulsen, S.L. Allen, T. L. Yu, C. C. Damm, D.L. Correll, W. Bauer, W.C. Turner, M. E. Rensink, M. Flammer, John F. Clauser, R. H. Munger, R. K. Goodman, A. L. Hunt, T. C. Simonen, R.S. Hornady, D. P. Grubb, F. H. Coensgen, E. B. Hooper, D. Zimmerman, T. J. Orzechowski
Publikováno v:
Physical Review Letters. 50:1668-1671
Tandem-mirror plasma with sloshing-ion end plugs has been produced. Ion-velocity distribution functions are peaked at 47\ifmmode^\circ\else\textdegree\fi{} to the magnetic field lines. Low-level ion-cyclotron fluctuations were detected at 1.8 times t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cac342de737f9f7360a274fcbe9ae68
https://doi.org/10.1103/physrevlett.50.1668
https://doi.org/10.1103/physrevlett.50.1668
Autor:
John F. Clauser, B. W. Stallard, J. H. Foote, S.L. Allen, T. A. Casper, L.V. Berzins, W.E. Nexsen, T. Romesser, B.H. Failor, W. L. Pickles, W.C. Turner, D. P. Grubb, G.W. Leppelmeier, R. G. Kerr, T. Nash, M.R. Carter, G. Dimonte, F. H. Coensgen, C. C. Damm, R. A. James, G.D. Porter, J. M. Moller, J.D. Barter, D.L. Correll, M. Flammer, C.J. Lasnier, E. B. Hooper, T. L. Yu, T. C. Simonen, P. Poulsen, Richard Ellis, A.W. Molvik, A. L. Hunt, W.F. Cummins, R.S. Hornady, T. Christensen, S. Falabella, E.H. Silver, D. N. Hill, R. K. Goodman, C. A. Clower, W. L. Hsu, J. Marilleau
Publikováno v:
Physical Review Letters. 53:783-786
In thermal-barrier experiments in the tandem mirror experiment upgrade axial confinement times of 50 to 100 ms have been achieved. During enhanced confinement we measured the thermal-barrier potential profile using a neutral-particle-beam probe. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99743414f9d788daa66c164aa141dd26
https://doi.org/10.1103/physrevlett.53.783
https://doi.org/10.1103/physrevlett.53.783