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Hawryluk RJ, Mueller D, Hosea J, Barnes CW, Beer M, Bell MG, Bell R, Biglari H, Bitter M, Boivin R, Bretz NL, Budny R, Bush CE, Chen L, Cheng CZ, Cowley S, Dairow DS, Efthimion PC, Fonck RJ, Fredrickson E, Furth HP, Greene G, Grek B, Grisham LR, Hammett G, Heidbrink W, Hill KW, Hoffman D, Hulse RA, Hsuan H, Janos A, Jassby DL, Jobes FC, Johnson DW, Johnson LC, Kamperschroer J, Kesner J, Phillips CK, Kilpatrick SJ, Kugel H, LaMarche PH, LeBlanc B, Manos DM, Mansfield DK, Marmar ES, Mazzucato E, McCarthy MP, Machuzak J, Mauel M, McCune D, McGuire KM, Medley SS, Monticello DR, Mikkelsen D, Nagayama Y, Navratil GA, Nazikian R, Owens DK, Park H, Park W, Paul S, Perkins F, Pitcher S, Rasmussen D, Redi MH, Rewoldt G, Roberts D, Roquemore AL, Sabbagh S, Schilling G, Schivell J, Schmidt GL, Scott SD, Snipes J, Stevens J, Stratton BC, Strachan JD, Stodiek W, Synakowski E, Tang W, Taylor G, Terry J, Timberlake JR, Ulrickson HH, Towner M, von Goeler S, Wieland R, Wilson JR, Wong KL, Woskov P, Yamada M, Young KM, Zamstorff MC, Zweben SJ. Status and Plans for TFTR. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst92-a29907] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. J. Hawryluk
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. Mueller
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Hosea
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - M. Beer
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. G. Bell
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Bell
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Biglari
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. Bitter
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Boivin
- Massachusetts Institute of Technology, Cambridge, MA
| | - N. L. Bretz
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Budny
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - C. E. Bush
- Oak Ridge National Laboratory, Oak Ridge, TN
| | - L. Chen
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - C. Z. Cheng
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. Cowley
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. S. Dairow
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - P. C. Efthimion
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - E. Fredrickson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. P. Furth
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Greene
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - B. Grek
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - L. R. Grisham
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Hammett
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - K. W. Hill
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. Hoffman
- Oak Ridge National Laboratory, Oak Ridge, TN
| | - R. A. Hulse
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Hsuan
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - A. Janos
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. L. Jassby
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - F. C. Jobes
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. W. Johnson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - L. C. Johnson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Kamperschroer
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Kesner
- Massachusetts Institute of Technology, Cambridge, MA
| | - C. K. Phillips
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. J. Kilpatrick
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Kugel
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - P. H. LaMarche
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - B. LeBlanc
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. M. Manos
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. K. Mansfield
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - E. S. Marmar
- Massachusetts Institute of Technology, Cambridge, MA
| | - E. Mazzucato
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. P. McCarthy
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Machuzak
- Massachusetts Institute of Technology, Cambridge, MA
| | - M. Mauel
- Columbia University, New York, NY
| | - D.C. McCune
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - K. M. McGuire
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. S. Medley
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. R. Monticello
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. Mikkelsen
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | | | - R. Nazikian
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. K. Owens
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Park
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - W. Park
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. Paul
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - F. Perkins
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. Pitcher
- Canadian Fusion Fuels Technology Project, Toronto, Canada
| | | | - M. H. Redi
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Rewoldt
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - A. L. Roquemore
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - G. Schilling
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Schivell
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. L. Schmidt
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. D. Scott
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Snipes
- Massachusetts Institute of Technology, Cambridge, MA
| | - J. Stevens
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - B. C. Stratton
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. D. Strachan
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - W. Stodiek
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - E. Synakowski
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - W. Tang
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Taylor
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Terry
- Massachusetts Institute of Technology, Cambridge, MA
| | - J. R. Timberlake
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. H. Ulrickson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. Towner
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. von Goeler
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Wieland
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. R. Wilson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - K. L. Wong
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - P. Woskov
- Massachusetts Institute of Technology, Cambridge, MA
| | - M. Yamada
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - K. M. Young
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. C. Zamstorff
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. J. Zweben
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
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Affiliation(s)
- A. I. Kislyakov
- Ioffe Physical-Technical Institute of Russian Academy of Sciences 194021, St. Petersburg, Russia
| | - A. J. H. Donné
- Association EURATOM-FOM, FOM Institute for Plasma Physics Rijnhuizen Partner in the Trilateral Euregio Cluster, P.O. Box 1207, NL-3430 BE, Nieuwegein, The Netherlands
| | - L. I. Krupnik
- Institute of Plasma Physics, NSC KIPT, 310108, Kharkov, Ukraine
| | - S. S. Medley
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543
| | - M. P. Petrov
- Ioffe Physical-Technical Institute of Russian Academy of Sciences 194021, St.-Petersburg, Russia
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Liu D, Heidbrink WW, Tritz K, Zhu YB, Roquemore AL, Medley SS. Design of solid state neutral particle analyzer array for National Spherical Torus Experiment-Upgrade. Rev Sci Instrum 2014; 85:11E105. [PMID: 25430284 DOI: 10.1063/1.4889913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new compact, multi-channel Solid State Neutral Particle Analyzer (SSNPA) diagnostic based on silicon photodiode array has been designed and is being fabricated for the National Spherical Torus Experiment-Upgrade (NSTX-U). The SSNPA system utilizes a set of vertically stacked photodiode arrays in current mode viewing the same plasma region with different filter thickness to obtain fast temporal resolution (∼120 kHz bandwidth) and coarse energy information in three bands of >25 keV, >45 keV, and >65 keV. The SSNPA system consists of 15 radial sightlines that intersect existing on-axis neutral beams at major radii between 90 and 130 cm, 15 tangential sightlines that intersect new off-axis neutral beams at major radii between 120 and 145 cm. These two subsystems aim at separating the response of passing and trapped fast ions. In addition, one photodiode array whose viewing area does not intersect any neutral beams is used to monitor passive signals produced by fast ions that charge exchange with background neutrals.
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Affiliation(s)
- D Liu
- Department of Physics and Astronomy, University of California - Irvine, Irvine, California 92697, USA
| | - W W Heidbrink
- Department of Physics and Astronomy, University of California - Irvine, Irvine, California 92697, USA
| | - K Tritz
- Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Y B Zhu
- Department of Physics and Astronomy, University of California - Irvine, Irvine, California 92697, USA
| | - A L Roquemore
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - S S Medley
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
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Medley SS, Donné AJH, Kaita R, Kislyakov AI, Petrov MP, Roquemore AL. Contemporary instrumentation and application of charge exchange neutral particle diagnostics in magnetic fusion energy experiments. Rev Sci Instrum 2008; 79:011101. [PMID: 18248015 DOI: 10.1063/1.2823259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
An overview of the developments postcirca 1980s in the instrumentation and application of charge exchange neutral particle diagnostics on magnetic fusion energy experiments is presented. First, spectrometers that employ only electric fields and hence provide ion energy resolution but not mass resolution are discussed. Next, spectrometers that use various geometrical combinations of both electric and magnetic fields to provide both energy and mass resolutions are reviewed. Finally, neutral particle diagnostics based on utilization of time-of-flight techniques are presented.
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Affiliation(s)
- S S Medley
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
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Menard JE, Bell RE, Gates DA, Kaye SM, LeBlanc BP, Levinton FM, Medley SS, Sabbagh SA, Stutman D, Tritz K, Yuh H. Observation of instability-induced current redistribution in a spherical-torus plasma. Phys Rev Lett 2006; 97:095002. [PMID: 17026371 DOI: 10.1103/physrevlett.97.095002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2006] [Indexed: 05/12/2023]
Abstract
A motional Stark effect diagnostic has been utilized to reconstruct the parallel current density profile in a spherical-torus plasma for the first time. The measured current profile compares favorably with neoclassical theory when no large-scale magnetohydrodynamic instabilities are present in the plasma. However, a current profile anomaly is observed during saturated interchange-type instability activity. This apparent anomaly can be explained by redistribution of neutral beam injection current drive and represents the first observation of interchange-type instabilities causing such redistribution. The associated current profile modifications contribute to sustaining the central safety factor above unity for over five resistive diffusion times, and similar processes may contribute to improved operational scenarios proposed for ITER.
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Affiliation(s)
- J E Menard
- Princeton Plasma Physics Laboratory, Princeton, New Jersey, USA
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Fisher RK, McChesney JM, Parks PB, Duong HH, Medley SS, Roquemore AL, Mansfield DK, Budny RV, Petrov MP, Olson RE. Measurements of fast confined alphas on TFTR. Phys Rev Lett 1995; 75:846-849. [PMID: 10060133 DOI: 10.1103/physrevlett.75.846] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Taylor G, Bell MG, Biglari H, Bitter M, Bretz NL, Budny R, Chen L, Darrow D, Efthimion PC, Ernst D, Fredrickson E, Fu GY, Grek B, Grisham L, Hammett G, Hosea JC, Janos A, Jassby D, Jobes FC, Johnson DW, Johnson LC, Majeski R, Mansfield DK, Mazzucato E, Medley SS, Mueller D, Nazikian R, Owens DK, Paul S, Park H, Phillips CK, Rogers JH, Schilling G, Schivell J, Schmidt GL, Stevens JE, Stratton BC, Strachan JD, Synakowski E, Wilson JR, Wong KL, Zweben SJ, Baylor L, Bush CE, Goldfinger RC, Hoffman DJ, Murakami M, Qualls AL, Rasmussen D, Machuzak J, Rimini F, Chang Z. Ion cyclotron range of frequency heating on the Tokamak Fusion Test Reactor*. ACTA ACUST UNITED AC 1993. [DOI: 10.1063/1.860728] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Wong KL, Durst R, Fonck RJ, Paul SF, Roberts DR, Fredrickson ED, Nazikian R, Park HK, Bell M, Bretz NL, Budny R, Cheng CZ, Cohen S, Hammett GW, Jobes FC, Johnson L, Meade DM, Medley SS, Mueller D, Nagayama Y, Owens DK, Sabbagh S, Synakowski EJ. Investigation of global Alfvén instabilities in the Tokamak Fusion Test Reactor. ACTA ACUST UNITED AC 1992. [DOI: 10.1063/1.860462] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Heidbrink WW, Barnes CW, Hammett GW, Kusama Y, Scott SD, Zarnstorff MC, Johnson LC, McCune D, Medley SS, Park HK, Roquemore AL, Strachan JD, Taylor G. The diffusion of fast ions in Ohmic TFTR discharges. ACTA ACUST UNITED AC 1991. [DOI: 10.1063/1.859796] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Jassby DL, Barnes CW, Bell MG, Bitter M, Boivin R, Bretz NL, Budny RV, Bush CE, Dylla HF, Efthimion PC, Fredrickson ED, Hawryluk RJ, Hill KW, Hosea J, Hsuan H, Janos AC, Jobes FC, Johnson DW, Johnson LC, Kamperschroer J, Kieras‐Phillips C, Kilpatrick SJ, LaMarche PH, LeBlanc B, Mansfield DK, Marmar ES, McCune DC, McGuire KM, Meade DM, Medley SS, Mikkelsen DR, Mueller D, Owens DK, Park HK, Paul SF, Pitcher S, Ramsey AT, Redi MH, Sabbagh SA, Scott SD, Snipes J, Stevens J, Strachan JD, Stratton BC, Synakowski EJ, Taylor G, Terry JL, Timberlake JR, Towner HH, Ulrickson M, von Goeler S, Wieland RM, Williams M, Wilson JR, Wong K, Young KM, Zarnstorff MC, Zweben SJ. High‐Qplasmas in the TFTR tokamak. ACTA ACUST UNITED AC 1991. [DOI: 10.1063/1.859988] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Efthimion PC, Barnes CW, Bell MG, Biglari H, Bretz N, Diamond PH, Hammett G, Heidbrink W, Hulse R, Johnson D, Kusama Y, Mansfield D, Medley SS, Nazikian R, Park H, Ramsey A, Rewoldt G, Scott SD, Stratton BC, Synakowski E, Tang WM, Taylor G, Zarnstorff MC, Zweben SJ. Comparison of steady‐state and perturbative transport coefficients in TFTR. ACTA ACUST UNITED AC 1991. [DOI: 10.1063/1.859598] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wong KL, Fonck RJ, Paul SF, Roberts DR, Fredrickson ED, Nazikian R, Park HK, Bell M, Bretz NL, Budny R, Cohen S, Hammett GW, Jobes FC, Meade DM, Medley SS, Mueller D, Nagayama Y, Owens DK, Synakowski EJ. Excitation of toroidal Alfvén eigenmodes in TFTR. Phys Rev Lett 1991; 66:1874-1877. [PMID: 10043332 DOI: 10.1103/physrevlett.66.1874] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Kaita R, White RB, Morris AW, Fredrickson ED, McGuire KM, Medley SS, Murphy TJ, Scott SD. Mode–particle resonances during near‐tangential neutral beam injection in the Tokamak Fusion Test Reactor. ACTA ACUST UNITED AC 1990. [DOI: 10.1063/1.859483] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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McGuire K, Arunasalam V, Barnes CW, Bell MG, Bitter M, Boivin R, Bretz NL, Budny R, Bush CE, Cavallo A, Chu TK, Cohen SA, Colestock P, Davis SL, Dimock DL, Dylla HF, Efthimion PC, Ehrhrardt AB, Fonck RJ, Fredrickson E, Furth HP, Gammel G, Goldston RJ, Greene G, Grek B, Grisham LR, Hammett G, Hawryluk RJ, Hendel HW, Hill KW, Hinnov E, Hoffman DJ, Hosea J, Howell RB, Hsuan H, Hulse RA, Janos AC, Jassby D, Jobes F, Johnson DW, Johnson LC, Kaita R, Kieras‐Phillips C, Kilpatrick SJ, LaMarche PH, LeBlanc B, Manos DM, Mansfield DK, Mazzucato E, McCarthy MP, McCune MC, McNeill DH, Meade DM, Medley SS, Mikkelsen DR, Monticello D, Motley R, Mueller D, Murphy JA, Nagayama Y, Nazakian DR, Neischmidt EB, Owens DK, Park H, Park W, Pitcher S, Ramsey AT, Redi MH, Roquemore AL, Rutherford PH, Schilling G, Schivell J, Schmidt GL, Scott SD, Sinnis JC, Stevens J, Stratton BC, Stodiek W, Synakowski EJ, Tang WM, Taylor G, Timberlake JR, Towner HH, Ulrickson M, von Goeler S, Wieland R, Williams M, Wilson JR, Wong K, Yamada M, Yoshikawa S, Young KM, Zarnstorff MC, Zweben SJ. High‐beta operation and magnetohydrodynamic activity on the TFTR tokamak. ACTA ACUST UNITED AC 1990. [DOI: 10.1063/1.859544] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Strachan JD, Bitter M, Ramsey AT, Zarnstorff MC, Arunasalam V, Bell MG, Bretz NL, Budny R, Bush CE, Davis SL, Dylla HF, Efthimion PC, Fonck RJ, Fredrickson E, Furth HP, Goldston RJ, Grisham LR, Grek B, Hawryluk RJ, Heidbrink WW, Hendel HW, Hill KW, Hsuan H, Jaehnig KP, Jassby DL, Jobes F, Johnson DW, Johnson LC, Kaita R, Kampershroer J, Knize RJ, Kozub T, LeBlanc B, Levinton F, Manos DM, Mansfield DK, McGuire K, McNeill DH, Meade DM, Medley SS, Morris W, Mueller D, Nieschmidt EB, Owens DK, Park H, Schivell J, Schilling G, Schmidt GL, Scott SD, Sesnic S, Sinnis JC, Stauffer FJ, Stratton BC, Tait GD, Taylor G, Towner HH, Ulrickson M, Wieland R, Williams MD, Wong KL, Yoshikawa S, Young KM. High-temperature plasmas in a tokamak fusion test reactor. Phys Rev Lett 1987; 58:1004-1007. [PMID: 10034307 DOI: 10.1103/physrevlett.58.1004] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wong KL, Bitter M, Hammett GW, Heidbrink W, Hendel H, Kaita R, Scott S, Strachan JD, Tait G, Bell MG, Budny R, Bush C, Chan A, Coonrod J, Efthimion PC, England AC, Eubank HP, Fredrickson E, Furth HP, Goldston RJ, Grek B, Grisham L, Hawryluk RJ, Hill KW, Johnson D, Kamperschroer J, Kugel H, Ma C, Mansfield D, Manos D, McCune DC, McGuire K, Medley SS, Mueller D, Nieschmidt E, Owens DK, Paré VK, Park H, Ramsey A, Rasmussen D, Roquemore AL, Schivell J, Sesnic S, Taylor G, Williams MD, Zarnstorff MC. Acceleration of beam ions during major-radius compression in the tokamak fusion test reactor. Phys Rev Lett 1985; 55:2587-2590. [PMID: 10032185 DOI: 10.1103/physrevlett.55.2587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Abstract
Lead toxicity, a man-made disease of young children, has only recently come to the focus of professional and public awareness. Lead has become increasingly bioavailable to humans as a direct result of industrial processing and manufacturing. While lead-based paint in older dwellings is the primary cause of lead toxicity among young children, airborne lead from gasoline fumes and factory emissions, plus dirt and dust into which high concentrations of lead have settled, are also significant sources of undue exposure. A variety of consumer products, including kitchen utensils, newsprint, and cosmetics are likewise potentially hazardous because of their high lead content. Exposure to excessive amounts of lead is especially harmful for young children: they are biologically and developmentally more vulnerable to its toxic effects. Even at levels of absorption that produce no medical symptoms, lead may impede children's overall developmental progress by interfering with their performance in serveral crucial areas. Although the United States has been reluctant to assume an aggressive regulatory position toward lead, the federal government currently supports comprehensive lead poisoning control programs in 60 American cities.
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Abstract
In conventional applications of the radio-frequency quadrupole mass analyzer, the ion injection energy is usually limited to less than the order of 100 eV due to constraints on the dimensions and power supply of the device. However, requirements often arise, for example in fusion plasma ion diagnostics, for mass analysis of much more energetic ions. A technique easily adaptable to any conventional quadrupole analyzer which circumvents the limitation on injection energy is documented in this paper. Briefly, a retarding potential applied to the pole assembly is shown to facilitate mass analysis of multikiloelectron volt ions without altering the salient characteristics of either the quadrupole filter or the ion beam.
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Affiliation(s)
- S S Medley
- Fusion Research Center, The University of Texas at Austin, Austin, Texas 78712
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