George Tynan

Title(s)Professor, Mechanical and Aerospace Engineering
SchoolVc-academic Affairs
Address9500 Gilman Drive #
La Jolla CA 92093
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. How the birth and death of shear layers determine confinement evolution: from the L → H transition to the density limit. Philos Trans A Math Phys Eng Sci. 2023 Feb 20; 381(2242):20210227. Diamond PH, Singh R, Long T, Hong R, Ke R, Yan Z, Cao M, Tynan GR. PMID: 36587820.
      View in: PubMed   Mentions: 1     Fields:    
    2. Machine learning prediction of electron density and temperature from He I line ratios. Rev Sci Instrum. 2021 Feb 01; 92(2):023505. Nishijima D, Kajita S, Tynan GR. PMID: 33648157.
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    3. Compact, portable, laser induced fluorescence diagnostic for laboratory plasma sources. Rev Sci Instrum. 2021 Jan 01; 92(1):013502. Paul MC, Steinberger TE, Lister EAM, Arnold NI, Artis D, Thakur SC, Hall T, LeBlanc S, Scime EE, Thomas E, Tynan GR. PMID: 33514234.
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    4. Prospects for high gain inertial fusion energy: an introduction to the second edition. Philos Trans A Math Phys Eng Sci. 2021 Jan 25; 379(2189):20200028. Norreys PA, Ridgers C, Lancaster K, Koepke M, Tynan G. PMID: 33280563; PMCID: PMC7741012.
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    5. Prospects for high gain inertial fusion energy: an introduction to the first special edition. Philos Trans A Math Phys Eng Sci. 2020 Nov 13; 378(2184):20200006. Norreys PA, Ridgers C, Lancaster K, Koepke M, Tynan G. PMID: 33040658; PMCID: PMC7658753.
      View in: PubMed   Mentions: 1     Fields:    
    6. How might controlled fusion fit into the emerging low-carbon energy system of the mid-twenty-first century? Philos Trans A Math Phys Eng Sci. 2020 Nov 13; 378(2184):20200009. Tynan GR, Abdulla A. PMID: 33040661.
      View in: PubMed   Mentions: 2     Fields:    
    7. Turbulence and jet-driven zonal flows: Secondary circulation in rotating fluids due to asymmetric forcing. Phys Rev E. 2019 Feb; 99(2-1):023108. Burin MJ, Caspary KJ, Edlund EM, Ezeta R, Gilson EP, Ji H, McNulty M, Squire J, Tynan GR. PMID: 30934347.
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    8. Simultaneous measurements of turbulent Reynolds stresses and particle flux in both parallel and perpendicular directions in a linear magnetized plasma device. Rev Sci Instrum. 2018 Oct; 89(10):10J117. Chakraborty Thakur S, Hong R, Tynan GR. PMID: 30399928.
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    9. Tracing the Pathway from Drift-Wave Turbulence with Broken Symmetry to the Production of Sheared Axial Mean Flow. Phys Rev Lett. 2018 May 18; 120(20):205001. Hong R, Li JC, Chakraborty Thakur S, Hajjar R, Diamond PH, Tynan GR. PMID: 29864290.
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    10. Propagation Dynamics Associated with Resonant Magnetic Perturbation Fields in High-Confinement Mode Plasmas inside the KSTAR Tokamak. Phys Rev Lett. 2017 Nov 17; 119(20):205001. Xiao WW, Evans TE, Tynan GR, Yoon SW, Jeon YM, Ko WH, Nam YU, Oh YK, KSTAR team. PMID: 29219375.
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    11. Evaluation of a proposal for reliable low-cost grid power with 100% wind, water, and solar. Proc Natl Acad Sci U S A. 2017 06 27; 114(26):6722-6727. Clack CTM, Qvist SA, Apt J, Bazilian M, Brandt AR, Caldeira K, Davis SJ, Diakov V, Handschy MA, Hines PDH, Jaramillo P, Kammen DM, Long JCS, Morgan MG, Reed A, Sivaram V, Sweeney J, Tynan GR, Victor DG, Weyant JP, Whitacre JF. PMID: 28630353; PMCID: PMC5495221.
      View in: PubMed   Mentions: 16     Fields:    
    12. Fast Low-to-High Confinement Mode Bifurcation Dynamics in a Tokamak Edge Plasma Gyrokinetic Simulation. Phys Rev Lett. 2017 Apr 28; 118(17):175001. Chang CS, Ku S, Tynan GR, Hager R, Churchill RM, Cziegler I, Greenwald M, Hubbard AE, Hughes JW. PMID: 28498701.
      View in: PubMed   Mentions: 1     Fields:    
    13. Turbulence Nonlinearities Shed Light on Geometric Asymmetry in Tokamak Confinement Transitions. Phys Rev Lett. 2017 Mar 10; 118(10):105003. Cziegler I, Hubbard AE, Hughes JW, Terry JL, Tynan GR. PMID: 28339277.
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    14. Laser induced fluorescence measurements of axial velocity, velocity shear, and parallel ion temperature profiles during the route to plasma turbulence in a linear magnetized plasma device. Rev Sci Instrum. 2016 Nov; 87(11):11E513. Chakraborty Thakur S, Adriany K, Gosselin JJ, McKee J, Scime EE, Sears SH, Tynan GR. PMID: 27910698.
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    15. Spatiotemporal splitting of global eigenmodes due to cross-field coupling via vortex dynamics in drift wave turbulence. Phys Rev Lett. 2014 Dec 31; 113(26):265001. Brandt C, Thakur SC, Light AD, Negrete J, Tynan GR. PMID: 25615346.
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    16. Simultaneous use of camera and probe diagnostics to unambiguously identify and study the dynamics of multiple underlying instabilities during the route to plasma turbulence. Rev Sci Instrum. 2014 Nov; 85(11):11E813. Thakur SC, Brandt C, Light A, Cui L, Gosselin JJ, Tynan GR. PMID: 25430378.
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    17. Physics of stimulated L→H transitions. Phys Rev Lett. 2013 May 10; 110(19):195002. Miki K, Diamond PH, Hahn SH, Xiao WW, Gürcan ÖD, Tynan GR. PMID: 23705712.
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    18. Initial results of the high resolution edge Thomson scattering upgrade at DIII-D. Rev Sci Instrum. 2012 Oct; 83(10):10E343. Eldon D, Bray BD, Deterly TM, Liu C, Watkins M, Groebner RJ, Leonard AW, Osborne TH, Snyder PB, Boivin RL, Tynan GR. PMID: 23127000.
      View in: PubMed   Mentions: 1     Fields:    
    19. Comparison of azimuthal ion velocity profiles using Mach probes, time delay estimation, and laser induced fluorescence in a linear plasma device. Rev Sci Instrum. 2012 Oct; 83(10):10D708. Thakur SC, McCarren D, Lee T, Fedorczak N, Manz P, Scime EE, Tynan GR, Xu M, Yu J. PMID: 23126882.
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    20. Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe. Rev Sci Instrum. 2012 Oct; 83(10):10E348. Pollock BB, Meinecke J, Kuschel S, Ross JS, Shaw JL, Stoafer C, Divol L, Tynan GR, Glenzer SH. PMID: 23127005.
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    21. Frequency-resolved nonlinear turbulent energy transfer into zonal flows in strongly heated L-mode plasmas in the HL-2A tokamak. Phys Rev Lett. 2012 Jun 15; 108(24):245001. Xu M, Tynan GR, Diamond PH, Manz P, Holland C, Fedorczak N, Thakur SC, Yu JH, Zhao KJ, Dong JQ, Cheng J, Hong WY, Yan LW, Yang QW, Song XM, Huang Y, Cai LZ, Zhong WL, Shi ZB, Ding XT, Duan XR, Liu Y, HL-2A team. PMID: 23004280.
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    22. Plasma blob generation due to cooperative elliptic instability. Phys Rev Lett. 2011 Nov 04; 107(19):195004. Manz P, Xu M, Müller SH, Fedorczak N, Thakur SC, Yu JH, Tynan GR. PMID: 22181616.
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    23. First evidence of the role of zonal flows for the L-H transition at marginal input power in the EAST tokamak. Phys Rev Lett. 2011 Sep 16; 107(12):125001. Xu GS, Wan BN, Wang HQ, Guo HY, Zhao HL, Liu AD, Naulin V, Diamond PH, Tynan GR, Xu M, Chen R, Jiang M, Liu P, Yan N, Zhang W, Wang L, Liu SC, Ding SY. PMID: 22026773.
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    24. Generation of a sheared plasma rotation by emission, propagation, and absorption of drift wave packets. Phys Rev Lett. 2011 Jul 29; 107(5):055003. Xu M, Tynan GR, Diamond PH, Holland C, Yu JH, Yan Z. PMID: 21867076.
      View in: PubMed   Mentions: 1     Fields:    
    25. Demonstration of a narrow energy spread, ∼0.5  GeV electron beam from a two-stage laser wakefield accelerator. Phys Rev Lett. 2011 Jul 22; 107(4):045001. Pollock BB, Clayton CE, Ralph JE, Albert F, Davidson A, Divol L, Filip C, Glenzer SH, Herpoldt K, Lu W, Marsh KA, Meinecke J, Mori WB, Pak A, Rensink TC, Ross JS, Shaw J, Tynan GR, Joshi C, Froula DH. PMID: 21867013.
      View in: PubMed   Mentions: 17     Fields:    
    26. Thomson-scattering measurements in the collective and noncollective regimes in laser produced plasmas (invited). Rev Sci Instrum. 2010 Oct; 81(10):10D523. Ross JS, Glenzer SH, Palastro JP, Pollock BB, Price D, Tynan GR, Froula DH. PMID: 21033878.
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    27. Spatially distributed scintillator arrays for diagnosing runaway electron transport and energy behavior in tokamaks. Rev Sci Instrum. 2010 Oct; 81(10):10E306. James AN, Hollmann EM, Tynan GR. PMID: 21034005.
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    28. Observation of relativistic effects in collective Thomson scattering. Phys Rev Lett. 2010 Mar 12; 104(10):105001. Ross JS, Glenzer SH, Palastro JP, Pollock BB, Price D, Divol L, Tynan GR, Froula DH. PMID: 20366433.
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    29. Intrinsic rotation from a residual stress at the boundary of a cylindrical laboratory plasma. Phys Rev Lett. 2010 Feb 12; 104(6):065002. Yan Z, Xu M, Diamond PH, Holland C, Müller SH, Tynan GR, Yu JH. PMID: 20366825.
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    30. Multicentimeter long high density magnetic plasmas for optical guiding. Rev Sci Instrum. 2008 Oct; 79(10):10F550. Pollock BB, Froula DH, Tynan GR, Divol L, Price D, Costa R, Yepiz F, Fulkerson S, Mangini F, Glenzer SH. PMID: 19044692.
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    31. A correlation electron cyclotron emission diagnostic and the importance of multifield fluctuation measurements for testing nonlinear gyrokinetic turbulence simulations. Rev Sci Instrum. 2008 Oct; 79(10):103505. White AE, Schmitz L, Peebles WA, Carter TA, Rhodes TL, Doyle EJ, Gourdain PA, Hillesheim JC, Wang G, Holland C, Tynan GR, Austin ME, McKee GR, Shafer MW, Burrell KH, Candy J, DeBoo JC, Prater R, Staebler GM, Waltz RE, Makowski MA. PMID: 19044712.
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    32. Quenching of the nonlocal electron heat transport by large external magnetic fields in a laser-produced plasma measured with imaging thomson scattering. Phys Rev Lett. 2007 Mar 30; 98(13):135001. Froula DH, Ross JS, Pollock BB, Davis P, James AN, Divol L, Edwards MJ, Offenberger AA, Price D, Town RP, Tynan GR, Glenzer SH. PMID: 17501207.
      View in: PubMed   Mentions: 3     Fields:    
    33. Observation of turbulent-driven shear flow in a cylindrical laboratory plasma device. Phys Rev Lett. 2006 May 19; 96(19):195002. Holland C, Yu JH, James A, Nishijima D, Shimada M, Taheri N, Tynan GR. PMID: 16803106.
      View in: PubMed   Mentions: 1     Fields:    
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