Publications of Ronald Lehmer

 

First Author Papers

 

1. R. D. Lehmer, T. A. Mulera, V. Perez-Mendez, G. Schnurmacher, "Reduction of dead times and dead zones in the self-quenching streamer mode at high pressures and high quencher concentrations." (1984 Nuclear Science Symposium and 1984 Symposium on Nuclear Power Systems, Orlando, FL, USA, 31 Oct.-2 Nov. 1984). IEEE Transactions on Nuclear Science NS-32 (1985) 526-8.

2. R. D. Lehmer, A fast spatial scanning emissive and mach probe for edge plasma diagnosis. Master's Thesis, UCLA (1989).

3. R. D. Lehmer, G. J. Gunner, R. W. Conn, "PHiDAS: a two dimensional Langmuir probe array and high capacity CAMAC based data acquisition system." (Tenth Topical Conference on High-Temperature Plasma Diagnostics, Rochester, NY, USA, 8-12 May 1994). Review of Scientific Instruments 66 (1995) 523-5.

4. R. D. Lehmer, Study of the Effect of Radial Electric Fields on Electrostatic Turbulence. Ph. D. Dissertation, UCLA (1996) (UC-San Diego Report UCSD-ENG-032)

5. R. D. Lehmer and W. W. Y. Chung, "Image Dynamic Measurement System (IDMS-2) for Flight Simulation Fidelity Verification." Proceedings of the AIAA Modeling and Simulation Technologies Conference, Portland, OR, August 9-11, 1999, paper AIAA-99-4035.

 

Publications with Other Authors

 

6. Y. Hirooka, R. W. Conn, D. M. Goebel, B. LaBombard, R. Lehmer, W. K. Leung, R. E. Nygren, and Y. Ra, "Deuterium pumping and erosion behavior of selected graphite materials under high flux plasma bombardment in PISCES-A-effects of surface pores and machined grooves." (Proceedings of the 8th International Conference on Plasma- Surface Interactions in Controlled Fusion Devices. 8th PSI 1988, Julich, West Germany, 2-6 May 1988). Journal of Nuclear Materials 162-164 (1989) 1004-12.

7. B. LaBombard, R. W. Conn, Y. Hirooka, R. Lehmer, W. K. Leung, R. E. Nygren, Y. Ra, G. Tynan, and K. S. Chung, "Presheath profiles in simulated Tokamak edge plasmas." (Proceedings of the 8th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices. 8th PSI 1988, Julich, West Germany, 2-6 May 1988). Journal of Nuclear Materials 162-164 (1989) 314-21.

8. Y. Hirooka, R. W. Conn, T. Sketchley, W. K. Leung, et al., "A new plasma-surface interactions research facility: PISCES-B and first materials erosion experiments on bulk-boronized graphite." (36th National Symposium of the American Vacuum Society, Boston, MA, USA, 23-27 Oct. 1989). Journal of Vacuum Science & Technology A (Vacuum, Surfaces, and Films) 8 (1990) 1790-7.

9. R. E. Nygren, J. Bohdansky, A. Pospieszczyk, R. Lehmer, et al., "Radiation-enhanced sublimation of graphite in PISCES experiments." (36th National Symposium of the American Vacuum Society, Boston, MA, USA, 23-27 Oct. 1989). Journal of Vacuum Science & Technology A (Vacuum, Surfaces, and Films) 8 (1990) 1778-82.

10. D. N. Hill, A. Futch, D. Buchenauer, R. Doerner, et al., "Plasma diagnostics for the DIII-D divertor upgrade." (8th Topical Conference on High Temperature Plasma Diagnostics, Hyannis, MA, USA, 6-10 May 1990). Review of Scientific Instruments 61 (1990) 3308 and 3548-51.

11. T. Shoji, A. Grossman, R. Conn, Y. Hirooka, R. Lehmer, W. Leung, L. Schmitz, and G. Tynan, "Novel technique for edge plasma control by RF ponderomotive force." (Ninth International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Bournemouth, UK, 21-25 May 1990). Journal of Nuclear Materials 176-177 (1990) 830-6.

12. L. Schmitz, R. Lehmer, G. Chevalier, G. Tynan, P. Chia, R. Doerner, and R. W. Conn, "Experimental simulation of the gaseous divertor concept in PISCES-A." (Ninth International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Bournemouth, UK, 21-25 May 1990). Journal of Nuclear Materials 176-177 (1990) 522-7.

13. R. E. Nygren, J. Bohdansky, A. Pospieszczyk, R. Lehmer, Y. Ra, R. W. Conn, R. Doerner, W. K. Leung, and L. Schmitz, "Low energy data on radiation enhanced sublimation of graphite." (Ninth International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Bournemouth, UK, 21-25 May 1990). Journal of Nuclear Materials 176-177 (1990) 445-9.

14. T. Shoji, R. Conn, A. Grossman, Y. Hirooka, R. Lehmer, "New method for edge plasma control by RF ponderomotive force." Plasma Science Center, Nagoya Univ. report PSC-9.

15. R. Taylor, R. Conn, B. Fried, R. Lehmer, J. Liberati, P. Pribyl, L. Schmitz, G. Tynan, B. Wells, D. Darrow, and M. Ono, "Enhanced Confinement in CCT and PISCES-A in the Presence of Radial Electric Fields." in Plasma Physics and Controlled Nuclear Fusion Research 1990 (13th Conf. Proc., Washington, DC) (1991) IAEA, Vol. I, p.463.

16. R. A. Moyer, J. G. Watkins, R. W. Conn, R. Doerner, D. N. Hill, R. Lehmer, R. T. McGrath, L. Schmitz, R. D. Stambaugh, and G. Tynan, "ExB transport in the DIII-D boundary plasma." (Tenth International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Monterey, CA, USA, 30 March-3 April 1992). Journal of Nuclear Materials 196-198 (1992) 854-9.

17. L. Schmitz, L. Blush, G. Chevalier, R. Lehmer, Y. Hirooka, P. Chia, G. Tynan, and R. W. Conn, "Impurity transport and retention in a gas target divertor: simulation experiments in PISCES-A and modeling results." (Tenth International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Monterey, CA, USA, 30 March-3 April 1992). Journal of Nuclear Materials 196-198 (1992) 841-7.

18. J. G. Watkins, R. A. Moyer, D. N. Hill, D. Buchenauer, T. N. Carlstrom, R. Conn, J. Cuthbertson, R. Doerner, R. Lehmer, M. A. Mahdavi, R. T. McGrath, L. Schmitz, and R. Stambaugh, "Scrape-off layer measurements in DIII-D." (Tenth International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Monterey, CA, USA, 30 March-3 April 1992). Journal of Nuclear Materials 196-198 (1992) 829-32.

19. G. R. Tynan, L. Schmitz, R. W. Conn, R. Doerner, and R. Lehmer, "Steady-state convection and fluctuation-driven particle transport in the H-mode transition." Physical Review Letters 68 (1992) 3032-5.

20. J. G. Watkins, J. Salmonson, R. Moyer, R. Doerner, R. Lehmer, L. Schmitz, and D. N. Hill, "A fast scanning probe for DIII-D." (Ninth Topical Conference on High Temperature Plasma Diagnostics, Santa Fe, NM, USA, 15-19 March 1992). Review of Scientific Instruments 63 (1992) 4728-30.

21. S. Bernabei, R. Bell, M. Chance, T. K. Chu, et al., "Experimental exploration of profile control in the Princeton beta experiment-modified (PBX-M) tokamak." (34th Annual Meeting of the Division of Plasma Physics of the American Physical Society, Seattle, WA, USA, 16-20 Nov. 1992). Physics of Fluids B (Plasma Physics) 5 (1993) 2562-70.

22. G. R. Tynan, L. Schmitz, L. Blush, J. A. Boedo, et al., "The physics of transport barrier formation in the PBX-M H-mode." (4th H-Mode Workshop (IAEA Technical Committee Meeting on H-Mode Physics), Ibaraki, Japan, 15-17 Nov. 1993). Plasma Physics and Controlled Fusion 36 (1994) A285-90.

23. G. R. Tynan, L. Schmitz, L. Blush, J. A. Boedo, R. W. Conn, R. Doerner, R. Lehmer, R. Moyer, H. Kugel, R. Bell, S. Kaye, M. Okabayashi, S. Sesnic, Y. Sun, and the PBX-M Group, "Turbulent edge transport in the Princeton Beta Experiment-Modified high confinement mode." Physics of Plasmas 1 (1994) 3301-7.

24. A. Grossman, L. Schmitz, B. Merriman, R. Lehmer, et al., "Neutral transport in a gas target divertor: experimental simulation in PISCES-A and DEGAS modeling results." (11th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Mito, Japan, 23-27 May 1994). Journal of Nuclear Materials, 220-222 (1995) 274-8.

25. R. A. Moyer, K. H. Burrell, T. N. Carlstrom, S. Coda, R. W. Conn, E. J. Doyle, P. Gohil, R. J. Groebner, J. Kim, R. Lehmer, W. A. Peebles, M. Porkolab, C. L. Rettig, T. L. Rhodes, R. P. Seraydarian, R. Stockdale, D. M. Thomas, G. R. Tynan, and J. G. Watkins, "Beyond paradigm: Turbulence, transport, and the origin of the radial electric field in low to high confinement mode transitions in the DIII-D tokamak." Physics of Plasmas 2 (1995) 2397-2407.

26. L. Schmitz, B. Merriman, L. Blush, R. Lehmer, et al., "Plasma and neutral dynamics in a simulated tokamak gas target divertor." Physics of Plasmas 2 (1995) 3081-94.

27. R. D. Bengston, R. Bell, L. Blush, J. A. Boedo, R. W. Conn, D. B. Crockett, E. de la Luna, R. Doerner, I. Garcia-Cortes, K. W. Gentle, C. Hidalgo, S. Kaye, H. Kugel, R. Lehmer, G. X. Li, H. Lin, M. Meier, A. G. Meigs, R. Moyer, M. Okabayashi, B. Richards, W. L. Rowan, J. Sanchez, L. Schmitz, A. Sen, S. Sesnic, Y. Sun, H. Y. W. Tsui, G. R. Tynan, T. Uckan, J. Uglum, D. L. Winslow, A. J. Wootton, V. Zhuravlev, and the PBX-M Team, "Control of Edge Turbulence in PBX-M and TEXT-U." in Plasma Physics and Controlled Nuclear Fusion Research 1994, Vienna, Austria, IAEA (1995) 569-74, Vol. 1

28. R. A. Moyer, R. D. Lehmer, T. E. Evans, R. W. Conn, and L. Schmitz, "Nonlinear analysis of turbulence across the L to H transition." Plasma Physics and Controlled Fusion, 38 (1996) 1273-8.

29. J. G. Watkins, J. Hunter, B. Tafoya, M. Ulrickson, R. D. Watson, R. A. Moyer, J. W. Cuthbertson, G. Gunner, R. Lehmer, P. Luong, D. N. Hill, M. Mascaro, J. I. Robinson, R. Snider, and R. Stambaugh, "Fast reciprocating Langmuir probe for the DIII-D divertor." (Eleventh Topical Conference on High-Temperature Plasma Diagnositcs). Rev. Sci. Instrum. 68 (1997) 373-6.

30. A. W. Leonard, G. D. Porter, R. D. Wood, S. L. Allen, J. Boedo, N. H. Brooks, T. E. Evans, M. E. Fenstermacher, D. N. Hill, R. C. Isler, C. J. Lasiner, R. D. Lehmer, M. A. Mahdavi, R. Maingi, R. A. Moyer, T. W. Petrie, M. J. Schaffer, M. R. Wade, J. G. Watkins, W. P. West, and D. G. Whyte, "Radiative divertor plasmas with convection in DIII-D." Physics of Plasma, 5 (1998) 1736-43.

31. T. L. Rhodes, W. A. Peebles, E. J. Doyle, P. Pribyl, M. Gilmore, R. A. Moyer, and R. D. Lehmer, "Signal amplitude effects on reflectometer studies of density turbulence in tokamaks." Plasma Physics and Controlled Fusion 40 (1998) 493-510.

32. J. A. Boedo, G. D. Porter, M. J. Schaffer, R. Lehmer, R. A. Moyer, J. G. Watkins, T. E. Evans, C. J. Lasiner, A. W. Leonard, S. L. Allen, "Flow reversal, convection, and modeling in the DIII-D divertor." Physics of Plasmas 5 (1998) 4305-10.

33. M. E. Fenstermacher, J. Boedo, R. C. Isler, A. W. Leonard, G. D. Porter, D. G. Whyte, R. D. Wood, S. L. Allen, N. H. Brooks, R. Colchin, T. E. Evans, D. N. Hill, C. J. Lasnier, R. D. Lehmer, M. A. Mahdavi, R. Maingi, R. A. Moyer, T. W. Petrie, T. D. Rognlien, M. J. Schaffer, R. D. Stambaugh, M. R. Wade, J. G. Watkins, W. P. West, and N. Wolf, "Physics of the detached radiative divertor regime in DIII-D." (25th European Physical Society Conference on Controlled Fusion and Plasma Physics and International Congress on Plasma Physics, Prague, Czech Republic, 29 June-3 July 1998), Plasma Physics and Controlled Fusion 41 (1999) A345-55.

34. M. R. Wade, W. P. West, R. D. Wood, S. L. Allen, J. A. Boedo, N. H. Brooks, M. E. Fenstermacher, D. N. Hill, J. T. Hogan, R. C. Isler, G. L. Jackson, C. J. Lasnier, R. Lehmer, A. W. Leonard, M. A. Mahdavi, R. Maingi, R. A. Moyer, T. H. Osborne, T. W. Petrie, M. J. Schaffer, R. D. Stambaugh, J. G. Watkins, D. G. Whyte, "Impurity enrichment and radiative enhancement using induced SOL flow in DIII-D." (13th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, San Diego, CA, 18-22 May 1998), Journal of Nuclear Materials 266-269 (1999) 44-50.

35. J. A. Boedo, R. D. Lehmer, R. A. Moyer, J. G. Watkins, G. D. Porter, T. E. Evans, A. W. Leonard, M. J. Schaffer, "Measurements of flows in the DIII-D divertor by Mach probes." (13th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, San Diego, CA, 18-22 May 1998), Journal of Nuclear Materials 266-269 (1999) 783-787.

36. J. G. Watkins, O. Batishchev, J. Boedo, D. N. Hill, C. J. Lasnier, R. Lehmer, A. W. Leonard, R. A. Moyer, "An evaluation of kinetic effects in the DIII-D divertor." (13th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, San Diego, CA, 18-22 May 1998), Journal of Nuclear Materials 266-269 (1999) 980-985.

37. R. A. Moyer, R. Lehmer, J. A. Boedo, J. G. Watkins, X. Xu, J. R. Myra, R. Cohen, D. A. D'Ippolito, T. W. Petrie, M. J. Schaffer, "Potentials, ExB drifts, and fluctuations in the DIII-D boundary." (13th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, San Diego, CA, 18-22 May 1998), Journal of Nuclear Materials 266-269 (1999) 1145-1150.

38. S. C. Luckhardt, R. W. Harvey, O. V. Batishchev, A. A. Batisheva, J. Cuthbertson, R. Doerner, A. Grossman, R. Lehmer, L. Blush, D. G. Whyte, "Broadening of the parallel and perpendicular ion energy spectrum and correlation with turbulent potential fluctuations in a linear magnetized plasma." (13th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, San Diego, CA, 18-22 May 1998), Journal of Nuclear Materials 266-269 (1999) 1285-1289.

39. T. L. Rhodes, R. A. Moyer, R. Groebner, E. J. Doyle, R. Lehmer, W. A. Pebbles, C. L. Rettig, "Experimental evidence for self-organized criticality in tokamak plasma turbulence." Physics Letters A 253 (1999) 181-6.