Public Website for J.D. Callen, UW-Madison, callen@engr.wisc.edu
"Paleoclassical model for edge electron temperature pedestal," J.D. Callen, T.H. Osborne, R.J. Groebner, H.E. St. John, A.Y. Pankin, G. Bateman, A.H. Kritz, W.M. Stacey, UW-CPTC 06-6, March 2007 (currently being revised, updated for resubmission) (562 kB .pdf, 4 page file).
"Derivation of paleoclassical key hypothesis," Phys. Plasmas 14, 040701 (2007) (116 kB .pdf, 4 page file): -- in April 2007 issue (http://pop.aip.org ). (UW-CPTC 06-8R, 25 January 2007.) Deductive derivation of the key hypothesis of the paleoclassical transport model that electron guiding centers diffuse radially with thin annuli of poloidal magnetic flux at the magnetic field diffusion rate in resistive, current-carrying toroidal plasmas. This is done by transforming the drift-kinetic equation from laboratory to (locally diffusing) poloidal flux coordinates and analyzing the mathematical characteristic curves (effective particle guiding center trajectories) which oscillate about and relative to poloidal flux surfaces on the bounce time scale but diffuse radially on the slower magnetic field diffusion time scale.
Viewgraphs of 2007 Annapolis Sherwood Theory meeting poster 1C45 "Derivation of Paleoclassical Key Hypothesis" on this derivation, including a simplified form of it on viewgraphs 4 to 6. (280 kB .pdf, 18 viewgraph file).
Paper EX/P3-2 at 21st IAEA Fusion Energy Conference, Chengdu, China, October 16-21, 2006 (4.5 MB .pdf, 8 page file): "Experimental Tests Of Paleoclassical Transport," J.D. Callen, J.K. Anderson, T.C. Arlen, G. Bateman, R.V. Budny, T. Fujita, C.M. Greenfield, M. Greenwald, R.J. Groebner, D.N. Hill, G.M.D. Hogeweij, S.M. Kaye, A.H. Kritz, E.A. Lazarus, A.C. Leonard, M.A. Mahdavi, H.S. McLean, T.H. Osborne, A.Y. Pankin, C.C. Petty, J.S. Sarff, H.E. St. John, W.M. Stacey, D. Stutman, E.J. Synakowski, and K. Tritz, UW-CPTC 06-5, October 2006 (a slightly extended version is to be published in Nuclear Fusion).
Poster for preceding IAEA paper EX/P3-2 (5.44 MB .pdf, 18 viewgraph file).
Papers developing the basics of the paleoclassical model for radial electron heat transport in axisymmetric current-carrying, resistive toroidal plasmas have been published: basic concepts in a sheared slab model (Physical Review Letters), comprehensive axisymmetric toroidal magnetic field model (Physics of Plasmas), and brief summary of the model plus "back of the envelope" interpretations of various experimental results with it (Nuclear Fusion). Section 6 of the Nuclear Fusion paper proposes a total of 19 different experimental tests (in 5 categories) of the paleoclassical model of radial electron heat transport, about half of which are explored in the 2006 IAEA Chengdu paper EX/P3-2 above. A "first principles" proof of the "key hypothesis of the paleoclassical model" that electron guiding centers diffuse with the poloidal flux (field lines) has recently been developed (see 2007 Phys. Plasmas article above).
"Most Electron Heat Transport Is Not Anomalous; It Is a Paleoclassical Process in Toroidal Plasmas," Phys. Rev. Lett. 94, 055002 (2005) (100 kB .pdf, 4 page file) -- in February 11, 2005 issue (http://prl.aps.org ).
"Paleoclassical transport in low collisionality toroidal plasmas," Phys. Plasmas 12, 092512 (2005) (296 kB .pdf, 20 page file) -- in September 2005 issue (http://pop.aip.org ).
"Paleoclassical Electron Heat Transport" (577 kB .pdf, 9 page file) -- UW-CPTC 04-8, Paper TH/1-1 presented orally at 2004 IAEA Fusion Energy Conference, Vilamoura, Portugal, November 1-6.
"Paleoclassical electron heat transport," Nuclear Fusion 45, 1120 (2005) (243 kB .pdf, 11 page file) -- in August 2005 issue of Nuclear Fusion (http://www.iop.org/ej/nf ); expanded version of Paper TH/1-1 at 2004 IAEA Fusion Energy Conference.
The original UW-CPTC preprints are accessible via http://www.cptc.wisc.edu.
Preparation Of Effective Scientific Talks (319 kB .pdf file)
NEEP/ECE/Physics 525 -- Introduction to Plasmas.
(29 lectures videotaped in 1990; most in two videotapes A, B; requires Windows Media Player; .wmv files, about 50 MB each)
525 Videotapes
NEEP 903 -- Models of Plasma Confinement and Heating in Tokamaks.
(12 lectures videotaped in 1987; requires RealOne Player; .rm files, about 250 MB each)
The viewgraphs used in these lectures are available electronically (6.8 MB .pdf, 193 viewgraph file, September 1989) ,
or in printed form in UWPR 89-2 (September 1989) from wegner@engr.wisc.edu.
903 Videotapes
Intro Material (300 kB .pdf, 7 page file, 6/28/06): Cover Page, Preface, Introduction