The Spacetime Metric

Historical research guide · 1059 · 1991

Status and plans for inertial confinement fusion

Marshall Sluyter · Roger O. Bangerter · J. Pace VanDevender · S. Nakai · William Hogan · Guillermo Velarde

In one minute

In September 1991 the Journal of Fusion Energy printed a panel discussion in which six of the people running the world’s inertial confinement fusion effort said, on the record, where the field stood and where it was going next. Marshall Sluyter spoke from the U.S. Department of Energy, which paid for the American programme; Roger Bangerter from the heavy-ion accelerator work at Lawrence Berkeley; Pace VanDevender from the light-ion machines at Sandia; S. Nakai from the glass lasers of Osaka’s Institute of Laser Engineering; William Hogan from Livermore, where the case for inertial fusion as an electricity source was being assembled; and Guillermo Velarde from the Madrid programme. It ran directly before the matching magnetic-confinement panel in the same issue, and that pairing is the point: squeezing a fuel capsule with a driver was being argued as one of the two mainline roads to a power station, with hardware already running, rather than as an exotic alternative.

Connection

Chapter 12 treats fusion as the energy substrate the rest of the site is built on, and this panel is the moment the inertial route was put on the record as a power-plant programme with named machines and named people rather than a physics experiment. Chapter 9 takes the other half: every approach argued here works by driving matter into an extremely dense, short-lived plasma state, which is the same regime the site’s plasmoid material lives in.

From the source

  1. The inertial route is presented as a mainline fusion-energy programme with a status and a forward plan, not as a side option. The paper is titled and framed as status and plans, and it is printed as one half of a pair, immediately before the matching status-and-plans panel for magnetic confinement in the same issue of the same journal.Title and article type, Panel Discussion; Journal of Fusion Energy volume 10 issue 3, pages 221 to 234, printed before pages 235 to 252

  2. The programme being reported is plural in its drivers and international in its institutions. The six people on the panel are drawn from the funding agency, the U.S. Department of Energy; the heavy-ion beam line at Lawrence Berkeley Laboratory; the light-ion pulsed-power line at Sandia National Laboratories; the glass-laser line at the Institute of Laser Engineering, Osaka University; the inertial fusion energy work at Lawrence Livermore National Laboratory; and the programme at the Polytechnical University of Madrid. Several independent driver technologies were being carried forward at once.Authors and affiliations, as printed with the article

  3. The argument is an energy argument, and the supporting literature shows it. The panel’s references are reactor-engineering references rather than target-physics ones: Pfirsch and Schmitter in Fusion Technology on the technology of a fusion plant, Perlado and Sanz in the Journal of Nuclear Materials on the activation of materials, and an ITER technical note by Vieider and Shatalov on the components that face the plasma. Those are the questions you ask when you intend to build a power station.Reference list, items 1 to 3

  4. Direct drive was live in the discussion, in its most demanding form. The panel cites Hora and colleagues on pulsation-free direct drive, presented at Monterey in November 1989 — the approach that illuminates the capsule with the driver beams themselves rather than converting them first into x-rays inside a cavity, and that stands or falls on how smoothly the drive can be made.Reference list, item 5

  5. The United States half of the status rests on the programme’s own documentation. The panel cites Storm and colleagues at the U.S. Department of Energy as its source for the American position, in a volume that also carries the Fusion Policy Advisory Committee’s final report and Koonin’s formal review of the Department of Energy’s inertial confinement fusion programme.Reference list, item 4; same volume, pages 127 to 156 and 157 to 172

The way in

https://doi.org/10.1007/bf01885458

How to cite it

Marshall Sluyter, Roger O. Bangerter, J. Pace VanDevender, S. Nakai, William Hogan, Guillermo Velarde (1991) Status and plans for inertial confinement fusion doi:10.1007/bf01885458

Where it sits in the curriculum

Provenance: Retrieved 2026-09-08

Summary by: The Spacetime Metric editorial rail (AI draft from the source text, 2026-09-07)

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