To Prof. John Holdren: I am a graduate student of U.C. Berkeley doing thesis research
on magnetic fusion energy (MFE) at the DIII D tokamak in San Diego, CA.
The books describe where research
on magnetic fusion energy comes from and where it is going, and provide a basic understanding of the physics of plasma, the fourth state of matter that makes up 99 percent of the visible universe.
Not exact matches
After that I wanted to do something very practical so I switched to work
on magnetic confinement
fusion, as part of the ongoing effort to develop
fusion reactors.
On Earth, researchers create
fusion in facilities like tokamaks, which control the hot plasma with
magnetic fields.
After decades of slow progress with doughnut - shaped reactors,
magnetic fusion labs are gambling
on a redesign.
It is an experimental
fusion machine based
on the «tokamak» concept — a toroidal (doughnut - shaped)
magnetic configuration that is used to create and maintain the conditions for controlled
fusion reactions.
On the other hand, in
magnetic field confinement
fusion plasma intended for a
fusion reactor, which research is being conducted at the National Institute for
Fusion Science, development of high precision electron density measurements is becoming an important research topic.
That much current passing down the walls of the cylinder creates a
magnetic field that exerts an inward force
on the liner's walls, instantly crushing it — and compressing and heating the
fusion fuel.
Most
fusion research focuses
on magnetic confinement, using powerful electromagnets to contain a thin plasma of hydrogen isotopes and heat it until the nuclei fuse.
Aiming for the achievement of
fusion energy, research
on confining a high temperature, high density plasma in a
magnetic field is being conducted around the world.
Each of these spinning
magnetic storms is the size of Europe, and together they may be pumping enough energy into the solar atmosphere to heat it to millions of degrees — a power that leads one scientist to suggest we could mimic these solar tornadoes
on Earth in the quest for nuclear
fusion power.
Heliophysics plays out
on scales ranging from the
fusion of subatomic particles taking place in the heart of the sun to the grand sweep of
magnetic storms that can engulf entire planets.
The Princeton Plasma Physics Laboratory, funded by the U.S. Department of Energy and managed by Princeton University, is located at 100 Stellarator Road off Campus Drive
on Princeton University's Forrestal Campus in Plainsboro, N.J. PPPL researchers collaborate with researchers around the globe in the field of plasma science, the study of ultra-hot, charged gases, to develop practical solutions for the creation of
magnetic fusion energy as an energy source for the world.
This approach to
fusion differs from experiments
on the NSTX - U, which confines low - density plasma in
magnetic fields to produce
fusion reactions.
Researchers at the five - day conference, which ends Nov. 20, will attend nine half - day sessions featuring nearly 1,000 talks
on subjects ranging from space and astrophysical plasmas to the challenges of producing
magnetic fusion energy.
Papers, posters and presentations ranged from
fusion plasma discoveries applicable to ITER, to research
on 3D
magnetic fields and antimatter.
«
On the one hand, the U.S. is a major participant in ITER, the international tokamak project located in France that's studying
magnetic fusion.»
Possible applications range from the dissipation of
magnetic energy in
fusion devices
on Earth to the acceleration of high energy particles in solar explosions called solar flares (Animation 1 and Image 2).
Unlike inertial systems,
magnetic systems have reached the temperature necessary for
fusion, but only through external heating devices that themselves use so much energy that you get no net energy out while they are
on.
While most characteristics of a system tend to vary in proportion to changes in dimensions, the effect of changes in the
magnetic field
on fusion reactions is much more extreme: The achievable
fusion power increases according to the fourth power of the increase in the
magnetic field.
Importantly, this non-event should not bear any relation to the fate of other vital work centering
on an entirely different approach known as
magnetic fusion.
Further, the fact that conquering this complex problem in laser
fusion has not been «
on schedule» has nothing to say about progress in
magnetic fusion — it has been and continues to be remarkable.