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One of the beams may be replaced by a static target, in which case the approach is termed accelerator based fusion or beam-target fusion, but the physics is the same as colliding beams. [ 1 ] CBFRs face several problems that have limited their ability to be seriously considered as candidates for fusion power .
Colliding beam fusion: A beam of high energy particles fired at another beam or target can initiate fusion. This was used in the 1970s and 1980s to study the cross sections of fusion reactions. [8] However beam systems cannot be used for power because keeping a beam coherent takes more energy than comes from fusion.
Penning fusion (PFX, LANL) Plasma jets (HyperV, Chantilly) Magnetized target fusion with mechanical compression (General Fusion, Burnaby) Field-reversed colliding beams (Tri-Alpha) Muon-catalyzed fusion (Berkeley, Alvarez) Dense Plasma Focus (Focus fusion, Lawrenceville Plasma Physics, Lerner) Rotating lithium wall (RWE, Maryland)
The target facility, which holds the inventory of about 10 m 3 of Li, forms and conditions the beam target. The Li screen fulfills two main functions: to react with the deuterons to generate a stable neutron flux in the forward direction and to dissipate the beam power in a continuous manner.
A high-energy beam of deuterium ions generated by pyroelectric crystals was directed at a stationary, room-temperature ErD 2 or ErT 2 target, and fusion was observed. [ 2 ] In previous fusion research, such as inertial confinement fusion (ICF), fuel such as the rarer tritium is subjected to high pressure for a nano-second interval, triggering ...
This kind of fusion reactor would consist of two parts: Targets which can be small capsules (<7 millimeter diameter) that contain fusion fuel. Although many kinds of targets have been tested including: cylinders, shells coated with nanotubes, solid blocks, hohlraum, glass shells filled with fusion fuel, cryogenically frozen targets, plastic shells, foam shells and materials suspended on spider ...
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The 10 beam LLNL Nova laser, shortly after its completion in 1984.In the late 1970s and early 1980s the laser energy per pulse delivered to a target using inertial confinement fusion went from a few joules to tens of kilojoules, requiring very large scientific devices for experimentation.