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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 .
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)
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.
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 ...
Laser fusion was suggested in 1962 by scientists at LLNL. Initially, lasers had little power. Laser fusion (inertial confinement fusion) research began as early as 1965. At the 1964 World's Fair, the public was given its first fusion demonstration. [32] The device was a Theta-pinch from General Electric.
Producing an energy yield of 0.72, of laser beam input to fusion output. [78] [79] [Record] On December 5, the National Ignition Facility recorded the first experiment to surpass scientific breakeven, achieving an energy gain factor of Q = 1.54, producing more fusion energy than the laser beam delivered to the target. Laser efficiency was in ...
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.
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.