Robert Bussard the designer of the Bussard ramjet has an electrostatic fusion device that is 100,000 times better.
The key discovery for the improvement was :
no metal surface penetrated by B fields must occupy more than about 1E-4 to 1E-5 of the total surface available to the recirculating electrons. If this dead fraction is larger, there is NO hope of net power from any such machine. AND, it is essential that the device be recirculating, i.e. that the electrons can circulate out and back through the cusps all over the machine. It is consistent with the need for electrons to recirculate about 100,000 times before being lost to collisions with structure, to yield net power.
One of the biggest obstacle is the world-wide tokamak lobby, which perpetuates the fraud that Hirsch, Trivelpiece and Bussard foisted on the country in the 1970’s when they started the big tokamak ball rolling.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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