WB-7 does not appear to have any relevance to a net-power-producing piece of kit, whereas JET and ITER do. I'm not sure of the purpose of raising such a comparison.rnebel wrote:If you are interested in pumps, the specifications for ITER can be found at:
http://www.iter.org/a/index_nav_4.htm
. If I am reading this correctly, the pumping power is about 60,000 liters/second. This is ~ 30 times more than the WB-7. It doesn't take a lot of power. Our system takes ~ 500 watts of power. ITER probably requires 10-20 kW.
I don't have much interest in vacuum pumps, only that the demand on such pumps between, on the one hand, IEC devices (which rely on avoiding thermalisation) and on the other hand thermal magnetically confined plasmas (that positively rely on thermalisation to be the process of high energy collisions) results in these extremes of practicability.
Would you agree that a polywell needs 1E-9 torr operating pressure, and a >MW version would need >billion litre/s pumps? Or what else, if otherwise?