A velocimeter system for hydrogen pellet injection

In the one of the effective way of plasma diagnosis nowadys and the nuclear fusion fuelling in the future, the parameter of velocity of hydrogen pellets asked in physics is within 2%. A radiation light source of double seam and multichennel fibres in file style were used. This velocimeter system which has been developed could identify φ0.5mm objective at least and the precision of measurement result could be controlled within 1.6%.