Experiment on deflection of high-speed plastic pellets using curved guide tubes

High-speed plastic pellets for plasma diagnostics have been transported usi ng guide tubes curved at 90 degrees. The ratio of the output velocity to th e input one has depended on the roughness of the inner surface of the curve d tube, but not on the curvature of the tube. The pellets are transported t hrough the curved guide tube without being broken and without a significant reduction in speed. The output velocities required for plasma diagnostics have been obtained. The experimental results show that the pellets do not p ass through the curved tube by means of sliding, but via repeated reflectio ns.