In tokamak fusion reactors, plasma disruptions may be the limiting factor in the lifetime of the
first wall and divertor components. The large heat fluxes generated by the rapid, local …

A repeating pneumatic pellet injector has been developed for plasma fueling applications.
The repetitive device extends pneumatic injector operation to steady state. The active …

The current conception of fueling large fusion devices is based on gas puffing and pellet
injection. A pellet injector produces, accelerates, and transports millimeter-size pellets …

A repetitive two‐stage light gas gun for high‐speed pellet injection has been developed at
Oak Ridge National Laboratory. In general, applications of the two‐stage light gas gun have …

An eight‐shot pneumatic pellet injection system has been developed for plasma fueling of
the tokamak fusion test reactor (TFTR). The active cryogenic mechanisms consist of a solid …

An experiment to demonstrate the feasibility of a repetitive pneumatic pellet injector at 1 Hz
in the velocity range of 2 to 3 km/s was carried out in a collaboration between Oak Ridge …

During the last 10 to 15 years, significant progress has been made worldwide in the area of
pellet injection technology. This specialized field of research originated as a possible …

This paper reports on the JET high velocity repetitive pellet injector development at
Grenoble. Pellet propulsion uses a two-stage gun capable of generating a 5000 bar peak …

We describe the design and operation of the solid hydrogen pellet injection system used in
plasma refueling experiments on the ISX tokamak. The gun‐type injector operates on the …

Plasma fueling via injection of solid hydrogenic pellets has expanded the operating range
for tokamaks and stellarators to higher densities than attainable with gas puffing. Pellet …