We present a device for controlled injection of a variety of materials in powder form. The
system implements four independent feeder units, arranged to share a single vertical drop …

High-speed injection of solid fuel was first proposed in 1954 as a possible solution to the
problem of transporting fresh fuel across the confining magnetic fields into the plasma of a …

Steady progress has been made worldwide in the application and development of hydrogen
pellet injection as a method for fuelling magnetically confined plasmas. The theoretical …

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 …

Cryogenic pellet injectors for use in fusion research have been under development at Oak
Ridge National Laboratory for over 30 years. The original application of the technology was …

High-Z materials such as tungsten are currently the potentially best candidates for plasma-
facing components (PFCs) in future fusion devices. However, the threat of melting under …

High-speed injection of pellets, composed of frozen hydrogen isotopes and multimillimeter
in size, is commonly used for core fueling of magnetically confined plasmas for controlled …

Shattered pellet injection (SPI) has been selected as the baseline technology for the
disruption mitigation (DM) system for ITER. Typical SPI utilizes cryogenic cooling to …

Pellet injectors are needed to fuel long pulse tokamak plasmas and other magnetic
confinement devices. For this purpose, an apparatus has been developed that forms 1.3 …

We have recently developed a soft-landing (SL) instrument that is capable of depositing ions
onto substrates for preparative and developmental research of new materials using a laser …