Report · Printed book
A fast-acting hydrogen gas source for staged pneumatic high-speed acceleration of fusion plasma fuel pellets
This report describes a possible design of a fast, high-temperature, arc-driven hydrogen gas source module, to be used in a scheme for multi-stage high-speed pneumatic acceleration of fusion plasma fuel pellets. The potential of this scheme for operating with a moderate driving pressure at long acceleration path lengths is particular attractive for accelerating fragile hydrogen isotope ice pellets.
From experiments with an ethanol-based arc unit, design parameters for a propeller module were assessed, and with a barrel-mounted ethanol module staged pneumatic acceleration of a plastic dummy pellet was demonstrated. In experiments with a hydrogenbased, cryogenic arc unit in which 200 joules of electrical energy were dissipated with a power level approaching S MW within 30 (is, the velocity of a 23-mg plastic pellet was increased from 1.7 to 2.4 km/s.
Results in terms of barrel pressure transients and arc characteristics are described.
Language: | English |
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Publisher: | Risø National Laboratory |
Year: | 1990 |
Volume: | 2857 |
Pages: | 35 s. |
Series: | Risø-m |
ISBN: | 8755016235 and 9788755016231 |
ISSN: | 04186435 |
Types: | Report and Printed book |