TRAIL: a Tokamak Rail Gun Limiter for fusion reactors

Conference · Tue Jan 01 00:00:00 EST 1980

OSTI ID:6450805

Powell, J R; Yu, W S; Fillo, J A; Usher, J L

An attractive new limiter concept is investigated. The Tokamak Rail Gun Limiter (TRAIL) system impacts a stream of moderate velocity pellets (100 to 200 m/sec through the plasma edge region to absorb energy and define the plasma boundary. The pellets are recycled, after cooling, to the injector in an E-M mass accelerator. Heat fluxes of approx. 30,000 W/cm/sup 2/ can be readily accommodated by the pellets, with very low recirculating power requirements (approx. 0.1%) for the accelerator. The mass accelerator velocity requirements are well within the present state-of-the-art (several km/sec). Accelerators injecting pellets at approx. 1 km/sec can be used to control local plasma temperature and current profiles and to act as energy absorbers to shut down the plasma without damage to the first wall if a plasma disruption occurs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6450805
• Report Number(s): BNL-29314; CONF-801138-9
• Resource Relation: Conference: Electromagnetic guns and launchers conference, San Diego, CA, USA, 4 Nov 1980
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
RAILGUN ACCELERATORS
DESIGN
TOKAMAK DEVICES
LIMITERS
FUEL PELLETS
HEAT FLUX
VELOCITY
CLOSED PLASMA DEVICES
IMPACT FUSION DRIVERS
PELLETS
THERMONUCLEAR DEVICES
700209* - Fusion Power Plant Technology- Component Development & Materials Testing