Repetitively pulsed electron beam diode lifetime and stability

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6143967

Buttram, M T

Repetitively pulsed vacuum beam diodes will be required for most projected inertially confined fusion systems. Yet data on the operation of diodes under repetitive pulsing is sparse. This paper discusses the operation of a 250 kV, 1.5 kA/cm/sup 2/ diode at repetition rates to 30 Hz for sustained runs. Short term stability is typically 3 percent (standard deviation). Longer term there is a drift toward higher impedance at the start of the pulse. Details on this drift and a comparison of this process for a rather blunt versus a sharp edged cathode are presented.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6143967
• Report Number(s): SAND-79-0551C; CONF-790622-10
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700203* -- Fusion Power Plant Technology-- Power Supplies
Energy Storage
CONFINEMENT
DIODE TUBES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
INERTIAL CONFINEMENT
LIFETIME
PLASMA CONFINEMENT
POWER SUPPLIES
STABILITY
THERMONUCLEAR REACTORS