Accession Number:

ADA114046

Title:

Nanosecond Pulser Thyratrons.

Descriptive Note:

Interim rept. no. 2, 15 Jan-30 Jul 81,

Corporate Author:

EG AND G INC SALEM MA ELECTRONIC COMPONENTS DIV

Personal Author(s):

• Friedman,Steven

Report Date:

1982-01-01

Pagination or Media Count:

44.0

Abstract:

The fundamental feasibility of using thyratrons for 1 ns turn-on of certain millimeter wave devices has been demonstrated, in that a voltage rise rate of 6kvns has been achieved across a pure approximately 60 pF load. Use of ferrite bead saturable reactors enabled this to be accomplished at a thyratron pressure compatible with both reliable voltage holdoff and sufficiently short recovery time for a 20 kHz prr. The thyratron used was a 3-inch diameter HY-3013 modified for low inductance and designated HY-3013L. In particular this result shows that HY-3013L will meet the recently reduced EIO triggering requirements or approx. 3 kv, even though the ratio of load voltage to thyratron voltage will decrease to only 0.5-1.0 when the pulse width is reduced to 4 ns FWHM. the exact value of this ratio will depend on the type of circuit employed. Operation at higher voltages will require a several-fold decrease in thyratron recovery time. Substantial reduction in thyratron jitter is also needed, and a reduction in the power required to trigger the thyratron would be desirable. Thyratrons based on the HY-3013L, but modified to achieve these goals, are being designed. Author

Descriptors:

• *THYRATRONS
• *FEASIBILITY STUDIES
• *MILLIMETER WAVES
• NUCLEAR REACTORS
• VOLTAGE
• FERRITES
• BEADS
• PRESSURE
• SATURATION
• CAPACITORS
• LOW LEVEL
• INDUCTION SYSTEMS
• LOADING(ELECTRONICS)

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE