Accession Number : ADA115580

Title :   Internal Triggering Marx Generator Using Hydrogen Thyratrons.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Kimberlin,Craig Lee ; Lundberg,Randy Lee

PDF Url : ADA115580

Report Date : Dec 1981

Pagination or Media Count : 70

Abstract : Operation of a Marx generator using hydrogen thyratrons as switches, with the switches in the upper stages of the Marx being triggered by a signal derived from the lower stages (internal triggering) was investigated. The Marx was in a negative output configuration and utilized pulse forming networks (PFN's) as the energy storage elements. Triode, 8613, thyratrons were used along with 175 nanosecond risetime, five section, E-star (E*) configured PFN's. Timing requirements and erection diagnostics were determined using a two-stage Marx, with both stages triggered from separate external sources (manual triggering). It was found improper timing led to large voltage spikes on the last stage anode and a poor output pulse shape. An attempt to trigger the second (N+1) stage from a signal in the first (Nth) stage was unsuccessful because of long tube turn-on times. A three-stage Marx was examined, with all stages triggered manually, to confirm timing requirements. Triggering the third (N+2) stage from a signal in the first (Nth) stage, with stages one and two externally triggered, was successful. Triggering the N+2 stage from the Nth stage using a four-stage Marx (four from two and three from one) was very successful.

Descriptors :   *Thyratrons, *Pulse generators, *Trigger circuits, Hydrogen, Internal, Voltage, Spikes, Theses

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE