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Results from long conduction time plasma opening switch experiments at Sandia National Laboratories

Conference ·
OSTI ID:10181886
;  [1];  [2]
  1. Sandia National Labs., Albuquerque, NM (United States)
  2. General Energy Technologies, Inc., Albuquerque, NM (United States)
+ Show Author Affiliations
Sandia National Laboratories is conducting research on Plasma Opening Switches (POS) with input current fluxing times of 200--250 nanoseconds. The opening switches that have been studied at Sandia employ auxiliary magnetic fields to control the switch plasma. Results will be presented from the latest series of experiments on the MITE pulser. Mite will presently deliver 650 kA in 250 ns to a short at the opening switch position. the MITE experiment is unique because it uses a 15 ns long (one-way) transmission line for the storage inductor. This is important for efficiency when the POS is used to transfer energy into an inductive load. The distributed storage inductor also allows pulse-shaping into resistive loads. We will discuss the plasma injection methods used and the effects of the magnetic fields. We will show results from operation of the switch into electron beam loads at voltages from 2 to 3 megavolts. The load voltage risetime 15 to 30 nanoseconds. Important to vacuum opening switch work is the electron flow downstream of the POS. We will show anode and cathode current measurements downstream of the switch and discuss how switch operation affects electron flow.
Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
10181886
Report Number(s):
SAND--93-0153C; CONF-930616--32; ON: DE93019063
Country of Publication:
United States
Language:
English

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Related Subjects

42 ENGINEERING
426000
43 PARTICLE ACCELERATORS
430303
COMPONENTS
ELECTRON DEVICES AND CIRCUITS
EXPERIMENTAL FACILITIES AND EQUIPMENT
HIGH-VOLTAGE PULSE GENERATORS
PLASMA SWITCHES
PULSE TECHNIQUES
TESTING
TIMING PROPERTIES
TRIGGER CIRCUITS