Interstage closure times for the rimfire multistage gas switch
The Rimfire multistage switch is a low-jitter SF/sub 6/ insulated gas switch that has been developed for PBFA II. The first stage is laser-triggered, and the subsequent stages are self-fired by the over-voltage from the closure of the triggered stage. The runtime of the 5 MV PBFA II switch is approximately 30 ns, and the standard deviation timing jitter is 1 ns. A Thomson streak camera and cylindrical imaging optics have been used to observe stage closure times, and a gated, single-frame camera recorded snapshots of the discrete arcs during the closure. These observations have shown that approximately half the switch closure time comes from the trigger and first self-break gap. The switch jitter is also dominated by these first gaps. Computer simulations, based on T.H. Martin's empirical gas breakdown model, agree with the experimental measurements, and give insight to the dynamics of the switch closure process. 9 refs., 8 figs., 2 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6058360
- Report Number(s):
- SAND-88-3437C; CONF-890665-18; ON: DE89013815
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ultraviolet laser triggering of the 6 MV PBFA-II gas switch
Development of a resistive load for PBFA II rimfire gas switch simultaneity and laser triggering tests
Related Subjects
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCELERATORS
CAMERAS
COMPUTERIZED SIMULATION
DESIGN
ELECTRIC FIELDS
ELECTRICAL EQUIPMENT
EQUIPMENT
EXCIMER LASERS
FLUORIDES
FLUORINE COMPOUNDS
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
KRYPTON FLUORIDE LASERS
LASERS
MEASURING INSTRUMENTS
PARTICLE BEAM FUSION ACCELERATOR
PLASMA SWITCHES
RADIATION DETECTORS
SIMULATION
STREAK CAMERAS
SULFUR COMPOUNDS
SULFUR FLUORIDES
SWITCHES