Title :
A high speed double snubber crowbar
Author :
Grotz, G. ; Kugel, H. ; Kaita, R. ; Kozub, T. ; Gammel, G.
Author_Institution :
Plasma Phys. Lab., Princeton Univ., NJ, USA
Abstract :
A high-speed, 80-kV, self-triggering crowbar has been constructed to protect the Princeton Beta Experiment-Modified (PBX-M) diagnostic neutral probe beam (NPB) ion source from arc damage and assist in rapid high-voltage conditioning. The crowbar, operating in conjunction with two magnetic-core snubbers, quickly limits and diverts ion-source arc current. The charge flowing in the ion-source arc is reduced an order of magnitude below the level expected with only snubber protection. The crowbar firing time is less than 100 ns at an 80-kV operating level
Keywords :
fusion reactor instrumentation; ion sources; particle beam diagnostics; Princeton Beta Experiment-Modified; arc damage; crowbar firing time; diagnostic neutral probe beam; high speed double snubber crowbar; ion source; magnetic-core snubbers; rapid high-voltage conditioning; self-triggering crowbar; Capacitance; Circuit faults; Fault currents; Ion sources; Laboratories; Magnetic cores; Protection; Resistors; Snubbers; Switches;
Conference_Titel :
Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on
Conference_Location :
Knoxville, TN
DOI :
10.1109/FUSION.1989.102313
