Date of Award

Spring 1981

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Physics

First Advisor

Matthys, Donald

Second Advisor

Karioris, Frank. G.

Third Advisor

Burrage, Lawerence, M.

Abstract

A vacuum arc with hollow cylindrical anode can generate an arc voltage in excess of 10,000 volts with currents in excess of 1000 amperes. A model has been developed that describes this high arc voltage as being caused by the conduction of the current through an electron space-charge region near the anode. The detection of x-rays emitted from the anode at the time of the high arc voltage has confirmed the model of this vacuum arc. An x-ray pinhole camera gave spatial resolution and showed that the x-rays were emitted from the anode. A PIN diode x-ray detector gave temporal resolution and showed that the x-rays were emitted during the high arc voltage mode. A lithium fluoride crystal spectrometer gave energy resolution and showed that the emitted x-rays were characteristic of the copper anode . This experiment confirmed that the major energy dissipation mechanism for this arc during the high voltage mode was the bombardment of the anode by electrons.

Share

COinS

Restricted Access Item

Having trouble?