Optical sensors for accelerator diagnostics. Final report for the period September 15, 1998 - September 14, 2001

DARHT utilizes a long pulse electron beam having a duration in excess of 2 microseconds. An electro-optic voltage sensor technology has been developed and commissioned to address this unique diagnostic environment. Over 200 sensors have demonstrated 0.25% accuracy. Deployment is expected in 2002

Integrated-optic voltage transducer for high-voltage applications.

This paper describes a novel voltage transducer. Its design is based on a mathematical procedure that enables a small numberof strategically positioned electric field sensors to accurately measure the voltage. The voltage transducer takes advantage ofexisting compact, non-intrusive optical electric field sensor technology, specifically, the integrated-optic Pockels cell (IOPC),but is not limited to optical technology. The key advantage of this voltage transducer over other existing optics-based voltagetransducer technologies is that it does not require any customized electrode structures and/or special insulation. A highvoltageintegrated-optic voltage transducer has been used to obtain measurements with metering class accuracies. Copyright 2000 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Applied Science, Faculty ofElectrical and Computer Engineering, Department ofReviewedFacult