PICOSECOND RISETIME SWITCH STUDY.

Abstract

This effort is part of a program aimed at utilizing nanosecond pulses to provide superior range resolution in long range radar. The generation of nanosecond pulses requires switches with picosecond risetime and jitter capabilities. The objective of this program was to develop the necessary switching techniques in the picosecond time domain. Apparatus and a measurement technique have been developed and applied to high voltage spark gap switching times in the 10 to the minus 11th power sec time domain. The investigation has included study of electrode material and surface condition leading to ultra-fast closure times in highly over-volted gaps brought about by enhanced high field electron emission. Closure times of 50 psec or less have been achieved. Ultraviolet triggering of overvolted gaps has been observed with jitter as low as 25 psec.

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0820141

Entities

People

  • H. J. Huber
  • J. M. Proud

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Electrodes
  • Electron Emission
  • Electrons
  • Emission
  • High Voltage
  • Materials
  • Nanosecond Time
  • Photoexcitation
  • Picosecond Time
  • Spark Gaps
  • Surface Properties
  • Switches
  • Switching
  • Time Domain

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Image Processing and Computer Vision.

Technology Areas

  • Microelectronics