Electromagnetic Pulse Signal Classification and Identification of Nearby Sferics in the High Altitude Nuclear Detection Studies (HANDS) Program. Volume 1
Abstract
Electromagnetic pulse signals from certain classes of nuclear events, in terms of burst and distance, have features which afford a means of recognition. Similar features are also observed in atmospherics, but these have a smaller normalized source function amplitude. An experiment was conducted to investigate the feasibility of measuring the distance to nearby sferics using azimuth and amplitude data observed at two sites separated by a few kilometers. Knowledge of the distance to the source and the observed amplitude would permit calculation of the normalized source function amplitude which might be used as a discriminant. Data were also collected on the frequency of simultaneous (within equipment and propagation delay) observation at both sites, of signals exceeding 10 V/m amplitude 10 V/m/microsec rate of rise which persisted for one microsecond or less. Transients from lightning would not be expected to meet these criteria over propagation distances of more than a few kilometers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1968
- Accession Number
- AD0390054
Entities
People
- Don R. Boyle
- R. T. Moore
Organizations
- National Institute of Standards and Technology