NOISE SIGNALS AND CARRIER MODULATION ARISING IN ELECTRICAL CABLES DURING NUCLEAR PULSE IRRADIATION
Abstract
The electrical noise signals generated in the individual conductors of coaxial and other cables by incident nuclear radiation pulses were studied as a function of the applied voltage and the exposure history. Training processes were found to reduce the response signals in repetitive exposures, while storage or memory effects can cause strong readout signals if the applied voltage is changed in successive shots. Oscillatory signals in the center conductor were found to be caused by differentiation of the unexpectedly large shield current pulses. The latter can also inject parasitic leakage currents into other conductors nearby. An RF signal transmitted through RG62 A/U cable suffers a temporary attenuation of almost 20%, while it passes through RG59 B/U cable unaffected. Methods for the dynamic meas urement of noise, resistance, attenuation and impedance are described, and definite rules are given for minimizing noise signals from cables used in nuclear pulse radiation measurements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1963
- Accession Number
- AD0406623
Entities
People
- Charles P. Lascaro
- Eberhard Both
- Horst P. Bruemmer
- Joseph Newbert
- William Schlosser
Organizations
- United States Army Communications-Electronics Command