Feasibility Study for Remote Debris Sensor
Abstract
An analytical study was performed to determine if a millimeter wavelength radar system has the capability to remotely sense the dust distribution following a nuclear surface bust. In particular, could the density of particles greater than a given size be determined? Also, the typical laser wavelength of 1.06 microns was considered as a candidate. The study considered three problems: (1) the characteristics of the dust distribution function as cloud density changed in time; (2) the extinction coefficient as a function of wavelength and time/density for the dust cloud; and (3) the backscatter cross section as a function of wavelength and time/density. This information allowed one to determine if the millimeter wave system can sample a reasonable volume of the dust cloud, and how sensitive this technique is to variations in the distribution of dust sizes with time. These calculations showed that: electromagnetic radiation of millimeter wavelength can propagate through this nuclear debris cloud; there is enough backscatter for detection; and the location, particle size, and density can be determined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1984
- Accession Number
- ADA138387
Entities
People
- A. J. Alexander
- D. Mott
- David F. Brown
Organizations
- Air Force Research Laboratory