Optical Bases for Remote Biological Aerosol Detection.
Abstract
Measurements and calculations are being made to determine whether lidar techniques based on fluorescence and scatter can remotely detect and identify biological aerosols. The spectrofluorimeter has been calibrated. A forward-scatter instrument has been assembled to monitor aerosol flow rate. The facilities for generating aerosols have been assembled, tested, and calibrated. Aerosol concentrations up to 80 mg/cu m have been generated from 1% solutions of ammonium fluorescein. The mass median diameters of the dried particles are in the range of 2 to 5 micrometer. Preliminary measurements of the excitation and fluorescence spectra of aerosols of ammonium fluorescein and tryptophan have been made. A 20-m cell for the measurement of extinction by aerosols has been purchased.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1976
- Accession Number
- ADA032472
Entities
People
- William B. Grant
Organizations
- SRI International