Accession Number:

ADA028289

Title:

Optical Bases for Remote Biological Aerosol Detection.

Descriptive Note:

Quarterly progress rept. no. 1, Dec 75-Mar 76,

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

Report Date:

1976-03-23

Pagination or Media Count:

10.0

Abstract:

Measurements and calculations to determine whether lidar techniques based on fluorescence can remotely detect and identify biological aerosols were made. B. subtilis, in isotonic saline, was tested by absorption measurements. Extinction scattering plus absorption was measured. At the absorption peak near 265 nm, optical densities for scatter and absorption were each nearly 0.5 for 10 to the 8th power organismsml. Extinction as a function of wavelength, using Baird Atomic SF-1 light source will be investigated. Relatively dilute samples for B. subtilis 0.000005 organismml should be used. Plans for calibration of the Baird-Atomic Fluorispec SF-1 have been modified. The laboratory van is nearly serviceable.

Subject Categories:

  • Physical Chemistry
  • Chemical, Biological and Radiological Warfare
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE