Accession Number : ADD003690

Title :   Multielectrode Apparatus and Techniques to Prepare Aligned Asbestos Fibers on a Thin Substrate.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Birks,Laverne S ; Fatemi,Mohammad

Report Date : 15 Jun 1976

Pagination or Media Count : 6

Abstract : A method of forming parallel aligned chrysotile asbestos fibers on a thin substrate for use in a system for identifying the chrysotile asbestos in air pollution samples. The system comprises a collimated x-ray beam which is incident on the parallel aligned asbestos fibers. Diffracted x-rays are detected by an adjustable proportional counter set at the diffraction line position for the (002) plane. Background intensity may be detected by a second adjustable counter set above the axis at the same angle 2 theta or the sample may be rotated 90 and the one detector used to detect diffracted and background x-rays. (Author)

Descriptors :   *Patents, *Asbestos, *Fibers, *Substrates, Detectors, Electrodes, Laboratory equipment, Alignment, Parallel orientation, X ray diffraction, Air pollution, Sampling

Subject Categories : Test Facilities, Equipment and Methods
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE