Accession Number : ADA310726

Title :   Advanced Monitoring of Groundwater Cleanup Technologies - Phase I.

Descriptive Note : Progress rept. no. 2, 11 May-12 Jun 96,

Corporate Author : ADVANCED FUEL RESEARCH INC EAST HARTFORD CT

Personal Author(s) : Markham, James R. ; Nelson, Chad M.

PDF Url : ADA310726

Report Date : 14 JUN 1996

Pagination or Media Count : 9

Abstract : To develop a multi-pass gas cell with maximum pathlength and minimum volume employing On-Line's patented non-spherical, aberration-correcting optics. Ray tracing analysis for the proposed small volume, long optical pathlength gas cell was completed. The analysis has resulted in a design which meets the 500 cc gas volume constraint for the cell, while preserving the optical image quality over a suitably long pathlength. The analysis has indicated that a 50 meter effective pathlength is possible within the small volume constraint. To design, purchase and implement the infrared transfer optics to couple the miniature gas cell to a contractor owned FT-IR spectrometer suitable for on-site use. The Phase I monitor will be demonstrated for measurement sensitivity and speed during TCE monitoring. To evaluate the degree to which the overall Phase I objective was met and to formulate a preliminary design for a Phase II prototype. p1,6,8

Descriptors :   *MONITORING, *GROUND WATER, *CLEANING, *GAS CELLS, MEASUREMENT, VOLUME, PROTOTYPES, OPTICAL IMAGES, SENSITIVITY, TRANSFER, RAY TRACING, MINIATURIZATION, FOURIER SPECTROMETERS, INFRARED SPECTROMETERS, TRICHLOROETHYLENE, INFRARED OPTICAL SYSTEMS.

Subject Categories : Water Pollution and Control
      Industrial Chemistry and Chemical Processing
      Inorganic Chemistry
      Organic Chemistry
      Physical Chemistry
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE