FEASIBILITY OF TUNNEL DETECTION BY TRACE GAS ANALYSIS

Abstract

The feasibility of tunnel detection by trace gas analysis was investigated at the USA CRREL permafrost tunnel near Fox, Alaska. Under favorable conditions, the presence of an odor unique to the tunnel could be sensed at least 200 yards downwind from the air vent. Under extremely unfavorable conditions, trace gases identified in the tunnel were present 40 years downwind from the air vent in concentrations 10 to 100 times greater than were observed upwind. These results supported the principle of detection by trace gas analysis.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1970
Accession Number
AD0708861

Entities

People

  • D. C. Leggett
  • R. P. Murrmann
  • T. F. Jenkins

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Counter IED
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Flow
  • Alcohols
  • Alkenes
  • Chemical Analysis
  • Cold Regions
  • Detection
  • Detectors
  • Earth Sciences
  • Engineering
  • Explosives Detection
  • Gas Chromatography
  • Geographic Regions
  • Geography
  • Measurement
  • Puerto Rico
  • Refrigeration Systems
  • Trace Gases

Fields of Study

  • Environmental science

Readers

  • Analytical Chemistry
  • Fluid Dynamics.
  • Systems Analysis and Design