NCJ Number
59821
Journal
NUCLEAR MATERIALS MANAGEMENT Volume: 6 Issue: 3 Dated: (FALL 1977) Pages: 381-388
Date Published
1977
Length
8 pages
Annotation
THE IMPLEMENTATION OF AN EFFECTIVE PERIMETER INTRUSION DETECTION SYSTEM AT A PARTICULAR SITE REQUIRES CAREFUL SENSOR SELECTION, PROCUREMENT, AND INSTALLATION.
Abstract
PERIMETER INTRUSION SENSORS PROVIDE AN EARLY WARNING TO THE SECURITY FORCE OF AN UNAUTHORIZED ENTRY INTO A PROTECTED AREA. THE PERFORMANCE OF AVAILABLE SENSORS IS CRITICALLY INFLUENCED BY THE SITE ENVIRONMENT, PROCUREMENT SPECIFICATIONS, AND CARE IN INSTALLATION. THE SELECTION OF SENSOR TYPES MUST BE BASED ON A DETERMINATION OF THE ENVIRONMENT IN WHICH THE SENSORS MUST OPERATE, AND A KNOWLEDGE OF HOW THAT ENVIRONMENT WILL INFLUENCE SENSOR PERFORMANCE. NO SINGLE SENSOR CAN SUCCESSFULLY DETECT ALL INTRUDER PROFILES WITHOUT GENERATING EXCESSIVE NUISANCE ALARMS. A COMBINATION OF SENSORS, CHOSEN TO COMPLEMENT EACH OTHER, CAN RESULT IN PERFORMANCE WHICH KEEPS THIS NUISANCE ALARM RATE AT AN ACCEPTABLE LEVEL WITHOUT COMPROMISING THE PROBABILITY OF DETECTION. EVALUATION PROGRAMS HAVE INDICATED THAT BURIED CABLE DEVELOPED BY THE U.S. AIR FORCE HAS A STABLE OPERATING DESIGN, ALTHOUGH THE BURIED CABLE IS MORE SUSCEPTIBLE TO NUISANCE ALARMS FROM HIGH WIND THAN IS THE MICROWAVE DESIGN. THE ELECTRIC-FIELD FENCE AND FENCE DISTURBANCE SENSOR ARE RECOMMEDED AS SECONDARY SYSTEMS. DISCUSSION OF EXPERIMENTAL INSTALLATION NOTES THE DESIRABILITY OF FENCE EXTENSIONS THAT WILL PREVENT RABBITS FROM ENTERING THE SENSOR ZONE. SOIL CONDITIONS AND FENCE STIFFNESS MUST ALSO BE CONTROLLED FOR OPTIMUM SYSTEM PERFORMANCE. INFORMATION ON HARDWARE PROCUREMENT FOR THE SECURITY SYSTEMS AND ON INSTALLATION IS INCLUDED. FIGURES AND REFERENCES ARE PROVIDED. (TWK)