RADIOISOTOPE POWERS SELF-LUMINOUS SIGN

THE ARIZONA HIGHWAY DEPARTMENT HAS INSTALLED A SELF-LUMINOUS OVERHEAD TRAFFIC SIGN AT A PHOENIX INTERSECTION. THIS IS THE FIRST FUNCTIONAL OVERHEAD TRAFFIC CONTROL SIGN POWERED BY THE RADIOISOTOPE KRYPTON 85 IN THE UNITED STATES. THE SIGN REQUIRES NO ELECTRICAL POWER AND IS DESIGNED WITH A NUMBER OF INDIVIDUALLY EXCITED, MODULAR LIGHT SOURCES (I-LITES) WHICH FORM THE LEGEND. THE MODULAR CONCEPT ALLOWS FULL FLEXIBILITY FROM A DESIGN STANDPOINT. THE SEALED SELF-LUMINOUS MODULES CONTAIN A LIGHT-GENERATING PHOSPHOR IN COMBINATION WITH THE RADIOISOTOPE KRYPTON 85, A NUCLEAR REACTOR BYPRODUCT GAS. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1606878
• Supplemental Notes:
  • Vol 100, No 12, PP 78-79
• Authors:
  • SNYDER, J
• Publication Date: 1969-12

Media Info

• Serial:
  • Public Works
  • Publisher: Hanley Wood
  • ISSN: 0033-3840
  • Serial URL: http://www.pwmag.com

Subject/Index Terms

• TRT Terms: Luminous materials; Noble gases; Overhead traffic signs; Radioisotopes; Traffic signs
• Old TRIS Terms: Krypton; Luminous sign; Phosphors
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225627
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 13 1970 12:00AM