Report on The Fogging of Photographic Materials by Radiographic Radium

Abstract

A variety of commercial photographic and x-ray films were exposed under conditions simulating actual shipping conditions at several distances from a standard 250 milligram radium capsule enclosed in its lead carrying case. The exposure required in each case to produce a density gain of 0.07 were determined and a table was constructed giving the permissible transit times for each kind of film when 15 feet from the radium unit. These value are at the least several times those permitted for the same conditions by present railway express regulations.

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Document Details

Document Type
Technical Report
Publication Date
Jul 25, 1939
Accession Number
AD1158453

Entities

People

  • Herman F. Kaiser

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Advanced Materials
  • Buildings And Structures
  • Cassettes
  • Containers
  • Coverings
  • Diameters
  • Engineered Materials
  • Materials
  • Photographic Materials
  • Plotting
  • Radiography
  • Regulations
  • Research Facilities
  • Shipping
  • Standards
  • Thickness
  • X Ray Film
  • X Rays

Readers

  • Combustion and Flow Dynamics.
  • Maritime Security/Maritime Homeland Security
  • Nuclear and Radiation Engineering.