Dye film dosimetry for radiation processing

Conference · Wed Apr 01 04:00:00 EST 1981 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5646339

Humphreys, J C; McLaughlin, W L

Commercially available plastic films containing dyes or dye precursors are convenient dosimeters and imaging media for electron beams or photons used for industrial radiation processing. As ''grainless'' imaging systems having thicknesses down to a few micrometers, they provide high spatial resolution for determining detailed absorbed dose distributions through microdensitometric analysis. The radiation absorption properties of these systems are adjusted by changing film composition so that the dosimeter materials can be made to simulate the material of interest undergoing irradiation. Other advantages include long-term stability, dose-rate independence, and ease of use and calibration. Radiochromic dye films with thicknesses varying from 0.005 to 1 mm are presently used to monitor electron-beam or gamma-ray doses from 10 to 10/sup 5/ Gy (10/sup 3/ to 10/sup 7/ rad), typical of those encountered in medical applications, radiation curing of polymeric composites, wire and cable insulation, shrinkable plastic tubing and film, as well as sterilization of medical supplies and treatment of municipal and industrial wastes. An NBS calibration service to industry involves the traceability of standard /sup 60/Co gamma ray absorbed dose measurements by means of these films employed as transfer standards.

• Research Organization: National Bureau of Standards, Washington, DC 20234
• OSTI ID: 5646339
• Report Number(s): CONF-801111-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-28:2
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
070204* -- Radiation Sources-- Industrial Uses
Radiometric
CALIBRATION
CALORIMETRY
COLORIMETRIC DOSEMETERS
DOSEMETERS
DOSIMETRY
DYES
FILM DOSIMETRY
INDUSTRIAL RADIOGRAPHY
IRRADIATION
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
PHOTOGRAPHIC FILM DOSEMETERS
STANDARDS
US DOC
US NBS
US ORGANIZATIONS