DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
Use of a Thermoluminescent Dosimetry System in Measuring Dose to Patients Undergoing Xeromammography.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
Pagination or Media Count:
The response of lithium fluoride TLD-100 thermoluminescent dosimeters TLDs was calibrated against known exposures to x-ray beams having most probable energies of 11.6, 19, 24.9, and 42 keV. Separate impressions were made of the right breast of a female volunteer positioned for two x-ray views used in xeromammography with a General Electric MMX-2 Mammography Unit. The impressions were used to cast Mix-D breast phantoms for an Alderson-RANDO man phantom. The TLDs were used to measure the exposure distributions on and within the breast phantoms that result from xeromammography. Exposure distributions were measured at x-ray generating potentials of 30 to 38 kVp for the craniocaudal view and 32 to 40 kVp for the mediolateral view. A technique of 300 mAs and 1.5 mm Aleq filtration was used for all exposures. Maximum skin doses, calculated from the measured exposure, ranged from 730 to 1620 mrads for the craniocaudal view and 1030 to 2150 mrads for the mediolateral view as the generating potential was increased.
APPROVED FOR PUBLIC RELEASE