The specific absorbed dose constant: comparison of values published for 60Co photons

Radiat Prot Dosimetry. 2003;103(4):341-7. doi: 10.1093/oxfordjournals.rpd.a006151.

Abstract

For the specific absorbed dose constant for 60Co photons, three values quoted directly in the literature and two derived indirectly from published information are reported. The three publications giving the direct values mentioned no medium of absorption, whereas the other two specify tissue. A database of the specific absorbed dose constant is generated for each of 14 media namely air, water, bone and 11 types of soft tissue. These values are consistent with the three directly quoted values plus one of the indirectly obtained values. Air is found to be unlikely as the medium for the first three; and appropriate media for these are suggested. For the other two values, the generated database suggests that one is too small to be accurate; while the other is correct for tissue (as stated in the publication). An apparent error of 10(3) is identified in one of the values directly quoted.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Air
  • Bone and Bones
  • Cobalt Radioisotopes*
  • Humans
  • Monte Carlo Method
  • Photons
  • Quality Control
  • Radiation Dosage*
  • Radiometry / methods*
  • Reproducibility of Results
  • Tissue Distribution
  • Water

Substances

  • Cobalt Radioisotopes
  • Water