title: Modified transit dosementer system for 60Co rotational therapy.
abstract: The transit dosemeter has been used in obtaining inhomogeneity corrections for 60Co rotational therapy. A modified approach is presented which features a rapid electronic system for determining the average tissue-air ratio (TAR) for a 360 degree rotation. Experimental results and early clinical experience show that this system is capable of providing a TAR value directly, and more rapidly. It can be readily incorporated in a therapy system which already includes a transit dosemeter.
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D011867:Radioisotope Teletherapy / Q000295:instrumentation*; D011879:Radiotherapy Dosage
chemical_list: D003037:Cobalt Radioisotopes