Nationwide survey of /sup 60/Co teletheraphy dosimeters
Journal Article
·
· J. Res. Natl. Bur. Stand., A; (United States)
The National Bureau of Standards is performing a study of the ability of radiation-therapy departments to deliver prescribed absorbed doses of /sup 60/Co gamma radiation to a water phantom. Batches of thermoluminescence dosimeters are mailed to participating therapy departments for irradiation under prescribed conditions. Upon return of the dosimeters, the participants' computations are checked and the absorbed dose is evaluated from dosimeter response. The rugged dosimetry system was assembled mainly from commercial components adapted to the present requirements of relatively high flexibility of readout parameters and data-handling techniques, and of relatively high accuracy. The uncertainty in the dose interpretation inherent in the system is estimated to be about 4 percent. In order to illustrate the type of information that can be obtained from such a study, results of the first four mailings involving tests of 114 /sup 60/Co gamma-ray beams are discussed. They show about 75 percent of the dose interpretations to be within 5 percent of the prescribed absorbed dose, and about 20 percent to be within 5 to 10 percent of this dose. Four dose interpretations showed discrepancies larger than 20 percent. Differences in the computations larger than 1 percent were observed in over one-half of the cases.
- Research Organization:
- National Bureau of Standards, Washington, DC
- OSTI ID:
- 7112164
- Journal Information:
- J. Res. Natl. Bur. Stand., A; (United States), Journal Name: J. Res. Natl. Bur. Stand., A; (United States) Vol. 80:4; ISSN JNBAA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nationwide survey of cobalt-60 teletherapy dosimetry. Technical note
Nationwide survey of cobalt-60 teletherapy. Final report
THERMOLUMINESCENT DOSIMETERS ON RECOVERABLE SATELLITES
Technical Report
·
Tue Aug 01 00:00:00 EDT 1978
·
OSTI ID:5652543
Nationwide survey of cobalt-60 teletherapy. Final report
Technical Report
·
Fri Aug 01 00:00:00 EDT 1980
·
OSTI ID:6942939
THERMOLUMINESCENT DOSIMETERS ON RECOVERABLE SATELLITES
Technical Report
·
Thu Feb 28 23:00:00 EST 1963
·
OSTI ID:4688884