COBALT-60 DEPTH-DOSE CORRECTIONS AS DETERMINED BY TRANSMISSION-DOSE MEASUREMENTS

Journal Article · Mon May 01 00:00:00 EDT 1961 · Radiology (U.S.)

DOI:https://doi.org/10.1148/76.5.805· OSTI ID:4088601

Schulz, R J; Cohen, G A; Tsai, J P; Evans, J C

A method for correcting the central-axis depth dose for tissue density variations is described. The only equipment needed is a Victoreen condenser r- meter and an inexpensive collimator of simple construction. The technic, which is based upon patient transmission, involves a transit dosimeter reading of radiation transmitted by the patient during the course of a routine treatment, a transit dosimeter reading made under identical conditions but with the patient removed, and the patient' s anteroposterior diameter. With the aid of data preserted above, which should be applicable to all cobalt teletherapy apparatus, the appropriate correction factors are readily obtained. (auth)

• Research Organization: Yeshiva Univ., New York; and Bronx Municipal Hospital Center, New York
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-021004
• OSTI ID: 4088601
• Journal Information: Radiology (U.S.), Journal Name: Radiology (U.S.) Vol. Vol: 76; ISSN RADLA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BODY
COBALT 60
CONFIGURATION
DENSITY
DOSEMETERS
ERRORS
HEALTH AND SAFETY
LABORATORY EQUIPMENT
LENSES
MAN
MEASURED VALUES
PERFORMANCE
QUANTITATIVE ANALYSIS
RADIATION DOSES
RADIOTHERAPY
RATE METERS
TISSUES
VARIATIONS