Comparison of skin doses to large fields using tangential beams from cobalt-60 gamma rays and 4-MV x rays

Journal Article · Thu Jun 01 04:00:00 EDT 1978 · Radiology; (United States)

DOI:https://doi.org/10.1148/127.3.785· OSTI ID:6840965

Gagnon, W F; Peterson, M D

Excess radiation to the skin during external beam megavoltage radiation therapy has reportedly caused excessive erythema in patients treated with the Clinac 4 linear accelerator on sloping surfaces, but not for similar treatments with cobalt-60. Doses at the epidermal level were measured under geometries simulating sloping surfaces for a Clinac 4 and an Eldorado 8 cobalt-60 teletherapy machine. For equal doses to the axilla, doses to the epidermal layer were similar. When the tumor dose was calculated for the mediastinum, the dose to the skin in the axillary region was 12% higher for the Clinac 4.

• Research Organization: Univ. of Texas, Houston
• OSTI ID: 6840965
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 127:3; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

560151 -- Radiation Effects on Animals-- Man
61 RADIATION PROTECTION AND DOSIMETRY
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
655003* -- Medical Physics-- Dosimetry
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY
COBALT 60
COBALT ISOTOPES
COMPARATIVE EVALUATIONS
DOSES
DOSIMETRY
ELECTROMAGNETIC RADIATION
ERYTHEMA
GAMMA RADIATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
IRRADIATION PROCEDURES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEDICINE
MINUTES LIVING RADIOISOTOPES
MOCKUP
NUCLEAR MEDICINE
NUCLEI
ODD-ODD NUCLEI
ORGANS
PATIENTS
PHANTOMS
RADIATION DOSES
RADIATION EFFECTS
RADIATIONS
RADIOINDUCTION
RADIOISOTOPES
RADIOLOGY
RADIOTHERAPY
SIDE EFFECTS
SKIN
STRUCTURAL MODELS
SYMPTOMS
THERAPY
TISSUE-EQUIVALENT MATERIALS
X RADIATION
YEARS LIVING RADIOISOTOPES