Cranial dose distribution

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · Int. J. Radiat. Oncol., Biol. Phys.; (United States)

DOI:https://doi.org/10.1016/0360-3016(79)90581-9· OSTI ID:5583522

Gillin, M T; Kline, R W; Kun, L E

The dose distribution in the cranium, with special emphasis in the region subjacent to the skull, has been studied as a function of beam quality and the amount of extension of the radiation field beyond the scalp. Thermoluminescent dosimetry (TLD) measurements were made in a phantom, as well as ion chamber measurements in a water-filled plastic head phantom. Cobalt-60, 6 MV, and 25 MV photon beams were used. The results show the radiation distribution to be essentially independent of the amount of overlap. It does depend, however, on the shape of the skull and on beam quality. For the cobalt-60 and 6 MV beams, a 10% increase in dose in the frontal region of the cranium was noted. For the 25 MV beam, the radiation dose was diminished relative to the midline dose for a depth of several centimeters.

• Research Organization: Medical Coll. of Wisconsin, Milwaukee
• OSTI ID: 5583522
• Journal Information: Int. J. Radiat. Oncol., Biol. Phys.; (United States), Journal Name: Int. J. Radiat. Oncol., Biol. Phys.; (United States) Vol. 5:10; ISSN IOBPD
• Country of Publication: United States
• Language: English

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BIOLOGICAL RADIATION EFFECTS
BODY
BRAIN
CENTRAL NERVOUS SYSTEM
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COBALT ISOTOPES
COMPARATIVE EVALUATIONS
DATA
DATA FORMS
DEPTH DOSE DISTRIBUTIONS
DOSES
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ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
EXTERNAL IRRADIATION
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IRRADIATION
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ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEDICINE
MINUTES LIVING RADIOISOTOPES
MOCKUP
NERVOUS SYSTEM
NUCLEAR MEDICINE
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANS
PARTIAL BODY IRRADIATION
PATIENTS
PHANTOMS
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
RADIATION EFFECTS
RADIATIONS
RADIOISOTOPES
RADIOLOGY
RADIOTHERAPY
SPATIAL DOSE DISTRIBUTIONS
STRUCTURAL MODELS
THERAPY
THERMOLUMINESCENT DOSIMETRY
TISSUE-EQUIVALENT MATERIALS
VISIBLE RADIATION
YEARS LIVING RADIOISOTOPES