DOSIMETRIC FUNDAMENTALS IN THE DETERMINATION OF THE VOLUME DOSE IN X-RAY IRRADIATION

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Radiologia Clinica (Switzerland) Published 1965-1974 as Radiol. Clin. Biol. Changed to Diagn. Imag.

OSTI ID:4842178

Luethy, H

In a homogeneous water phantom under normal irradiation conditions (70 kv, 2.5 mm Al filter, 45 cm FHD, and 168 cm/sup 2/ input field) the isodose distribution was measured. The volume dose thus determined agrees with the value calculated by Mayneord. A large-surface ionization chamber placed in the radiation path, and which completely surrounded the useful radiation beam, needs a dose magnitude with the dimensions r x cm/sup 2/. The volume dose can be determined clearly from this magnitude at constant focusskin distance. Only the tube voltage in kv is a variable. Every surface chamber of this type requires, on account of the very strong wave length dependence restricted by the special construction, an individual calibration. Only under these conditions and with knowledge of the radiation quality is its measurement magnitude a measurement for the volume dose. (tr-auth)

• Research Organization: Universitats-Institut fur Rontgendiagnostik und Strahlentherapie Burgerspital, Basel
• NSA Number: NSA-16-017941
• OSTI ID: 4842178
• Journal Information: Radiologia Clinica (Switzerland) Published 1965-1974 as Radiol. Clin. Biol. Changed to Diagn. Imag., Journal Name: Radiologia Clinica (Switzerland) Published 1965-1974 as Radiol. Clin. Biol. Changed to Diagn. Imag. Vol. Vol: 30; ISSN RACLA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ALUMINUM
BEAMS
BODY
CONFIGURATION
DISTRIBUTION
ELECTROMAGNETISM
ELECTRON TUBES
HEALTH AND SAFETY
HOMOGENEOUS REACTORS
IONIZATION CHAMBERS
IRRADIATION
LENSES
MAN
MATHEMATICS
MOCKUP
QUANTITATIVE ANALYSIS
RADIATION DETECTORS
RADIATION DOSES
SHIELDING
SKIN
SURFACES
THICKNESS
WATER
X RADIATION