TERMIUM Plus®

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CONTACT RADIATION THERAPY [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-11-27

English

Subject field(s)
  • Radiological Physics (Theory and Application)
DEF

An x-ray system used for therapy with the x-ray tube port placed in contact with or within 5 centimeters of the surface being treated.

OBS

Because of very short SSD [sourcesurface distance] and low voltage, the contact therapy beam produces a very rapidly decreasing depth dose in tissue. For that reason, if the beam is incident on a patient, the skin surface is maximally irradiated but the underlying tissues are spared to an increasing degree with dept.

French

Domaine(s)
  • Physique radiologique et applications
DEF

Radiothérapie utilisant des tubes spécialement construits pour que la distance de l'anticathode à la peau soit très courte (généralement inférieure à 5 cm).

Spanish

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