| Autor: |
Galina LS, Karpova IA, Liutova NA |
| Jazyk: |
ruština |
| Zdroj: |
Meditsinskaia radiologiia [Med Radiol (Mosk)] 1991; Vol. 36 (4), pp. 40-3. |
| Abstrakt: |
Radiotherapy of certain tumor sites requires small-size fields of irradiation (less than or equal to 4 cm) with a good dose plateau and a sharp dose gradient on the field border. For this purpose a kit of accessories to beta-beam units includes a device with disposable collimators forming round fields with 20, 30 and 40 mm diameters, an oblong field 20 X 30 mm and segmental fields with axes 20 X 26 and 26 X 32 mm at a distance of 75 cm from a source. Dosimetric characterization of collimators was studied; dose fields formed by open beams using collimators were compared. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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