IMPORTANCE OF PARAMETERS--ANGLE OF ROTATION, DEPTH OF FOCUS, WIDTH OF FIELD, IN ROTATIONAL TELECOBALT THERAPY

Journal Article · Sat Sep 01 04:00:00 EDT 1962 · Radiobiol. Radioterap. Fis. Med.

OSTI ID:4718890

Sighinolfi, R

To apply rotational therapy with Cobalt 60 sources, it is necessary to overcome the difficulties connected with a preliminary knowledge of dosage distribution in the treatment zone, taking into account, during the cycling rotation, the variations of both the source-to-skin distance and of the latter and the seat to be irradiated. With the use of a source of Co/sup 60/ it is necessary, as in normal voltage rotational therapy, to refer to the three pirameters: the pendulation angle to be chosen; the determination of the size of the field over the zone of treatment; the exact position of thc cycling rotation centre in the section of the body, to be irradiated. To this purpose a rather quick method is suggested, that is, use of the calculated diagrams and lists in the text, supplying exact data with slight differences. The eventual photographic dosimetry can give an immediate idea of the shape and position of the more important isodose charts, which nearly approach those obtained by calculation. (auth)

• Research Organization: Universita, Bologna; and Ospedale S. Maria Delle Croci, Ravenna, Italy
• NSA Number: NSA-17-021553
• OSTI ID: 4718890
• Journal Information: Radiobiol. Radioterap. Fis. Med., Journal Name: Radiobiol. Radioterap. Fis. Med. Vol. Vol: (3) 17
• Country of Publication: Country unknown/Code not available
• Language: Italian

Related Subjects

BIOLOGY AND MEDICINE
COBALT 60
GAMMA RADIATION
MATHEMATICS
MEASURED VALUES
MEDICINE
PHOTOGRAPHY
RADIATION DOSES
RADIOTHERAPY