THE SPECIFICATION OF TREATMENT CONDITIONS AND SOURCE REQUIREMENTS FOR COBALT 60 THERAPY UNITS
Journal Article
·
· Brit. J. Radiol.
The criteria for the choice of source size and radiation conditions for a Co/sup 60/ therapy unit are considered. It is concluded that the S.S.D. should be between the limits 60 te 80 cm with a dose-rate of 50 to l50 rads/min. The effect of source dimensions om penumbra and of self absorption loss on source efficiency with practicable specifie activities are discussed, and suggestions made for an optimum source suitable for use in three successive types of unit as the activity falls. (auth)
- Research Organization:
- Churchill Hospital, Oxford
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-001342
- OSTI ID:
- 4821677
- Journal Information:
- Brit. J. Radiol., Journal Name: Brit. J. Radiol. Vol. Vol: 34
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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