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Title: Overview: Five decades of brachytherapy

Journal Article · · Nucl. Sci. Appl.; (United States)
OSTI ID:6708281

Brachytherapy started in 1930. Ra-226 was the radioisotope for cancer therapy at that time and much has been learned about its properties since then. One of the major findings at that time was output. When the author started, there was no T factor. People did not know how many R units were produced by 1.0 mg of radium filtered by 0.5 mm of platinum at 1.0 cm. So one was in a bit of chaos from that point of view. Eventually, that was settled in the 1930's. It was very exciting to find out that, although the national laboratories of the U.S., England, France and Germany had had values of this T factor varying from about five to seven (when they're only supposed to have less than 1% error); the value was really 8.3 and it was quite a landmark. This led to an improved knowledge of dose and effects. Developments over the next five decades are discussed in detail.

Research Organization:
Emeritus Consultant, Churchill Hospital, Oxford
OSTI ID:
6708281
Journal Information:
Nucl. Sci. Appl.; (United States), Vol. 2:3
Country of Publication:
United States
Language:
English