Results 231 to 240 of about 2,920,178 (300)

Cobalt-60 Radiation Measurements

Radiology, 1958
Gamma-beam measurements of cobalt teletherapy equipment present certain problems not encountered with conventional roentgen-therapy apparatus. The gamma rays are of higher energy and are emitted continuously from a source material of significant dimensions. These factors affect the measurements of the radiation in various ways.
C B, BRAESTRUP, R T, MOONEY
openaire   +2 more sources

Cobalt 60 Protection Design

Radiology, 1955
The recent report by the National Committee on Radiation Protection, published as Bureau of Standards Handbook 54 (1) includes basic information on cobalt 60 teletherapy shielding. So far as experimental attenuation data for the primary and 90° scattered radiation are concerned, the Handbook is particularly complete; data based on experience with ...
C B, BRAESTRUP, R T, MOONEY
openaire   +2 more sources

Cobalt 60 beam therapy

Journal of the Faculty of Radiologists, 1954
Summary 1. The Eldorado cobalt 60 beam therapy unit is described briefly. The activity of the source is estimated at 1190 curies. Operation is simple and service problems have been few. Treatment applicators and other accessories are described. 2. The floor plan of the installation is shown.
A M, EVANS   +4 more
openaire   +2 more sources

Cobalt-60 Bombs

Health Physics, 1960
Based on stated assumptions. the ratio of potential external energy releases from fission products in local fall-out compared to the Co/sup 60/ that may be produced can vary from a factor of 40. based on an exposure period from 1 hr to 1 month after a detonation. to 0.17 based on an exposure period from the twenty-fourth hour to 35 years.
openaire   +2 more sources

A Cobalt 60 Telecurie Unit

The British Journal of Radiology, 1953
An account is furnished of some modifications made on the Bryant Symons 10-gramme Radium Beam Unit. An apparatus of this type was installed at the Royal Cancer Hospital in February, 1952, containing 3·25 curies of cobalt 60. Five new uranium nozzles were added, namely two triangular fields 8 × 6 cm, two pentagonal or notched fields 8 × 5 cm and a 5 × 2
M, LEDERMAN, C A, GREATOREX
openaire   +2 more sources

Home - About - Disclaimer - Privacy