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The authors describe in detail an apparatus for the application of gamma rays by distant irradiation. The method has been used for the last three years. The apparatus permits the treatment of two patients at the same time, a procedure used first by Mallet and Colier in 1925. The distribution of equal intensities of the radiation were measured with an electroscope. The focus skin distances used were 12, 14 and 16 cm. and the intensities obtained in the depth at 10 cm. were 20 to 21, 24 to 25, and 26 to 27, respectively. The applications are given daily in divided doses repeated from ten to twelve times, the total dose to each field being from 18 to 24 gram hours of radium destroyed, which is equal to from 24 to 36 D. of Proust and Mallet. Intratumoral insertions of radium or radon capsules are added wherever possible. The action
Théorie et pratique de la télécuriethérapie.. JAMA. 1931;97(16):1173. doi:10.1001/jama.1931.02730160055034