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RADIUM IN DERMATOLOGY

RADIUM IN DERMATOLOGY Abstract The rational and successful application of radium therapy requires a knowledge of the fundamental physical properties of radium and of the biochemical tissue reactions to radium energy. In the continuous process of spontaneous disintegration of radium, there are produced alpha and beta electromagnetic particles or rays and gamma rays, the latter being nonmaterial electromagnetic pulsations of the ether. The alpha particle is the nucleus of a helium atom with two positive charges of electricity, and because it is readily absorbed by the glass container or the varnished surface of an applicator, is of neglible value in radiotherapy. Beta rays or particles are negative electrons of varying high velocity with corresponding differences in their power of penetration. Those of low speed are absorbed by from 1 to 5 mm. of aluminum, and 2 mm. of lead will absorb all beta rays (Failla). Gamma rays are of different wave lengths and are References 1. Highman, W. J., and Rulison, R. H.: Tr. Sect. Dermat. A. M. A. , 1922, p. 195. 2. Morrow, H., and Taussig, L.: Am. J. Roentgenol. 10:212 ( (March) ) 1923. 3. Sutton, R. L.: Tr. Sect. Dermat. A. M. A. 1921, p. 161. 4. Pfahler, G. E.: Tr. Sect. Dermat. A. M. A. , 1920, p. 230. 5. Abbe, R.: Urol. & Cutan. Rev. 25:65 ( (Feb.) ) 1921. 6. Newcomet, W. E.: Am. J. Roentgenol. 7:337 ( (July) ) 1920. 7. Pfahler, G. E.: Am. J. Roentgenol. 7:344 ( (July) ) 1920. 8. Lewandowsky, F.: Tuberkulose der Haut (Enzykl. d. klin. Med.) , Berlin, J. Springer , 1916, p. 290. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Dermatology and Syphilology American Medical Association

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Publisher
American Medical Association
Copyright
Copyright © 1924 American Medical Association. All Rights Reserved.
ISSN
0096-6029
DOI
10.1001/archderm.1924.02360190041003
Publisher site
See Article on Publisher Site

Abstract

Abstract The rational and successful application of radium therapy requires a knowledge of the fundamental physical properties of radium and of the biochemical tissue reactions to radium energy. In the continuous process of spontaneous disintegration of radium, there are produced alpha and beta electromagnetic particles or rays and gamma rays, the latter being nonmaterial electromagnetic pulsations of the ether. The alpha particle is the nucleus of a helium atom with two positive charges of electricity, and because it is readily absorbed by the glass container or the varnished surface of an applicator, is of neglible value in radiotherapy. Beta rays or particles are negative electrons of varying high velocity with corresponding differences in their power of penetration. Those of low speed are absorbed by from 1 to 5 mm. of aluminum, and 2 mm. of lead will absorb all beta rays (Failla). Gamma rays are of different wave lengths and are References 1. Highman, W. J., and Rulison, R. H.: Tr. Sect. Dermat. A. M. A. , 1922, p. 195. 2. Morrow, H., and Taussig, L.: Am. J. Roentgenol. 10:212 ( (March) ) 1923. 3. Sutton, R. L.: Tr. Sect. Dermat. A. M. A. 1921, p. 161. 4. Pfahler, G. E.: Tr. Sect. Dermat. A. M. A. , 1920, p. 230. 5. Abbe, R.: Urol. & Cutan. Rev. 25:65 ( (Feb.) ) 1921. 6. Newcomet, W. E.: Am. J. Roentgenol. 7:337 ( (July) ) 1920. 7. Pfahler, G. E.: Am. J. Roentgenol. 7:344 ( (July) ) 1920. 8. Lewandowsky, F.: Tuberkulose der Haut (Enzykl. d. klin. Med.) , Berlin, J. Springer , 1916, p. 290.

Journal

Archives of Dermatology and SyphilologyAmerican Medical Association

Published: Jan 1, 1924

References