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William Duane (physicist)

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William Duane (February 17, 1872 – March 7, 1935) was an American physicist who conducted research on radioactivity and X-rays and their usage in the treatment of cancer. He developed the Duane-Hunt Law and Duane's hypothesis. He worked with Pierre and Marie Curie in their University of Paris laboratory for six years and developed a method for generating quantities of radon-222 "seeds" from radium for usage in early forms of brachytherapy.

He was a professor at the University of Colorado Boulder, professor-emeritus and chair of biophysics at Harvard University and research fellow of physics at the Harvard Cancer Commission. He received the John Scott Medal and the Comstock Prize in Physics in 1922 and the Leonard Prize of the American Roentgen Ray Society in 1923.

Early life and education

Duane was born in Philadelphia, Pennsylvania, to Charles William and Emma Cushman (Lincoln) Duane.[1] He was a direct descendant of Benjamin Franklin from his father's side.[2]

He received an A.B. degree in mathematics from the University of Pennsylvania in 1892 and was valedictorian of his class. He studied at Harvard University and graduated with an A.B. in 1893. He worked as an assistant to John Trowbridge in his research on Hertzian waves and received an A.M. degree in 1895.[3]

He received a Tyndall Fellowship from Harvard and conducted research on electromagnetism under Emil Warburg at the University of Berlin. His doctoral advisor was Walter Nernst from the University of Gottingen. Duane received his doctorate degree from the University of Berlin after his dissertation Uber elektrolytische Thermoketten was accepted by Max Planck.[2]

Academic career

Display about Duane at the University of Colorado Boulder

He worked as a professor of physics at the University of Colorado Boulder from 1898 to 1907. He spent a one-year sabbatical with Pierre and Marie Curie in their radium research laboratory at the University of Paris in 1906[4] and was then invited to work with them from 1907 to 1912.[5] He published 17 scientific papers during this time mostly around the properties of X-rays from radioactive sources and the measurement of heat generated from radioactive disintegration. Although none of the papers were in direct collaboration with the Curies, he worked closely with them and it was reported that when Marie Curie visited America years later, she stated that she most wanted to see "Niagara Falls, The Grand Canyon and William Duane"[3]

Duane refined a technique for extracting radon-222 gas from radium sulfate solutions. Solutions containing 1 gram of radium were "milked" to create radon "seeds" of about 20 millicuries each. These "seeds" were distributed throughout Paris for use in endocurietherapy. Duane perfected this "milking" technique during his time in Paris and referred to the device as a "radium cow".[4]

He returned to the United States in 1913 and worked in a joint role as assistant professor of physics at Harvard and Research Fellow in Physics of the Harvard Cancer Commission.[6] The Cancer Commission was founded in 1901 and hired Duane to investigate the usage of radium emanations in the treatment of cancer.[7] In 1915 he built Boston's first "radium cow" and thousands of patients were treated with the radon-222 generated from it.[8] He published eight papers on the technical details of using radioactive material and X-Rays in the treatment of cancer. In 1917, Harvard created the chair of bio-physics for him.[5]

Duane made important contributions to the technical details of measuring X-ray dosage in terms of the ionization of air.[9] He conducted research to determine the structure of matter and on the mechanism of radiation.[10] He developed the Duane-Hunt law, relating the minimum wavelength of X-rays to the threshold voltage of the cathode rays that excite them; and Duane's hypothesis of quantized translative momentum transfer.[11]

En 1925, Arthur Compton demostró que la dispersión de rayos X de 130 000 voltios de los primeros dieciséis elementos de la tabla periódica (desde el hidrógeno hasta el azufre) estaba polarizada . Duane lideró un esfuerzo para demostrar que la interpretación de Compton sobre el efecto Compton era errónea. Duane llevó a cabo una serie de experimentos para refutar a Compton, pero en cambio encontró evidencia de que Compton tenía razón. En 1924, Duane admitió que así era. [ 12 ]

Se desempeñó como consejero de la Société de Physique de 1920 a 1923, como presidente de la división de ciencias físicas del Consejo Nacional de Investigación de 1922 a 1923, como presidente de la Sociedad para la Investigación del Cáncer en 1923 y como vicepresidente de la sección B de la Asociación Estadounidense para el Avance de la Ciencia de 1927 a 1928. [ 13 ]

Tras su jubilación de Harvard en 1934, se le otorgó el título de profesor emérito de biofísica. [ 6 ]

Muerte

A partir de 1925, Duane comenzó a sufrir un deterioro continuo de su salud a causa de la diabetes. Falleció el 7 de marzo de 1935 debido a un segundo derrame cerebral paralítico. [ 14 ] Fue enterrado en el cementerio Laurel Hill en Filadelfia, Pensilvania. [ 15 ]

Honores y premios

Duane fue elegido miembro de la Academia Estadounidense de Artes y Ciencias en 1914. [ 16 ] En 1920, fue elegido miembro de la Sociedad Filosófica Estadounidense . [ 17 ] Recibió la Medalla John Scott [ 18 ] y el Premio Comstock de Física de la Academia Nacional de Ciencias , de la cual era miembro, en 1922. [ 19 ] [ 20 ] Recibió el Premio Leonard de la Sociedad Estadounidense de Rayos Roentgen en 1923. [ 5 ]

Recibió títulos honoríficos de Doctor en Ciencias (Sc.D.) de la Universidad de Pensilvania en 1922 y de la Universidad de Colorado Boulder en 1923. [ 14 ]

En 1971, el edificio del departamento de física de la Universidad de Colorado Boulder fue nombrado en su honor. [ 21 ]

Publicaciones seleccionadas

  • Duane, William (1905). "Sur l'ionisation de l'air en présence de l'émanation du radium". Journal de Physique Théorique et Appliquée. 4 (1): 605–619. doi:10.1051/jphystap:019050040060500. ISSN 0368-3893.
  • Duane, William (1905). "Sur l'ionization produite entre les plateaux paralleles par l'émanation du radium". Comptes rendus de l'Académie des Sciences. 140: 786–788.
  • Duane, William; Hunt, Franklin L. (1915). "On X-Ray Wave-Lengths". Physical Review. 6 (2): 166–172. Bibcode:1915PhRv....6..166.. doi:10.1103/PhysRev.6.166.
  • Duane, William (1915). "On the Extraction and Purification of Radium Emanation". Physical Review. 5 (4): 311–314. Bibcode:1915PhRv....5..311D. doi:10.1103/PhysRev.5.311. ISSN 0031-899X.

References

Citations

  1. ↑Bridgman 1936, p. 23.
  2. 12Forman, Paul. "William Duane". www.encyclopedia.com. Retrieved 11 June 2021.
  3. 12Bridgman 1936, p. 24.
  4. 12Coursey, Bert M. (2017). "150th Anniversary of the Birth of Marie Curie". Applied Radiation and Isotopes: Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine. 130. National Institute of Standards & Technology: 280–284. doi:10.1016/j.apradiso.2017.10.028. PMID 29079418.
  5. 123"William Duane Papers". www.archives.colorado.edu. University of Colorado Boulder. Retrieved 11 June 2021.
  6. 12Bridgman 1936, p. 25.
  7. ↑Webster 1993, p. 1607.
  8. ↑Brucer, Marshall (November 1993). "William Duane and the radium cow: An American contribution to the emerging atomic age". Medical Physics. 20 (6): 1601–1605. Bibcode:1993MedPh..20.1601B. doi:10.1118/1.596947. PMID 8309431. Retrieved 15 June 2021.
  9. ↑Bridgman 1936, p. 28.
  10. ↑del Regato, Juan A. (1985). "Chapter VI: William Duane". Radiological Physicists. American Institute of Physics. pp. 65–75. ISBN 978-0-88318-469-1.
  11. ↑Bridgman 1936, pp. 28–33.
  12. ↑Allison 1965, pp. 84–86.
  13. ↑Bridgman 1936, p. 26.
  14. 12Bridgman 1936, p. 27.
  15. ↑"William Duane". remembermyjourney.com. webCemeteries. Retrieved 2 January 2025.
  16. ↑"William Duane". American Academy of Arts & Sciences. 2023-02-09. Retrieved 2023-09-20.
  17. ↑"APS Member History". search.amphilsoc.org. Retrieved 2023-09-20.
  18. ↑"John Scott Award Philadelphia, PA Recipients - Award Recipients 1921-1930". www.garfield.library.upenn.edu. Retrieved 15 June 2021.
  19. ↑"William Duane". www.nasonline.org. Retrieved 2023-09-20.
  20. ↑"Comstock Prize in Physics". National Academy of Sciences. Retrieved 13 February 2011.
  21. ↑"University of Colorado Duane Physics and Astrophysics and Gamow Tower: Photo 1". localhistory.boulderlibrary.org. Retrieved 13 June 2021.

Sources

  • Allison, Samuel K. (1965). "Arthur Holly Compton 1892–1962". Biographical Memoirs. 38. National Academy of Sciences: 81–110. ISSN 0077-2933. OCLC 1759017.
  • Bridgman, P.W. (1936). Biographical Memoir of William Duane 1872-1935(PDF). Pennsylvania State University Press.
  • Webster, Edward W. (1993). "The origins of Medical Physics in the USA: William Duane, Ph.D., 1913-1920"(PDF). Medical Physics. 20 (6): 1607–1610. Bibcode:1993MedPh..20.1607W. doi:10.1118/1.597159. PMID 8309432. Retrieved June 13, 2021.

Further reading

  • Forman, Paul (1981). "Duane, William". In Charles Coulson Gillespie (ed.). Dictionary of Scientific Biography. Vol. 4. Charles Scribner's Sons. pp. 194–197. ISBN 0-684-16964-9.
  • The Transfer in Quanta of Radiation Momentum to Matter -- Duane 9 (5): 158 -- Proceedings of the National Academy of Sciences
  • William Duane Papers - University of Colorado Boulder Library