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  • Access by Xinjiang University

Duration of Fluorescence of Mercury Vapor

R. N. Ghosh

  • Physics Department, Allahabad University, India

Phys. Rev. 26, 376 – Published 1 September, 1925

DOI: https://doi.org/10.1103/PhysRev.26.376

Abstract

Discussion of experiments by Phillips, Wood and Vanderlingen.—It is suggested that the fluorescence observed with fresh vapor is due to absorption of light by diatomic molecules which thus acquire energy of about 7 volts. The persistence of the fluorescence is accounted for by assuming that many of these activated molecules transmit the energy to others by collisions of the second type, energy which is eventually radiated in several jumps corresponding to the bands observed. If such activated molecules are present, they should ionize Cs and K molecules mixed with them.

References (9)

  1. Saha and Sur, Phil. Mag. (Sept. 1924)
  2. Omitted endnote

  3. R. W. Wood, Phil. Mag. 18, p. 247
  4. Phillips, Proc. Roy. Soc. 89, p. 41
  5. Wood and Vanderlingen, Astrophys. J. (Oct. 1921) p. 152
  6. "Origin of Spectra" by Foote and Mohler, p. 106 Sommerfeld, English edition, p. 440
  7. Lenz, Phys. Zeits. 21, p. 691 (1920)
  8. R. W. Wood, Proc. Roy. Soc. vol. 99
  9. R. W. Wood, Researches in Physical Optics, p. 80

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