- Access by Xinjiang University
X-Ray Line Intensities and Cathode-Ray Retardation in Thick Targets of Silver
Phys. Rev. 44, 258 – Published 15 August, 1933
DOI: https://doi.org/10.1103/PhysRev.44.258
Abstract
-line intensities from thick silver targets have been measured in arbitrary units for voltages up to 180 kv, with emergence angles from 1 to 25°. A practical use of these data is the determination of the voltage which will give the maximum efficiency of line emission at any emergence angle. At 1° the best voltage is 70 kv but at 25° it is well above 180 kv. These data are also used in conjunction with data on thin targets to get information as to the retardation of cathode rays in silver. For this purpose the thick-target data are corrected to eliminate the effects of target absorption, indirect production of line rays through fluorescence and loss of cathode rays by rediffusion. The loss of energy per unit distance along the path of a cathode ray varies as the -1.4 power of the speed, just as it does in light elements according to more direct evidence collected by E. J. Williams.
References (13)
- H. Kulenkampff, Ann. d. Physik 87, 597 (1928) Phys. Zeits. 30, 515 (1929)
- D. L. Webster, W. W. Hansen and F. B. Duveneck, Phys. Rev. 43, 839 (1933)
- D. L. Webster, H. Clark and W. W. Hansen, Phys. Rev. 37, 115 (1931)
- D. L. Webster, W. W. Hansen and F. B. Duveneck, Rev. Sci. Inst. 3, 729 (1932)
- D. L. Webster and H. Clark, Proc. Nat. Acad. Sci. 3, 181 (1917) A. Jönsson, Zeits. f. Physik 36, 426 (1926) S. K. Allison, Phys. Rev. 30, 245 (1927)
- H. Kulenkampff, Ann. d. Physik 69, 548 (1922)
- W. W. Hansen and K. B. Stoddard, Phys. Rev. 43, 701 (1933)
- D. L. Webster, Proc. Nat. Acad. Sci. 14, 339 (1928)
- E. J. Williams, Proc. Roy. Soc. A130, 310 (1931)
- E. Becker, Ann. d. Physik 78, 209 (1925)
- P. White and G. Millington, Proc. Roy. Soc. A120, 701 (1928)
- E. J. Williams, Proc. Roy. Soc. A130, 328 (1931) ibid.A135, 108 (1932)
- H. Bethe, Ann. d. Physik 5, 325 (1930)