The Natural Widths of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>K</mi></math></span>-Series of W(74)

F. K. Richtmyer; S. W. Barnes

doi:10.1103/PhysRev.46.352

Access by Xinjiang University

The Natural Widths of the $K$ -Series of W(74)

F. K. Richtmyer^* and S. W. Barnes

Department of Physics, Cornell University

^*The senior author acknowledges with thanks assistance from the Heckscher Research Council of Cornell University.

PDF

Phys. Rev. 46, 352 – Published 1 September, 1934

DOI: https://doi.org/10.1103/PhysRev.46.352

Abstract

By means of a two-crystal x-ray spectrometer of high resolving power at short wave-length, the full widths at half maximum of the $K$ -series of W(74) have been measured. The observed widths $W_{O}$ in the (1,+1) position of the crystals have been corrected to true widths $W_{T}$ by use of the formula $W_{T} = W_{O} - W_{R}$ where $W_{R}$ is the width of the rocking curve of the crystals in the (1,-1) position. It is shown that, in the short wave-length region under consideration the (1,-1) rocking curves obey the Hoyt equation. By using Weisskopf's equation for the shape of a spectral line, the above correction formula results. The following (corrected) full widths at half maximum (in volts) are obtained: $K α_{2}$ , 43.3; $α_{1}$ , 43.0; $β_{3}$ , 50.0; $β_{1}$ , 48.6; $γ_{2}$ , 37.0; $γ_{1}$ , 37.0; $δ_{2}$ , 34.0; $δ_{1}$ , 34.

References (18)

F. K. Richtmyer and S. W. Barnes, Phys. Rev. 37, 1695 (1931)
Schwarzschild, Phys. Rev. 32, 162 (1928) Ehrenberg and Mark, Zeits. f. Physik 42, 807 (1927)
S. W. Barnes and L. D. Palmer, Phys. Rev. 43, 1050 (1933)
Archer Hoyt, Phys. Rev. 40, 477 (1932)
John H. Williams, Phys. Rev. 40, 791 (1932)
F. K. Richtmyer and S. W. Barnes, Phys. Rev. 43, 1049 (1933)
F. K. Richtmyer and S. W. Barnes, Phys. Rev. 35, 1428 (1931)
Barnes and Richtmyer, Rev. Sci. Inst. 5, October (1934)
A. H. Compton, Phys. Rev. 7, 646 (1916)
L. A. DuBridge, Phys. Rev. 37, 392 (1931)
F. K. Richtmyer, S. W. Barnes and K. V. Manning, Phys. Rev. 44, 311 (1933)
Allison and Williams, Phys. Rev. 35, 1477 (1930)
Allison, Phys. Rev. 38, 203 (1931)
Weisskopf, Phys. Zeits. 34, 1 (1933)
Hoyt [4]
Allison, Phys. Rev. 44, 63 (1933)
Omitted endnote
Allison, [13] unpublished data by the authors

[c1] F. K. Richtmyer and S. W. Barnes, Phys. Rev. 37, 1695 (1931)

[c2] Schwarzschild, Phys. Rev. 32, 162 (1928) Ehrenberg and Mark, Zeits. f. Physik 42, 807 (1927)

[c3] S. W. Barnes and L. D. Palmer, Phys. Rev. 43, 1050 (1933)

[c4] Archer Hoyt, Phys. Rev. 40, 477 (1932)

[c5] John H. Williams, Phys. Rev. 40, 791 (1932)

[c6] F. K. Richtmyer and S. W. Barnes, Phys. Rev. 43, 1049 (1933)

[c7] F. K. Richtmyer and S. W. Barnes, Phys. Rev. 35, 1428 (1931)

[c8] Barnes and Richtmyer, Rev. Sci. Inst. 5, October (1934)

[c9] A. H. Compton, Phys. Rev. 7, 646 (1916)

[c10] L. A. DuBridge, Phys. Rev. 37, 392 (1931)

[c11] F. K. Richtmyer, S. W. Barnes and K. V. Manning, Phys. Rev. 44, 311 (1933)

[c12] Allison and Williams, Phys. Rev. 35, 1477 (1930)

[c13] Allison, Phys. Rev. 38, 203 (1931)

[c14] Weisskopf, Phys. Zeits. 34, 1 (1933)

[c15] Hoyt [4]

[c16] Allison, Phys. Rev. 44, 63 (1933)

[c17] Omitted endnote

[c18] Allison, [13] unpublished data by the authors

Physical Review Journals Archive

Export citation

Export citation

The Natural Widths of the $K$ -Series of W(74)

Abstract

References (18)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

The Natural Widths of the K-Series of W(74)

Abstract

References (18)

The Natural Widths of the $K$ -Series of W(74)