High-Energy Gamma Rays from the Proton Bombardment of Fluorine

G. K. Farney; H. H. Givin; B. D. Kern; T. M. Hahn

doi:10.1103/PhysRev.97.720

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High-Energy Gamma Rays from the Proton Bombardment of Fluorine

G. K. Farney^*, H. H. Givin^‡, B. D. Kern, and T. M. Hahn^†

Department of Physics, University of Kentucky, Lexington, Kentucky

^*Now at Bell Telephone Laboratories, Murray Hill, New Jersey.
^†Now at Virginia Polytechnic Institute, Blacksburg, Virginia.
^‡Now at International Business Machines Corporation, Louisville, Kentucky.

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Phys. Rev. 97, 720 – Published 1 February, 1955

DOI: https://doi.org/10.1103/PhysRev.97.720

Abstract

Resonances for emission of gamma rays of energy greater than 8 Mev in the reaction $F^{19} (p, γ) {Ne}^{20}$ have been measured for proton energies from 550 to 1450 kev using a thin target. Resonances were seen at 669, 874, 935, 980, 1090, 1280, 1320, 1355, 1380, and 1430 kev. The effect of false high-energy gamma-ray counts resulting from the nearly simultaneous detection of two 6-7 Mev gamma rays in the reaction $F^{19} (p, α γ) O^{16}$ was noted and a method for correcting for this effect was devised. The intensities of gamma rays for the two reactions were compared at each resonance. Also, the angular distribution of the 12-Mev gamma rays emitted at the 669-kev ( $p, γ$ ) resonance was measured and found to be isotropic to within two percent probable error.

References (13)

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[c1] F. Ajzenberg and T. Lauritsen, Revs. Modern Phys. 24, 321 (1952)

[c2] Rae, Rutherglen, and Smith, Proc. Phys. Soc. (London) A63, 775 (1950)

[c3] J. H. Carver and D. H. Wilkinson, Proc. Phys. Soc. (London) A64, 199 (1951)

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[c8] M. E. Rose, Phys. Rev. 91, 610 (1953)

[c9] H. H. Bateman, Phil. Mag. 20, 704 (1910)

[c10] E. Marsden and T. Barrat, Proc. Roy. Soc. (London) 23, 367 (1911)

[c11] E. Rutherford and H. Geiger, Phil. Mag. 20, 698 (1910)

[c12] D. H. Wilkinson and A. B. Clegg, Phil. Mag. 44, 1322 (1953)

[c13] R. M. Sinclair, Phys. Rev. 93, 1082 (1954)

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High-Energy Gamma Rays from the Proton Bombardment of Fluorine

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