Letter | Published:

The Lithium-7 Nucleus

Naturevolume 168page429 (1951) | Download Citation

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Abstract

OBSERVATIONS by Rose and Wilson1 in the reaction 10B(n,α′)7*Li(γ)7Li and by Littauer2 in 7Li(p,p′) 7*Li(γ)7Li have shown that the 480-keV. gamma ray is emitted isotropically in these reactions. In the former experiment the yield of radiation was measured relative to the direction of emission of the short-range alpha particle. In the latter case it was determined with respect to the incident proton. These observations constitute strong evidence that the spin of the 480-keV. state is ½, although in both cases the lack of a correlation could arise from other special circumstances. Accordingly, we have looked for a correlation between the short-range proton and the gamma-ray in the 6Li(d,p′)7*Li(γ)7Li reaction.

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References

  1. 1

    Rose, B., and Wilson, A. R. W., Phys. Rev., 78, 68 (1950).

  2. 2

    Littauer, R. M., Proc. Phys. Soc., A, 63, 294 (1950).

  3. 3

    This instrument, built specifically for separating the lithium isotopes, follows the design of Smythe, Rumbaugh and West, Phys. Rev., 45, 724 (1934).

  4. 4

    Littauer, R. M., Rev. Sci. Inst., 21, 750 (1950).

  5. 5

    Whaling, W., and Bonner, T. W., Phys. Rev., 79, 258 (1950). Krone, Hanna and Inglis, Phys. Rev., 80, 603 (1950).

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Affiliations

  1. Department of Physics, Johns Hopkins University, Baltimore, Maryland

    • C. M. CLASS
    •  & S. S. HANNA

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https://doi.org/10.1038/168429a0

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