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Measurement of Nuclear Magnetic Moments in Atomic Beams


THE purpose of this communication is to describe a magnetic resonance experiment which we have performed with three radio-frequency loops situated in the C field of an atomic-beam apparatus, and to propose an application. Apart from the three loops, we used a conventional ‘flop-in’ arrangement with short A and B magnets. The method to be described allowed the measurement in a short apparatus of transitions for which Δm J = 0; such lines are usually unobservable except in machines with long A and B magnets1. The atomic beam was potassium-39, for which J = ½ in the ground-level and I = 3/2.

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  1. 1

    Kusch, P., Phys. Rev., 101, 627 (1956).

  2. 2

    King, J. G., and Jaccarino, V., Phys. Rev., 94, 1610 (1954).

  3. 3

    Eisinger, J. T., Bederson, B., and Feld, B. T., Phys. Rev., 86, 73 (1952).

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