Gamma-rays from Na, Mg, Al, Si, P, S, and PbO₂ targets under cyclotron bombardment by 3.7-Mev deuterons have been measured by coincidence absorption of Compton electrons. With PbO₂, Al, and Mg Compton distributions were also obtained by means of a thin lens magnetic spectrometer. Correlation of several of the measured values can be made with excited states of N¹⁴, O¹⁷, and Si²⁸ as obtained from other information. The predominant gamma-rays have moderately large energy, being 8.8 Mev in one case, indicating a preference for direct transitions from states of high excitation to the ground state of the product nucleus.
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D. E. Alburger (1949) studied this question.
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