✍ Scribed by J.C. Kluyver; C. Van Der Leun; P.M. Endt
No coin nor oath required. For personal study only.
Energies and intensities have been measured of 7-rays produced in the 2SMg(p, V)26A1 reaction at six resonances in the region Ep = 0.3 --0.7 MeV. Tl~in enriched 2SMg targets were bombarded with protons from a Cockroft-Walton generator, and v-rays were detected with a scintillation spectrometer. The resulting pulse spectra were analyzed with a differential discriminator and photographed on an oscilloscope screen.
The resonances investigated here could be assigned to 2SMg by comparison with runs on enriched 24Mg and 26Mg t~rgets. The 25Mg resonances are found at 321,395, 441, 501, 518, 580, 607, 667 and 688, all + 15 keV. The 501 and 518 keV resonances could not be resolved completely, but they show almost identical y-ray spectra. The resonances at 667 and688 key have not been investigated in detail.
The six resonances investigated in detail show complicated y-ray spectra, different from resonance to resonance. A list of v-ray energies and intensities is given in Tables and.
From absolute v-ray yield measurements the radiation widths of all resonances (multiplied by a statistical factor) could be determined.
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