Über die selbständige Polarisierung des Spins der Elektronen durch Ausstrahlung bei der Bewegung auf einer Spiralbahn im Magnetfeld |
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Authors: | ProfDr A A Sokolow I M Ternow W G Bagrow D W Galzow W T Shukowski |
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Institution: | 1. Physikalisches Institut der Universit?t Marburg, Lahn
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Abstract: | The nuclear half-life of the 287 keV second excited state of75Se, populated by the reaction75As(p, n)75Se* has been measured by the delayed coincidence technique. NaJ(Tl)- and Ge(Li)-detectors were used for measuringγ-energies and time-spectra. By slope analysis of the time-spectra we obtained a half-life of T1/2(75Se, 287 keV)=(30.0±0.4) ns. Possible spin assignments for the 287 keV state in75Se from logft-values derived fromβ +-decay data of75Br to this level byBaskova et al are 3/2? and 1/2?. Application of an external magnetic field of 24 kG to the target nuclei yielded no measurable perturbation of the time-spectra, thus a spin value of 1/2? for this level seems to be more probable. |
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