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The decay of 8.7 min237Pa

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Zeitschrift für Physik

Abstract

The beta and gamma radiations of237Pa have been investigated employing semiconductor and scintillation spectrometers and coincidence techniques. Sources of237Pa were obtained after bombardments of238U with bremsstrahlung and 14-MeV neutrons and subsequent chemical separation. From the total of 18γ-rays following the decay of 8.7±0.2 min237Pa 17 transitions, representing 99.9% of theγ-ray intensity, could be placed in a level scheme of237U. AQ β- value of 2.25±0.1 MeV has been determined.

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The authors are indebted to Prof. G. Herrmann for his interest in this work, to Prof. B. Ziegler and his co-workers for irradiations with bremsstrahlung at the Mainz electron accelerator, to Prof. U. Kneißl for activations at the Gießen electron accelerator, and to Dipl. Chem. H. Ahrens, K.H. Gläsel, R. Heimann and U.Tharun for cooperation. Financial support from the Bundesministerium für Bildung und Wissenschaft is gratefully acknowledged.

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Kaffrell, N., Trautmann, N. & Denig, R. The decay of 8.7 min237Pa. Z. Physik 266, 21–27 (1974). https://doi.org/10.1007/BF01668659

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