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.
Similar content being viewed by others
References
Braid, T.H., Chasman, R.R., Erskine, J.R., Friedman, A.M.: Phys. Lett.18, 149 (1965)
Egidy, T. von, Elze, Th.W., Huizenga, J.R.: Nucl. Phys. A145, 306 (1970)
Boyno, J.S., Elze, Th.W., Huizenga, J.R.: Nucl. Phys. A157, 263 (1970)
Dzhelepov, B.S., Ivanov, R.B., Nedovesov, V.G.: Soviet Phys. JETP19, 1027 (1964)
Baranov, S.A., Gadhiev, M.K., Kulakov, V.M., Matinskij, V.M.: Sov. J. Nucl. Phys.1, 397 (1965)
Ahmad, I., Friedman, A.M., Unik, J.P.: Nucl. Phys. A119, 27 (1968)
Crane, W.W.T., Iddings, C.M.: Phys. Rev.95, 1702 (1954)
Takahashi, K., Morinaga, H.: Nucl. Phys.15, 664 (1960)
Trautmann, N., Denig, R., Kaffrell, N., Herrmann, G.: Z. Naturforsch.23 a, 2127 (1968)
Trautmann, N, Kaffrell, N., Denig, R., Herrmann, G.: Proc. 3rd Intern. Protactinium Conf., Schloß Elmau near Mittenwald, April 1969; BMBW-FB K 71-17 (1971) p. 3-1
Egidy, T. von, Morinaga, H., Lingeman, E.W.A., Polak, P.: Z. Naturforsch.24 a, 1831 (1969)
Trautmann, N., Denig, R., Herrmann, G.: Radiochim Acta11, 168 (1969)
Kaffrell, N., Herrmann, G.: Nucl. Phys. A118, 78 (1968)
Kaffrell, N., Trautmann, N., Denig, R., Herrmann, G.: Proc. 3rd Intern. Protactinium Conf., Schloß Elmau near Mittenwald, April 1969; BMBW-FB K 71-17 (1971) p. 4-1
Kaffrell, N., Trautmann, N., Denig, R., Herrmann, G.: To be published
Mattauch, J.H.E., Thiele, W., Wapstra, A.H.: Nucl. Phys.67, 1 (1966)
Nuclear Data B1-6-111 (1966)
Alaga, G., Alder, K., Bohr, A., Mottelson, B.R.: Mat. Fys. Medd. Dan. Vid. Selsk.29, No. 9 (1955)
Malov, I.A., Soloviev, V.G.: Sov. J. Nucl. Phys.5, 403 (1967)
Erskine, J.R., Friedman, A.M.: Nucl. Phys. A145, 306 (1970)
Author information
Authors and Affiliations
Additional information
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.
Rights and permissions
About this article
Cite this article
Kaffrell, N., Trautmann, N. & Denig, R. The decay of 8.7 min237Pa. Z. Physik 266, 21–27 (1974). https://doi.org/10.1007/BF01668659
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01668659