Abstract.
Isomeric states in 214Th and 213Th were identified by means of γ -rays measured in delayed coincidence with the implanted evaporation residues. These were produced in irradiations of 164Dy with 54Cr projectiles and separated in-flight by the velocity filter SHIP. An isomeric state of I π = 8+ with a half-life of (1.24±0.12) μs was identified in 214Th . The configuration π[1h 9/2 ⊗ 2f 7/2] was assigned to this state. An isomeric state with a half-life of (1.4±0.4) μs was observed in 213Th . Tentatively it was assigned to an I π = 13/2+ state.
Similar content being viewed by others
References
E. Caurier, M. Rejmund, H. Grawe, Phys. Rev. C 67, 054310 (2003).
K. Hauschild, M. Rejmund, H. Grawe, E. Caurier, F. Nowacki, F. Becker, Y. Le Coz, W. Korten, J. Döring, M. Gorska, K. Schmidt, O. Dorvaux, K. Helariutta, P. Jones, R. Julin, S. Juutinen, H. Kettunen, M. Leino, M. Muikku, P. Nieminen, P. Rahkila, J. Uusitalo, F. Azaiez, M. Belleguic, Phys. Rev. Lett. 87, 072501 (2001).
L.G. Mann, K.H. Maier, A. Aprahamian, J.A. Becker, D.J. Decman, E.A. Henry, R.A. Meyer, N. Roy, W. Stoffl, G.L. Struble, Phys. Rev. C 38, 74 (1988).
A.E. Stuchbery, G.D. Dracoulis, A.P. Byrne, A.R. Poletti, Nucl. Phys. A 486, 397 (1988).
D. Horn., O. Hausser, B. Haas, T.K. Alexander, T. Faestermann, H.R. Andrews, D. Ward, Nucl. Phys. A 317, 520 (1979).
A.-P. Leppänen, J. Uusitalo, S. Eeckhaudt, T. Enqvist, K. Eskola, T. Grahn, F.P. Heßberger, P.T. Greenlees, P. Jones, R. Julin, S. Juutinen, H. Kettunen, P. Kuusiniemi, M. Leino, P. Nieminen, J. Pakarinen, J. Perkowski, P. Rahkila, C. Scholey, G. Sletten, Eur. Phys. J. A 25, s01, 183 (2005).
B. Focke, A. Goldmann, J. Hadijuana, M.v. Hartrott, K. Nishiyama, D. Riegel, Z. Phys. A 259, 269 (1973).
T.W. Conlon, Nucl. Phys. A 212, 531 (1973).
A.R. Poletti, G.D. Dracoulis, C. Fahlander, A.P. Byrne, Nucl. Phys. A 440, 118 (1985).
F.P. Heßberger, S. Hofmann, I. Kojouharov, D. Ackermann, Eur. Phys. J. A 22, 253 (2004).
K. Valli, E.K. Hyde, Phys. Rev. 176, 1377 (1968).
D. Vermeulen, H.G. Clerc, W. Lang, K.H. Schmidt, G. Munzenberg, Z. Phys. A 294, 149 (1980).
K.H. Schmidt, C.C. Sahm, K. Pielenz, H.G. Clerc, Z. Phys. A 316, 19 (1984).
G. Münzenberg, W. Faust, S. Hofmann, P. Armbruster, K. Güttner, H. Ewald, Nucl. Instrum. Methods 161, 65 (1979).
S. Hofmann, G. Münzenberg, Rev. Mod. Phys. 72, 733 (2000).
W. Reisdorf, Z. Phys. A 300, 227 (1981).
F.P. Heßberger, S. Antalic, B. Streicher, S. Hofmann, D. Ackermann, B. Kindler, I. Kojouharov, P. Kuusiniemi, M. Leino, B. Lommel, R. Mann, K. Nishio, S. Saro, B. Sulignano, Eur. Phys. J. A 26, 233 (2005).
I.M. Band, M.B. Trzhaskovskaya, C.W. Nestor jr., P.O. Tikkanen, S. Raman, At. Data Nucl. Data Tables 81, 1 (2002).
J.J. Ressler, R.F. Casten, N.V. Zamfir, C.W. Beausang, R.B. Cakirli, H. Ai, H. Amro, M.A. Caprio, A.A. Hecht, A. Heinz, S.D. Langdown, E.A. McCutchan, D.A. Meyer, C. Plettner, P.H. Regan, M.J.S. Sciacchitano, A.D. Yamamoto, Phys. Rev. C 69, 034317 (2004).
I. Bergstrom, J. Blomqvist, C.J. Herrlander, J. Hattula, O. Knuuttila, E. Liukkonen, V. Rahkonen, Z. Phys. A 287, 219 (1978).
A.R. Poletti, G.D. Dracoulis, C. Fahlander, Nucl. Phys. A 380, 335 (1982).
T. Kohno, M. Adachi, S. Fukuda, M. Taya, M. Fukuda, H. Taketani, Y. Gono, M. Sugawara, Y. Ishikawa, Phys. Rev. C 33, 392 (1986).
E. Caurier, F. Nowacki, Acta Phys. Pol. B 30, 705 (1999).
E. Browne, Nucl. Data Sheets. 99, 649 (2003).
A. Artna-Cohen, Nucl. Data Sheets 66, 171 (1992).
Y.A. Akovali, Nucl. Data Sheets 76, 127 (1995).
P.M. Möller, J.R. Nix, W.D. Meyers, W.J. Swiatecki, At. Data Nucl. Data Tables 59, 185 (1995).
K. Nishio, H. Ikezoe, S. Mitsuoka, J. Lu, Phys. Rev. C 62, 014602 (2000).
Author information
Authors and Affiliations
Corresponding author
Additional information
R. Krücken
Rights and permissions
About this article
Cite this article
Khuyagbaatar, J., Hofmann, S., Heßberger, F.P. et al. Isomeric states in 214Th and 213Th . Eur. Phys. J. A 34, 355–361 (2007). https://doi.org/10.1140/epja/i2007-10512-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epja/i2007-10512-5