Electromagnetic coupling of the isomer and ground state in 176Lu

F. Stedile, J. Burnett, J..J Carroll, H. v. Carrel, F. Käppeler, U. Kneissl, C. Kohstall, P. v. Neumann-Cosel, H.H. Pitz, R. Propri, M. Scheck, P. Ugorowski, S. Walter, K. Wisshak

Research output: Contribution to journalArticle

Abstract

The odd–odd isotope 176Lu has a half-life of 4.08 1010 years, undergoing a decay to 176Hf. Since its formation is unambiguously s-process neutron capture, it long has been viewed as a possible s-process chro-nometer. However, due to a temperature-dependent coupling between the ground state and an isomer at 123 keV in the stellar photon bath, 176Lu might be an s-process thermometer instead. Starting with the astrophysical background, preliminary results from two NRF experiments, performed at the 4.3 MeV Stuttgart Dynamitron accelerator, will be reported. Furthermore, first results from photoactivation experiments on 176Lu will be presented.
Original languageEnglish
Pages (from-to)442-447
JournalLaser Physics
Volume14
Issue number4
Publication statusPublished - 2004
Externally publishedYes

Cite this

Stedile, F., Burnett, J., Carroll, J. J., v. Carrel, H., Käppeler, F., Kneissl, U., ... Wisshak, K. (2004). Electromagnetic coupling of the isomer and ground state in 176Lu. Laser Physics, 14(4), 442-447.
Stedile, F. ; Burnett, J. ; Carroll, J..J ; v. Carrel, H. ; Käppeler, F. ; Kneissl, U. ; Kohstall, C. ; v. Neumann-Cosel, P. ; Pitz, H.H. ; Propri, R. ; Scheck, M. ; Ugorowski, P. ; Walter, S. ; Wisshak, K. / Electromagnetic coupling of the isomer and ground state in 176Lu. In: Laser Physics. 2004 ; Vol. 14, No. 4. pp. 442-447.
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abstract = "The odd–odd isotope 176Lu has a half-life of 4.08 1010 years, undergoing a decay to 176Hf. Since its formation is unambiguously s-process neutron capture, it long has been viewed as a possible s-process chro-nometer. However, due to a temperature-dependent coupling between the ground state and an isomer at 123 keV in the stellar photon bath, 176Lu might be an s-process thermometer instead. Starting with the astrophysical background, preliminary results from two NRF experiments, performed at the 4.3 MeV Stuttgart Dynamitron accelerator, will be reported. Furthermore, first results from photoactivation experiments on 176Lu will be presented.",
author = "F. Stedile and J. Burnett and J..J Carroll and {v. Carrel}, H. and F. K{\"a}ppeler and U. Kneissl and C. Kohstall and {v. Neumann-Cosel}, P. and H.H. Pitz and R. Propri and M. Scheck and P. Ugorowski and S. Walter and K. Wisshak",
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Stedile, F, Burnett, J, Carroll, JJ, v. Carrel, H, Käppeler, F, Kneissl, U, Kohstall, C, v. Neumann-Cosel, P, Pitz, HH, Propri, R, Scheck, M, Ugorowski, P, Walter, S & Wisshak, K 2004, 'Electromagnetic coupling of the isomer and ground state in 176Lu' Laser Physics, vol. 14, no. 4, pp. 442-447.

Electromagnetic coupling of the isomer and ground state in 176Lu. / Stedile, F.; Burnett, J.; Carroll, J..J; v. Carrel, H.; Käppeler, F.; Kneissl, U.; Kohstall, C.; v. Neumann-Cosel, P.; Pitz, H.H.; Propri, R.; Scheck, M.; Ugorowski, P.; Walter, S.; Wisshak, K.

In: Laser Physics, Vol. 14, No. 4, 2004, p. 442-447.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electromagnetic coupling of the isomer and ground state in 176Lu

AU - Stedile, F.

AU - Burnett, J.

AU - Carroll, J..J

AU - v. Carrel, H.

AU - Käppeler, F.

AU - Kneissl, U.

AU - Kohstall, C.

AU - v. Neumann-Cosel, P.

AU - Pitz, H.H.

AU - Propri, R.

AU - Scheck, M.

AU - Ugorowski, P.

AU - Walter, S.

AU - Wisshak, K.

PY - 2004

Y1 - 2004

N2 - The odd–odd isotope 176Lu has a half-life of 4.08 1010 years, undergoing a decay to 176Hf. Since its formation is unambiguously s-process neutron capture, it long has been viewed as a possible s-process chro-nometer. However, due to a temperature-dependent coupling between the ground state and an isomer at 123 keV in the stellar photon bath, 176Lu might be an s-process thermometer instead. Starting with the astrophysical background, preliminary results from two NRF experiments, performed at the 4.3 MeV Stuttgart Dynamitron accelerator, will be reported. Furthermore, first results from photoactivation experiments on 176Lu will be presented.

AB - The odd–odd isotope 176Lu has a half-life of 4.08 1010 years, undergoing a decay to 176Hf. Since its formation is unambiguously s-process neutron capture, it long has been viewed as a possible s-process chro-nometer. However, due to a temperature-dependent coupling between the ground state and an isomer at 123 keV in the stellar photon bath, 176Lu might be an s-process thermometer instead. Starting with the astrophysical background, preliminary results from two NRF experiments, performed at the 4.3 MeV Stuttgart Dynamitron accelerator, will be reported. Furthermore, first results from photoactivation experiments on 176Lu will be presented.

M3 - Article

VL - 14

SP - 442

EP - 447

JO - Laser Physics

JF - Laser Physics

SN - 1054-660X

IS - 4

ER -

Stedile F, Burnett J, Carroll JJ, v. Carrel H, Käppeler F, Kneissl U et al. Electromagnetic coupling of the isomer and ground state in 176Lu. Laser Physics. 2004;14(4):442-447.