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Title: First identification of excited states in {sup 169}Ir

Abstract

Gamma rays populating the {alpha}-decaying isomeric state in {sup 169}Ir have been observed for the first time. The experiment employed the recoil-decay tagging method using the JUROGAM {gamma}-ray spectrometer, the RITU gas-filled recoil separator and the GREAT spectrometer located at the RITU focal plane. The {gamma}-ray cascade feeding the isomeric {alpha}-decaying state exhibits a rotational structure consistent with a h{sub 11/2} proton coupled to a triaxially deformed core. The experimental results are compared with predictions from total Routhian surface calculations.

Authors:
; ; ; ; ; ; ;  [1]; ; ; ; ; ; ; ; ; ; ; ;  [2]
  1. Department of Physics, Royal Institute of Technology, SE-10691 Stockholm (Sweden)
  2. Department of Physics, University of Jyvaeskylae, P.O. Box 35 (YFL), FIN-40014 Jyvaeskylae (Finland) (and others)
Publication Date:
OSTI Identifier:
20995283
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.75.054321; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; EXCITED STATES; GAMMA RADIATION; GAMMA SPECTROMETERS; IRIDIUM 169; PROTONS

Citation Formats

Sandzelius, M., Cederwall, B., Andgren, K., Baeck, T., Hadinia, B., Johnson, A., Lagergren, K., Wyss, R., Scholey, C., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P. M., Julin, R., Juutinen, S., Kettunen, H., Leino, M., Leppaenen, A.-P., Nieminen, P., and Pakarinen, J.. First identification of excited states in {sup 169}Ir. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.054321.
Sandzelius, M., Cederwall, B., Andgren, K., Baeck, T., Hadinia, B., Johnson, A., Lagergren, K., Wyss, R., Scholey, C., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P. M., Julin, R., Juutinen, S., Kettunen, H., Leino, M., Leppaenen, A.-P., Nieminen, P., & Pakarinen, J.. First identification of excited states in {sup 169}Ir. United States. doi:10.1103/PHYSREVC.75.054321.
Sandzelius, M., Cederwall, B., Andgren, K., Baeck, T., Hadinia, B., Johnson, A., Lagergren, K., Wyss, R., Scholey, C., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P. M., Julin, R., Juutinen, S., Kettunen, H., Leino, M., Leppaenen, A.-P., Nieminen, P., and Pakarinen, J.. Tue . "First identification of excited states in {sup 169}Ir". United States. doi:10.1103/PHYSREVC.75.054321.
@article{osti_20995283,
title = {First identification of excited states in {sup 169}Ir},
author = {Sandzelius, M. and Cederwall, B. and Andgren, K. and Baeck, T. and Hadinia, B. and Johnson, A. and Lagergren, K. and Wyss, R. and Scholey, C. and Eeckhaudt, S. and Grahn, T. and Greenlees, P. T. and Jones, P. M. and Julin, R. and Juutinen, S. and Kettunen, H. and Leino, M. and Leppaenen, A.-P. and Nieminen, P. and Pakarinen, J.},
abstractNote = {Gamma rays populating the {alpha}-decaying isomeric state in {sup 169}Ir have been observed for the first time. The experiment employed the recoil-decay tagging method using the JUROGAM {gamma}-ray spectrometer, the RITU gas-filled recoil separator and the GREAT spectrometer located at the RITU focal plane. The {gamma}-ray cascade feeding the isomeric {alpha}-decaying state exhibits a rotational structure consistent with a h{sub 11/2} proton coupled to a triaxially deformed core. The experimental results are compared with predictions from total Routhian surface calculations.},
doi = {10.1103/PHYSREVC.75.054321},
journal = {Physical Review. C, Nuclear Physics},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}