alpha decay of the pi h(11/2) isomer in Ir-164

M.C. Drummond, D. O'Donnell, R.D. Page, D.T. Joss, L. Capponi, D.M. Cox, I.G. Darby, L. Donosa, F. Filmer, T. Grahn, P.T. Greenlees, K. Hauschild, A. Herzan, U. Jakobsson, P.M. Jones, R. Julin, S. Juutinen, S. Ketelhut, M. Leino, A. Lopez-Martens & 14 others A.K. Mistry, P. Nieminen, P. Peura, P. Rahkila, S. Rinta-Antila, P. Ruotsalainen, M. Sandzelius, J. Saren, B. Saygi, C. Scholey, J. Simpson, J. Sorri, A. Thornthwaite, J. Uusitalo

Research output: Contribution to journalArticle

Abstract

The α-decay branch of the πh11/2 isomer in Ir164 has been identified using the GREAT spectrometer. The Ir164 nuclei were produced using the 92Mo(78Kr,p5n)164Ir reaction and separated in flight using the recoil ion transport unit (RITU) gas-filled separator. The measured α-decay energy of 6880±10 keV allowed the excitation of the πh11/2 state in Re160 to be deduced as 166±14 keV. The half-life of Ir164 was measured with improved precision to be 70±10μ s and an α-decay branching ratio of 4±2% was determined. Improved half-life and branching ratio measurements were also obtained for Ir165, but no evidence was found for the ground-state decays of either Ir164 or Ir165.
Original languageEnglish
Article number064309
JournalPhysical Review C
Volume89
Issue number6
DOIs
Publication statusPublished - 16 Jun 2014
Externally publishedYes

Fingerprint

alpha decay
isomers
decay
half life
recoil ions
separators
flight
spectrometers
nuclei
ground state
gases
excitation
energy

Keywords

  • neutron-deficient isotopes
  • total data readout
  • proton dripline
  • nuclear structure
  • emission
  • tungsten
  • osmium
  • energy
  • model
  • ritu

Cite this

Drummond, M. C., O'Donnell, D., Page, R. D., Joss, D. T., Capponi, L., Cox, D. M., ... Uusitalo, J. (2014). alpha decay of the pi h(11/2) isomer in Ir-164. Physical Review C, 89(6), [064309]. https://doi.org/10.1103/PhysRevC.89.064309
Drummond, M.C. ; O'Donnell, D. ; Page, R.D. ; Joss, D.T. ; Capponi, L. ; Cox, D.M. ; Darby, I.G. ; Donosa, L. ; Filmer, F. ; Grahn, T. ; Greenlees, P.T. ; Hauschild, K. ; Herzan, A. ; Jakobsson, U. ; Jones, P.M. ; Julin, R. ; Juutinen, S. ; Ketelhut, S. ; Leino, M. ; Lopez-Martens, A. ; Mistry, A.K. ; Nieminen, P. ; Peura, P. ; Rahkila, P. ; Rinta-Antila, S. ; Ruotsalainen, P. ; Sandzelius, M. ; Saren, J. ; Saygi, B. ; Scholey, C. ; Simpson, J. ; Sorri, J. ; Thornthwaite, A. ; Uusitalo, J. / alpha decay of the pi h(11/2) isomer in Ir-164. In: Physical Review C. 2014 ; Vol. 89, No. 6.
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abstract = "The α-decay branch of the πh11/2 isomer in Ir164 has been identified using the GREAT spectrometer. The Ir164 nuclei were produced using the 92Mo(78Kr,p5n)164Ir reaction and separated in flight using the recoil ion transport unit (RITU) gas-filled separator. The measured α-decay energy of 6880±10 keV allowed the excitation of the πh11/2 state in Re160 to be deduced as 166±14 keV. The half-life of Ir164 was measured with improved precision to be 70±10μ s and an α-decay branching ratio of 4±2{\%} was determined. Improved half-life and branching ratio measurements were also obtained for Ir165, but no evidence was found for the ground-state decays of either Ir164 or Ir165.",
keywords = "neutron-deficient isotopes, total data readout, proton dripline, nuclear structure, emission, tungsten, osmium, energy, model, ritu",
author = "M.C. Drummond and D. O'Donnell and R.D. Page and D.T. Joss and L. Capponi and D.M. Cox and I.G. Darby and L. Donosa and F. Filmer and T. Grahn and P.T. Greenlees and K. Hauschild and A. Herzan and U. Jakobsson and P.M. Jones and R. Julin and S. Juutinen and S. Ketelhut and M. Leino and A. Lopez-Martens and A.K. Mistry and P. Nieminen and P. Peura and P. Rahkila and S. Rinta-Antila and P. Ruotsalainen and M. Sandzelius and J. Saren and B. Saygi and C. Scholey and J. Simpson and J. Sorri and A. Thornthwaite and J. Uusitalo",
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Drummond, MC, O'Donnell, D, Page, RD, Joss, DT, Capponi, L, Cox, DM, Darby, IG, Donosa, L, Filmer, F, Grahn, T, Greenlees, PT, Hauschild, K, Herzan, A, Jakobsson, U, Jones, PM, Julin, R, Juutinen, S, Ketelhut, S, Leino, M, Lopez-Martens, A, Mistry, AK, Nieminen, P, Peura, P, Rahkila, P, Rinta-Antila, S, Ruotsalainen, P, Sandzelius, M, Saren, J, Saygi, B, Scholey, C, Simpson, J, Sorri, J, Thornthwaite, A & Uusitalo, J 2014, 'alpha decay of the pi h(11/2) isomer in Ir-164' Physical Review C, vol. 89, no. 6, 064309. https://doi.org/10.1103/PhysRevC.89.064309

alpha decay of the pi h(11/2) isomer in Ir-164. / Drummond, M.C.; O'Donnell, D.; Page, R.D.; Joss, D.T.; Capponi, L.; Cox, D.M.; Darby, I.G.; Donosa, L.; Filmer, F.; Grahn, T.; Greenlees, P.T.; Hauschild, K.; Herzan, A.; Jakobsson, U.; Jones, P.M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Lopez-Martens, A.; Mistry, A.K.; Nieminen, P.; Peura, P.; Rahkila, P.; Rinta-Antila, S.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Saygi, B.; Scholey, C.; Simpson, J.; Sorri, J.; Thornthwaite, A.; Uusitalo, J.

In: Physical Review C, Vol. 89, No. 6, 064309, 16.06.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - alpha decay of the pi h(11/2) isomer in Ir-164

AU - Drummond, M.C.

AU - O'Donnell, D.

AU - Page, R.D.

AU - Joss, D.T.

AU - Capponi, L.

AU - Cox, D.M.

AU - Darby, I.G.

AU - Donosa, L.

AU - Filmer, F.

AU - Grahn, T.

AU - Greenlees, P.T.

AU - Hauschild, K.

AU - Herzan, A.

AU - Jakobsson, U.

AU - Jones, P.M.

AU - Julin, R.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Leino, M.

AU - Lopez-Martens, A.

AU - Mistry, A.K.

AU - Nieminen, P.

AU - Peura, P.

AU - Rahkila, P.

AU - Rinta-Antila, S.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Saren, J.

AU - Saygi, B.

AU - Scholey, C.

AU - Simpson, J.

AU - Sorri, J.

AU - Thornthwaite, A.

AU - Uusitalo, J.

PY - 2014/6/16

Y1 - 2014/6/16

N2 - The α-decay branch of the πh11/2 isomer in Ir164 has been identified using the GREAT spectrometer. The Ir164 nuclei were produced using the 92Mo(78Kr,p5n)164Ir reaction and separated in flight using the recoil ion transport unit (RITU) gas-filled separator. The measured α-decay energy of 6880±10 keV allowed the excitation of the πh11/2 state in Re160 to be deduced as 166±14 keV. The half-life of Ir164 was measured with improved precision to be 70±10μ s and an α-decay branching ratio of 4±2% was determined. Improved half-life and branching ratio measurements were also obtained for Ir165, but no evidence was found for the ground-state decays of either Ir164 or Ir165.

AB - The α-decay branch of the πh11/2 isomer in Ir164 has been identified using the GREAT spectrometer. The Ir164 nuclei were produced using the 92Mo(78Kr,p5n)164Ir reaction and separated in flight using the recoil ion transport unit (RITU) gas-filled separator. The measured α-decay energy of 6880±10 keV allowed the excitation of the πh11/2 state in Re160 to be deduced as 166±14 keV. The half-life of Ir164 was measured with improved precision to be 70±10μ s and an α-decay branching ratio of 4±2% was determined. Improved half-life and branching ratio measurements were also obtained for Ir165, but no evidence was found for the ground-state decays of either Ir164 or Ir165.

KW - neutron-deficient isotopes

KW - total data readout

KW - proton dripline

KW - nuclear structure

KW - emission

KW - tungsten

KW - osmium

KW - energy

KW - model

KW - ritu

U2 - 10.1103/PhysRevC.89.064309

DO - 10.1103/PhysRevC.89.064309

M3 - Article

VL - 89

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 6

M1 - 064309

ER -

Drummond MC, O'Donnell D, Page RD, Joss DT, Capponi L, Cox DM et al. alpha decay of the pi h(11/2) isomer in Ir-164. Physical Review C. 2014 Jun 16;89(6). 064309. https://doi.org/10.1103/PhysRevC.89.064309