Isomer studies for nuclei near the proton drip line in the mass 130-160 region

D. M. Cullen; P. J.R. Mason; S. V. Rigby; S. Khan; A. M. Kishada; B. J. Varley; C. Scholey; T. Grahn; P. Greenlees; P. Rahkila; P. M. Jones; R. Julin; S. Juutinen; M. Leino; A. P. Leppänen; P. Nieminen; M. Nyman; J. Pakarinen; J. Uusitalo

doi:10.1063/1.2827270

Isomer studies for nuclei near the proton drip line in the mass 130-160 region

D. M. Cullen, P. J.R. Mason, S. V. Rigby, S. Khan, A. M. Kishada, B. J. Varley, C. Scholey, T. Grahn, P. Greenlees, P. Rahkila, P. M. Jones, R. Julin, S. Juutinen, M. Leino, A. P. Leppänen, P. Nieminen, M. Nyman, J. Pakarinen, J. Uusitalo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

This report details the status of an experimental research programme which has studied isomeric states in the mass 130-160 region of the nuclear chart. Several new isomers have been established and characterised near the proton drip Une using a recoil isomer tagging technique at the University of Jyväskylä, Finland. The latest experiments have been performed with a modified setup where the standard GREAT focal-plane double-sided silicon-strip detector was changed to a dual multi-wire proportional-counter arrangement. This new setup has improved capability for short-lived isomer studies where high focal-plane rates can be tolerated. The results of key recent experiments for nuclei situated above (¹⁵³Yb, ¹⁵²Tm) and below ( ¹³⁶Pm, ¹⁴²Tb) the N=82 shell gap were presented along with an interpretation for the isomers. Finally, the future prospects of the technique, using an isomer-tagged differential-plunger setup, were discussed. This technique will be capable of establishing the deformation of the states above the isomers and will aid in the process of assigning underlying single-particle configurations to the isomeric states.

Original language	English
Title of host publication	Proton Emitting Nuclei and Related Topics - International Conference, PROCON 2007
Pages	278-284
Number of pages	7
DOIs	https://doi.org/10.1063/1.2827270
Publication status	Published - 2007
Event	International Conference on Proton Emitting Nuclei and Related Topics, PROCON 2007 - Lisbon, Portugal Duration: 17 Jun 2007 → 23 Jun 2007

Publication series

Name	AIP Conference Proceedings
Volume	961
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Conference on Proton Emitting Nuclei and Related Topics, PROCON 2007
Country/Territory	Portugal
City	Lisbon
Period	17/06/07 → 23/06/07

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10.1063/1.2827270

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Cullen, D. M., Mason, P. J. R., Rigby, S. V., Khan, S., Kishada, A. M., Varley, B. J., Scholey, C., Grahn, T., Greenlees, P., Rahkila, P., Jones, P. M., Julin, R., Juutinen, S., Leino, M., Leppänen, A. P., Nieminen, P., Nyman, M., Pakarinen, J., & Uusitalo, J. (2007). Isomer studies for nuclei near the proton drip line in the mass 130-160 region. In Proton Emitting Nuclei and Related Topics - International Conference, PROCON 2007 (pp. 278-284). (AIP Conference Proceedings; Vol. 961). https://doi.org/10.1063/1.2827270

@inproceedings{59defc3e98bf49219eec67e989c55a5b,

title = "Isomer studies for nuclei near the proton drip line in the mass 130-160 region",

abstract = "This report details the status of an experimental research programme which has studied isomeric states in the mass 130-160 region of the nuclear chart. Several new isomers have been established and characterised near the proton drip Une using a recoil isomer tagging technique at the University of Jyv{\"a}skyl{\"a}, Finland. The latest experiments have been performed with a modified setup where the standard GREAT focal-plane double-sided silicon-strip detector was changed to a dual multi-wire proportional-counter arrangement. This new setup has improved capability for short-lived isomer studies where high focal-plane rates can be tolerated. The results of key recent experiments for nuclei situated above (153Yb, 152Tm) and below ( 136Pm, 142Tb) the N=82 shell gap were presented along with an interpretation for the isomers. Finally, the future prospects of the technique, using an isomer-tagged differential-plunger setup, were discussed. This technique will be capable of establishing the deformation of the states above the isomers and will aid in the process of assigning underlying single-particle configurations to the isomeric states.",

keywords = "Gamma-ray arrays, Isomeric states, K-isomers, Mass 130-160 proton drip-line region, Multi-wire proportional counters, Recoil-ion transport unit RITU, Recoil-isomer tagging",

author = "Cullen, {D. M.} and Mason, {P. J.R.} and Rigby, {S. V.} and S. Khan and Kishada, {A. M.} and Varley, {B. J.} and C. Scholey and T. Grahn and P. Greenlees and P. Rahkila and Jones, {P. M.} and R. Julin and S. Juutinen and M. Leino and Lepp{\"a}nen, {A. P.} and P. Nieminen and M. Nyman and J. Pakarinen and J. Uusitalo",

year = "2007",

doi = "10.1063/1.2827270",

language = "English",

isbn = "9780735404755",

series = "AIP Conference Proceedings",

pages = "278--284",

booktitle = "Proton Emitting Nuclei and Related Topics - International Conference, PROCON 2007",

note = "International Conference on Proton Emitting Nuclei and Related Topics, PROCON 2007 ; Conference date: 17-06-2007 Through 23-06-2007",

}

Cullen, DM, Mason, PJR, Rigby, SV, Khan, S, Kishada, AM, Varley, BJ, Scholey, C, Grahn, T, Greenlees, P, Rahkila, P, Jones, PM, Julin, R, Juutinen, S, Leino, M, Leppänen, AP, Nieminen, P, Nyman, M, Pakarinen, J & Uusitalo, J 2007, Isomer studies for nuclei near the proton drip line in the mass 130-160 region. in Proton Emitting Nuclei and Related Topics - International Conference, PROCON 2007. AIP Conference Proceedings, vol. 961, pp. 278-284, International Conference on Proton Emitting Nuclei and Related Topics, PROCON 2007, Lisbon, Portugal, 17/06/07. https://doi.org/10.1063/1.2827270

Isomer studies for nuclei near the proton drip line in the mass 130-160 region. / Cullen, D. M.; Mason, P. J.R.; Rigby, S. V. et al.
Proton Emitting Nuclei and Related Topics - International Conference, PROCON 2007. 2007. p. 278-284 (AIP Conference Proceedings; Vol. 961).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Isomer studies for nuclei near the proton drip line in the mass 130-160 region

AU - Cullen, D. M.

AU - Mason, P. J.R.

AU - Rigby, S. V.

AU - Khan, S.

AU - Kishada, A. M.

AU - Varley, B. J.

AU - Scholey, C.

AU - Grahn, T.

AU - Greenlees, P.

AU - Rahkila, P.

AU - Jones, P. M.

AU - Julin, R.

AU - Juutinen, S.

AU - Leino, M.

AU - Leppänen, A. P.

AU - Nieminen, P.

AU - Nyman, M.

AU - Pakarinen, J.

AU - Uusitalo, J.

PY - 2007

Y1 - 2007

N2 - This report details the status of an experimental research programme which has studied isomeric states in the mass 130-160 region of the nuclear chart. Several new isomers have been established and characterised near the proton drip Une using a recoil isomer tagging technique at the University of Jyväskylä, Finland. The latest experiments have been performed with a modified setup where the standard GREAT focal-plane double-sided silicon-strip detector was changed to a dual multi-wire proportional-counter arrangement. This new setup has improved capability for short-lived isomer studies where high focal-plane rates can be tolerated. The results of key recent experiments for nuclei situated above (153Yb, 152Tm) and below ( 136Pm, 142Tb) the N=82 shell gap were presented along with an interpretation for the isomers. Finally, the future prospects of the technique, using an isomer-tagged differential-plunger setup, were discussed. This technique will be capable of establishing the deformation of the states above the isomers and will aid in the process of assigning underlying single-particle configurations to the isomeric states.

AB - This report details the status of an experimental research programme which has studied isomeric states in the mass 130-160 region of the nuclear chart. Several new isomers have been established and characterised near the proton drip Une using a recoil isomer tagging technique at the University of Jyväskylä, Finland. The latest experiments have been performed with a modified setup where the standard GREAT focal-plane double-sided silicon-strip detector was changed to a dual multi-wire proportional-counter arrangement. This new setup has improved capability for short-lived isomer studies where high focal-plane rates can be tolerated. The results of key recent experiments for nuclei situated above (153Yb, 152Tm) and below ( 136Pm, 142Tb) the N=82 shell gap were presented along with an interpretation for the isomers. Finally, the future prospects of the technique, using an isomer-tagged differential-plunger setup, were discussed. This technique will be capable of establishing the deformation of the states above the isomers and will aid in the process of assigning underlying single-particle configurations to the isomeric states.

KW - Gamma-ray arrays

KW - Isomeric states

KW - K-isomers

KW - Mass 130-160 proton drip-line region

KW - Multi-wire proportional counters

KW - Recoil-ion transport unit RITU

KW - Recoil-isomer tagging

UR - http://www.scopus.com/inward/record.url?scp=71749099789&partnerID=8YFLogxK

U2 - 10.1063/1.2827270

DO - 10.1063/1.2827270

M3 - Conference contribution

SN - 9780735404755

T3 - AIP Conference Proceedings

SP - 278

EP - 284

BT - Proton Emitting Nuclei and Related Topics - International Conference, PROCON 2007

T2 - International Conference on Proton Emitting Nuclei and Related Topics, PROCON 2007

Y2 - 17 June 2007 through 23 June 2007

ER -

Isomer studies for nuclei near the proton drip line in the mass 130-160 region

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