In-beam conversion-electron spectroscopy of Hg-180

R. D. Page; A. N. Andreyev; D. R. Wiseman; P. A. Butler; T. Grahn; P. T. Greenlees; R. -D. Herzberg; M. Huyse; G. D. Jones; P. M. Jones; D. T. Joss; R. Julin; S. Juutinen; H. Kankaanpaa; A. Keenan; H. Kettunen; P. Kuusiniemi; M. Leino; M. Muikku; P. Nieminen; P. Rahkila; G. I. Rainovski; C. Scholey; J. Uusitalo; K. Van de Vel; P. Van Duppen

doi:10.1103/PhysRevC.84.034308

In-beam conversion-electron spectroscopy of Hg-180

R. D. Page^*, A. N. Andreyev, D. R. Wiseman, P. A. Butler, T. Grahn, P. T. Greenlees, R. -D. Herzberg, M. Huyse, G. D. Jones, P. M. Jones, D. T. Joss, R. Julin, S. Juutinen, H. Kankaanpaa, A. Keenan, H. Kettunen, P. Kuusiniemi, M. Leino, M. Muikku, P. NieminenP. Rahkila, G. I. Rainovski, C. Scholey, J. Uusitalo, K. Van de Vel, P. Van Duppen

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Excited states in Hg-180 were populated using the Sm-147(Ar-36,3n)Hg-180 reaction and studied by in-beam conversion-electron spectroscopy. Conversion electrons emitted at the target position were measured using the Silicon Array for Conversion Electron Detection (SACRED) spectrometer and tagged through the characteristic alpha decays of Hg-180 detected in a position-sensitive silicon strip detector located at the focal plane of the gas-filled recoil separator Recoil Ion Transport Unit (RITU). Electron conversion of transitions previously assigned to Hg-180 through in-beam gamma-ray spectroscopy studies was identified up to the 10(+) -> 8(+) transition and the intensities of the conversion-electron transitions were found to be consistent with the previous multipolarity assignments. Evidence was also found for two highly converted transitions in Hg-180: a 167 keV transition is interpreted as the transition from the newly identified 2(2)(+) state at 601 keV to the 2(1)(+) state at 434 keV, while a 420 keV transition is assigned as the E0 decay from the 0(+) bandhead of the prolate-deformed configuration to the weakly deformed ground state.

Original language	English
Article number	ARTN 034308
Number of pages	4
Journal	Physical Review C
Volume	84
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.84.034308
Publication status	Published - 7 Sept 2011

Keywords

STATES
ISOTOPES
SHAPE COEXISTENCE
HG NUCLEI
ALPHA-DECAY
EXCITATIONS
GAMMA-RAY
REGION
BANDS

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10.1103/PhysRevC.84.034308

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Page, R. D., Andreyev, A. N., Wiseman, D. R., Butler, P. A., Grahn, T., Greenlees, P. T., Herzberg, R. -D., Huyse, M., Jones, G. D., Jones, P. M., Joss, D. T., Julin, R., Juutinen, S., Kankaanpaa, H., Keenan, A., Kettunen, H., Kuusiniemi, P., Leino, M., Muikku, M., ... Van Duppen, P. (2011). In-beam conversion-electron spectroscopy of Hg-180. Physical Review C, 84(3), [ARTN 034308]. https://doi.org/10.1103/PhysRevC.84.034308

@article{9148ca4379c5450cae28249a4e692641,

title = "In-beam conversion-electron spectroscopy of Hg-180",

abstract = "Excited states in Hg-180 were populated using the Sm-147(Ar-36,3n)Hg-180 reaction and studied by in-beam conversion-electron spectroscopy. Conversion electrons emitted at the target position were measured using the Silicon Array for Conversion Electron Detection (SACRED) spectrometer and tagged through the characteristic alpha decays of Hg-180 detected in a position-sensitive silicon strip detector located at the focal plane of the gas-filled recoil separator Recoil Ion Transport Unit (RITU). Electron conversion of transitions previously assigned to Hg-180 through in-beam gamma-ray spectroscopy studies was identified up to the 10(+) -> 8(+) transition and the intensities of the conversion-electron transitions were found to be consistent with the previous multipolarity assignments. Evidence was also found for two highly converted transitions in Hg-180: a 167 keV transition is interpreted as the transition from the newly identified 2(2)(+) state at 601 keV to the 2(1)(+) state at 434 keV, while a 420 keV transition is assigned as the E0 decay from the 0(+) bandhead of the prolate-deformed configuration to the weakly deformed ground state.",

keywords = "STATES, ISOTOPES, SHAPE COEXISTENCE, HG NUCLEI, ALPHA-DECAY, EXCITATIONS, GAMMA-RAY, REGION, BANDS",

author = "Page, {R. D.} and Andreyev, {A. N.} and Wiseman, {D. R.} and Butler, {P. A.} and T. Grahn and Greenlees, {P. T.} and Herzberg, {R. -D.} and M. Huyse and Jones, {G. D.} and Jones, {P. M.} and Joss, {D. T.} and R. Julin and S. Juutinen and H. Kankaanpaa and A. Keenan and H. Kettunen and P. Kuusiniemi and M. Leino and M. Muikku and P. Nieminen and P. Rahkila and Rainovski, {G. I.} and C. Scholey and J. Uusitalo and {Van de Vel}, K. and {Van Duppen}, P.",

year = "2011",

month = sep,

day = "7",

doi = "10.1103/PhysRevC.84.034308",

language = "English",

volume = "84",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

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Page, RD, Andreyev, AN, Wiseman, DR, Butler, PA, Grahn, T, Greenlees, PT, Herzberg, R-D, Huyse, M, Jones, GD, Jones, PM, Joss, DT, Julin, R, Juutinen, S, Kankaanpaa, H, Keenan, A, Kettunen, H, Kuusiniemi, P, Leino, M, Muikku, M, Nieminen, P, Rahkila, P, Rainovski, GI, Scholey, C, Uusitalo, J, Van de Vel, K & Van Duppen, P 2011, 'In-beam conversion-electron spectroscopy of Hg-180', Physical Review C, vol. 84, no. 3, ARTN 034308. https://doi.org/10.1103/PhysRevC.84.034308

TY - JOUR

T1 - In-beam conversion-electron spectroscopy of Hg-180

AU - Page, R. D.

AU - Andreyev, A. N.

AU - Wiseman, D. R.

AU - Butler, P. A.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Herzberg, R. -D.

AU - Huyse, M.

AU - Jones, G. D.

AU - Jones, P. M.

AU - Joss, D. T.

AU - Julin, R.

AU - Juutinen, S.

AU - Kankaanpaa, H.

AU - Keenan, A.

AU - Kettunen, H.

AU - Kuusiniemi, P.

AU - Leino, M.

AU - Muikku, M.

AU - Nieminen, P.

AU - Rahkila, P.

AU - Rainovski, G. I.

AU - Scholey, C.

AU - Uusitalo, J.

AU - Van de Vel, K.

AU - Van Duppen, P.

PY - 2011/9/7

Y1 - 2011/9/7

N2 - Excited states in Hg-180 were populated using the Sm-147(Ar-36,3n)Hg-180 reaction and studied by in-beam conversion-electron spectroscopy. Conversion electrons emitted at the target position were measured using the Silicon Array for Conversion Electron Detection (SACRED) spectrometer and tagged through the characteristic alpha decays of Hg-180 detected in a position-sensitive silicon strip detector located at the focal plane of the gas-filled recoil separator Recoil Ion Transport Unit (RITU). Electron conversion of transitions previously assigned to Hg-180 through in-beam gamma-ray spectroscopy studies was identified up to the 10(+) -> 8(+) transition and the intensities of the conversion-electron transitions were found to be consistent with the previous multipolarity assignments. Evidence was also found for two highly converted transitions in Hg-180: a 167 keV transition is interpreted as the transition from the newly identified 2(2)(+) state at 601 keV to the 2(1)(+) state at 434 keV, while a 420 keV transition is assigned as the E0 decay from the 0(+) bandhead of the prolate-deformed configuration to the weakly deformed ground state.

AB - Excited states in Hg-180 were populated using the Sm-147(Ar-36,3n)Hg-180 reaction and studied by in-beam conversion-electron spectroscopy. Conversion electrons emitted at the target position were measured using the Silicon Array for Conversion Electron Detection (SACRED) spectrometer and tagged through the characteristic alpha decays of Hg-180 detected in a position-sensitive silicon strip detector located at the focal plane of the gas-filled recoil separator Recoil Ion Transport Unit (RITU). Electron conversion of transitions previously assigned to Hg-180 through in-beam gamma-ray spectroscopy studies was identified up to the 10(+) -> 8(+) transition and the intensities of the conversion-electron transitions were found to be consistent with the previous multipolarity assignments. Evidence was also found for two highly converted transitions in Hg-180: a 167 keV transition is interpreted as the transition from the newly identified 2(2)(+) state at 601 keV to the 2(1)(+) state at 434 keV, while a 420 keV transition is assigned as the E0 decay from the 0(+) bandhead of the prolate-deformed configuration to the weakly deformed ground state.

KW - STATES

KW - ISOTOPES

KW - SHAPE COEXISTENCE

KW - HG NUCLEI

KW - ALPHA-DECAY

KW - EXCITATIONS

KW - GAMMA-RAY

KW - REGION

KW - BANDS

UR - http://www.scopus.com/inward/record.url?scp=80052614283&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.84.034308

DO - 10.1103/PhysRevC.84.034308

M3 - Article

SN - 2469-9985

VL - 84

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - ARTN 034308

ER -

In-beam conversion-electron spectroscopy of Hg-180

Abstract

Keywords

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