Studies of beta-delayed proton decays of N similar or equal to Z nuclei around Sn-100 at the GSI-ISOL facility

GSI ISOL Collaboration; M Kavatsyuk; O Kavatsyuk

doi:10.1016/j.nuclphysa.2004.09.065

Studies of beta-delayed proton decays of N similar or equal to Z nuclei around Sn-100 at the GSI-ISOL facility

GSI ISOL Collaboration, M Kavatsyuk, O Kavatsyuk

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

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Abstract

Beta decays of Ag-94,Ag-96 and Sn-103 nuclei into proton channels have been studied in the recent experiments at the GSI-ISOL facility. New efficient and chemically selective ion sources provided the highest yields of light silver and tin isotopes. Large arrays of germanium gamma-ray and silicon charged-particle detectors, as well as a total absorption spectrometer (TAS) were used to measure beta-proton, proton-gamma, beta-proton-gamma and proton-gamma-gamma spectra. For the decay of Ag-94, we observed high-spin states in Rh-93 populated by proton emission following 0 decay, whose largest spin value (greater than or equal to39/2) yields an experimental proof for the existence of a second high-spin isomer in 94Ag with Igreater than or equal to17. Its beta-decay energy is at least 16.8 MeV, corresponding to an excitation energy greater than or equal to5.5 MeV. For Sn-103, the gamma rays measured in coincidence with beta-delayed protons allowed us to establish the beta-decay properties of this isotope. In particular, a Q(EC) value of 7.5(6) MeV is derived from the intensity ratio of protons that are preceded either by EC or by beta(+) decays and populate the 2+ state in Cd-102.

Original language	English
Pages (from-to)	66C-70C
Number of pages	5
Journal	Nuclear Physics A
Volume	746
DOIs	https://doi.org/10.1016/j.nuclphysa.2004.09.065
Publication status	Published - 27-Dec-2004
Externally published	Yes
Event	6th International Conference on Radioactive Nuclear Beams - Argonne, Israel Duration: 22-Sept-2003 → 26-Sept-2003

Keywords

HIGH-SPIN ISOMERS
GAP ISOMER

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Studies of β-delayed proton decays of N≃Z nuclei around 100Sn at the GSI-ISOL facility
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@article{d44a9eadcdc84214833163ff46d72edc,

title = "Studies of beta-delayed proton decays of N similar or equal to Z nuclei around Sn-100 at the GSI-ISOL facility",

abstract = "Beta decays of Ag-94,Ag-96 and Sn-103 nuclei into proton channels have been studied in the recent experiments at the GSI-ISOL facility. New efficient and chemically selective ion sources provided the highest yields of light silver and tin isotopes. Large arrays of germanium gamma-ray and silicon charged-particle detectors, as well as a total absorption spectrometer (TAS) were used to measure beta-proton, proton-gamma, beta-proton-gamma and proton-gamma-gamma spectra. For the decay of Ag-94, we observed high-spin states in Rh-93 populated by proton emission following 0 decay, whose largest spin value (greater than or equal to39/2) yields an experimental proof for the existence of a second high-spin isomer in 94Ag with Igreater than or equal to17. Its beta-decay energy is at least 16.8 MeV, corresponding to an excitation energy greater than or equal to5.5 MeV. For Sn-103, the gamma rays measured in coincidence with beta-delayed protons allowed us to establish the beta-decay properties of this isotope. In particular, a Q(EC) value of 7.5(6) MeV is derived from the intensity ratio of protons that are preceded either by EC or by beta(+) decays and populate the 2+ state in Cd-102.",

keywords = "HIGH-SPIN ISOMERS, GAP ISOMER",

author = "{GSI ISOL Collaboration} and I. Mukha and L Batist and F Becker and A Blazhev and A Bruchle and J Doring and M Gorska and H Grawe and T Faestermann and C Hoffman and Z Janas and A Jungclaus and M Karny and M Kavatsyuk and O Kavatsyuk and R Kirchner and {La Commara}, M and C Mazzocchi and C Plettner and A Plochocki and E Roeckl and M Romoli and M Schadel and R Schwengner and SL Tabor and M Wiedeking",

year = "2004",

month = dec,

day = "27",

doi = "10.1016/j.nuclphysa.2004.09.065",

language = "English",

volume = "746",

pages = "66C--70C",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "ELSEVIER SCIENCE BV",

note = "6th International Conference on Radioactive Nuclear Beams ; Conference date: 22-09-2003 Through 26-09-2003",

}

TY - JOUR

T1 - Studies of beta-delayed proton decays of N similar or equal to Z nuclei around Sn-100 at the GSI-ISOL facility

AU - GSI ISOL Collaboration

AU - Mukha, I.

AU - Batist, L

AU - Becker, F

AU - Blazhev, A

AU - Bruchle, A

AU - Doring, J

AU - Gorska, M

AU - Grawe, H

AU - Faestermann, T

AU - Hoffman, C

AU - Janas, Z

AU - Jungclaus, A

AU - Karny, M

AU - Kavatsyuk, M

AU - Kavatsyuk, O

AU - Kirchner, R

AU - La Commara, M

AU - Mazzocchi, C

AU - Plettner, C

AU - Plochocki, A

AU - Roeckl, E

AU - Romoli, M

AU - Schadel, M

AU - Schwengner, R

AU - Tabor, SL

AU - Wiedeking, M

PY - 2004/12/27

Y1 - 2004/12/27

N2 - Beta decays of Ag-94,Ag-96 and Sn-103 nuclei into proton channels have been studied in the recent experiments at the GSI-ISOL facility. New efficient and chemically selective ion sources provided the highest yields of light silver and tin isotopes. Large arrays of germanium gamma-ray and silicon charged-particle detectors, as well as a total absorption spectrometer (TAS) were used to measure beta-proton, proton-gamma, beta-proton-gamma and proton-gamma-gamma spectra. For the decay of Ag-94, we observed high-spin states in Rh-93 populated by proton emission following 0 decay, whose largest spin value (greater than or equal to39/2) yields an experimental proof for the existence of a second high-spin isomer in 94Ag with Igreater than or equal to17. Its beta-decay energy is at least 16.8 MeV, corresponding to an excitation energy greater than or equal to5.5 MeV. For Sn-103, the gamma rays measured in coincidence with beta-delayed protons allowed us to establish the beta-decay properties of this isotope. In particular, a Q(EC) value of 7.5(6) MeV is derived from the intensity ratio of protons that are preceded either by EC or by beta(+) decays and populate the 2+ state in Cd-102.

AB - Beta decays of Ag-94,Ag-96 and Sn-103 nuclei into proton channels have been studied in the recent experiments at the GSI-ISOL facility. New efficient and chemically selective ion sources provided the highest yields of light silver and tin isotopes. Large arrays of germanium gamma-ray and silicon charged-particle detectors, as well as a total absorption spectrometer (TAS) were used to measure beta-proton, proton-gamma, beta-proton-gamma and proton-gamma-gamma spectra. For the decay of Ag-94, we observed high-spin states in Rh-93 populated by proton emission following 0 decay, whose largest spin value (greater than or equal to39/2) yields an experimental proof for the existence of a second high-spin isomer in 94Ag with Igreater than or equal to17. Its beta-decay energy is at least 16.8 MeV, corresponding to an excitation energy greater than or equal to5.5 MeV. For Sn-103, the gamma rays measured in coincidence with beta-delayed protons allowed us to establish the beta-decay properties of this isotope. In particular, a Q(EC) value of 7.5(6) MeV is derived from the intensity ratio of protons that are preceded either by EC or by beta(+) decays and populate the 2+ state in Cd-102.

KW - HIGH-SPIN ISOMERS

KW - GAP ISOMER

U2 - 10.1016/j.nuclphysa.2004.09.065

DO - 10.1016/j.nuclphysa.2004.09.065

M3 - Article

SN - 0375-9474

VL - 746

SP - 66C-70C

JO - Nuclear Physics A

JF - Nuclear Physics A

T2 - 6th International Conference on Radioactive Nuclear Beams

Y2 - 22 September 2003 through 26 September 2003

ER -

Studies of beta-delayed proton decays of N similar or equal to Z nuclei around Sn-100 at the GSI-ISOL facility

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Keywords

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