Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility
Solenogam is a recoil spectrometer designed and constructed for use at the Australian National University (ANU) Heavy-Ion Accelerator Facility (HIAF). The design enables the study of nuclear excitations populated by the decay of long-lived states such as isomers and radioactive ground states. Soleno...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2016-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/201612304007 |
| _version_ | 1818726120577564672 |
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| author | Gerathy M. S. M. Reed M. W. Lane G. J. Kibédi T. Hota S. S. Stuchbery A. E. |
| author_facet | Gerathy M. S. M. Reed M. W. Lane G. J. Kibédi T. Hota S. S. Stuchbery A. E. |
| author_sort | Gerathy M. S. M. |
| collection | DOAJ |
| description | Solenogam is a recoil spectrometer designed and constructed for use at the Australian National University (ANU) Heavy-Ion Accelerator Facility (HIAF). The design enables the study of nuclear excitations populated by the decay of long-lived states such as isomers and radioactive ground states. Solenogam is comprised of high-sensitivity γ-ray and electron detector arrays coupled to a new 8-T solenoid. While the installation of the 8-T solenoid proceeds, off-line measurements have been made to characterise Solenogam’s performance. Gamma-electron coincidences in the electron capture decay of 182Re into 182W were used to investigate conversion coeffcients and γ-e– angular correlations. The measured conversion coeffcients show good agreement with theoretical calculations and have been used to extract E0/E2 mixing ratios for a number of J → J transitions. The angular correlations measured by the array are in qualitative agreement with theoretical calculations. However, the magnitudes of the correlations are attenuated by approximately 40% for reasons unknown at present. These results are the first full use of the Solenogam system for γ-e– coincidence measurements and have proven that the system is capable of highly-sensitive internal conversion analysis of complex decays. |
| first_indexed | 2024-12-17T21:53:09Z |
| format | Article |
| id | doaj.art-e87f1cc16c7c449b9583c8cd2d82367e |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T21:53:09Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-e87f1cc16c7c449b9583c8cd2d82367e2022-12-21T21:31:12ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011230400710.1051/epjconf/201612304007epjconf_hias2016_04007Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator FacilityGerathy M. S. M.0Reed M. W.1Lane G. J.2Kibédi T.3Hota S. S.4Stuchbery A. E.5Department of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversitySolenogam is a recoil spectrometer designed and constructed for use at the Australian National University (ANU) Heavy-Ion Accelerator Facility (HIAF). The design enables the study of nuclear excitations populated by the decay of long-lived states such as isomers and radioactive ground states. Solenogam is comprised of high-sensitivity γ-ray and electron detector arrays coupled to a new 8-T solenoid. While the installation of the 8-T solenoid proceeds, off-line measurements have been made to characterise Solenogam’s performance. Gamma-electron coincidences in the electron capture decay of 182Re into 182W were used to investigate conversion coeffcients and γ-e– angular correlations. The measured conversion coeffcients show good agreement with theoretical calculations and have been used to extract E0/E2 mixing ratios for a number of J → J transitions. The angular correlations measured by the array are in qualitative agreement with theoretical calculations. However, the magnitudes of the correlations are attenuated by approximately 40% for reasons unknown at present. These results are the first full use of the Solenogam system for γ-e– coincidence measurements and have proven that the system is capable of highly-sensitive internal conversion analysis of complex decays.http://dx.doi.org/10.1051/epjconf/201612304007 |
| spellingShingle | Gerathy M. S. M. Reed M. W. Lane G. J. Kibédi T. Hota S. S. Stuchbery A. E. Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility EPJ Web of Conferences |
| title | Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility |
| title_full | Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility |
| title_fullStr | Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility |
| title_full_unstemmed | Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility |
| title_short | Decay spectroscopy with Solenogam at the ANU Heavy Ion Accelerator Facility |
| title_sort | decay spectroscopy with solenogam at the anu heavy ion accelerator facility |
| url | http://dx.doi.org/10.1051/epjconf/201612304007 |
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