{"id":{"repo_id":"zulu","oai_identifier":"oai:uzspace.unizulu.ac.za:10530/1838"},"canonical_url":"https://search.dev.ndltd.org/etd/zulu/oai:uzspace.unizulu.ac.za:10530/1838","repository":{"repo_id":"zulu","name":"University of Zululand","base_url":"https://uzspace.unizulu.ac.za/server/oai/request"},"display":{"title":"Determination of the Spectroscopic Quadrupole Moment of 40Ar","abstract":"Coulomb excitation reorientation e ects measurement was performed at the AFRODITE vault of iThemba LABS to determine the Qs(2+1 ) of 40Ar. A beam of 40Ar at a laboratory energy of 134.94 MeV was Coulomb excited on a 194Pt target at a safe distance between nuclear surfaces of 6.5 fm. The backward scattered 40Ar particles were detected by an S3-CD double sided silicon detector at a distance of 30 mm with an angular range of 130 to 159 . Eight HPGe clover detector array ( ve at 90 and three at 135 to the beam axis) was employed to detect the de-excited -ray energy emitted by the 40Ar particles. The 40Ar particles and their corresponding -rays were collected in coincidence and stored. MTsort MIDAS was used in conjunction with an o ine sorting code to sort the coincidence data. Coulomb excitation analytical code, GOSIA, was used to extract the diagonal matrix element, h2+1 kE2k2+1 i = 0:00(4) eb. From the relation, h2+1 kE2k2+1 i = Qs 0:75793 , the Qs(2+1 ) was determined as +0:00(3) eb. This result indicates a spherical shape for 40Ar at the 2+1 state.","abstract_html":"Coulomb excitation reorientation e ects measurement was performed at the AFRODITE vault of iThemba LABS to determine the Qs(2+1 ) of 40Ar. A beam of 40Ar at a laboratory energy of 134.94 MeV was Coulomb excited on a 194Pt target at a safe distance between nuclear surfaces of 6.5 fm. The backward scattered 40Ar particles were detected by an S3-CD double sided silicon detector at a distance of 30 mm with an angular range of 130 to 159 . Eight HPGe clover detector array ( ve at 90 and three at 135 to the beam axis) was employed to detect the de-excited -ray energy emitted by the 40Ar particles. The 40Ar particles and their corresponding -rays were collected in coincidence and stored. MTsort MIDAS was used in conjunction with an o ine sorting code to sort the coincidence data. Coulomb excitation analytical code, GOSIA, was used to extract the diagonal matrix element, h2+1 kE2k2+1 i = 0:00(4) eb. From the relation, h2+1 kE2k2+1 i = Qs 0:75793 , the Qs(2+1 ) was determined as +0:00(3) eb. This result indicates a spherical shape for 40Ar at the 2+1 state.","abstract_has_math":false,"creators":["Akakpo, Elijah Hornam"],"institution":"University of Zululand","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Ntshangase, S.S.","Orce, J. N."],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019","date_published":"2019","updated_at":"2026-07-24T06:16:58Z","subjects":["Spectroscopic Quadrupole Moment","40Ar"],"languages":[],"rights":[],"rights_urls":["https://devspace.unizulu.ac.za/bitstreams/e53c5f61-9a77-4932-bb6a-8ef01d17ad1c/download"],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Ntshangase, S.S.","Orce, J. 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A beam of 40Ar at a laboratory energy of 134.94 MeV was Coulomb excited on a 194Pt target at a safe distance between nuclear surfaces of 6.5 fm. The backward scattered 40Ar particles were detected by an S3-CD double sided silicon detector at a distance of 30 mm with an angular range of 130 to 159 . Eight HPGe clover detector array ( ve at 90 and three at 135 to the beam axis) was employed to detect the de-excited -ray energy emitted by the 40Ar particles. The 40Ar particles and their corresponding -rays were collected in coincidence and stored. MTsort MIDAS was used in conjunction with an o ine sorting code to sort the coincidence data. Coulomb excitation analytical code, GOSIA, was used to extract the diagonal matrix element, h2+1 kE2k2+1 i = 0:00(4) eb. From the relation, h2+1 kE2k2+1 i = Qs 0:75793 , the Qs(2+1 ) was determined as +0:00(3) eb. This result indicates a spherical shape for 40Ar at the 2+1 state."]},{"key":"dc:format.checksum.md5","label":"Dc Format Checksum Md5","values":["313c2d6de27a4717b48b60447dc121e8","8a4605be74aa9ea9d79846c1fba20a33","06d7c996ca6687572ce802138fc9dd16"]},{"key":"dc:title","label":"Title","values":["Determination of the Spectroscopic Quadrupole Moment of 40Ar"]}]}],"canonical_facts":{"dc:contributor.advisor":["Ntshangase, S.S.","Orce, J. N."],"dc:creator":["Akakpo, Elijah Hornam"],"dc:date.issued":["2019"],"dc:description.abstract":["Coulomb excitation reorientation e ects measurement was performed at the AFRODITE vault of iThemba LABS to determine the Qs(2+1 ) of 40Ar. A beam of 40Ar at a laboratory energy of 134.94 MeV was Coulomb excited on a 194Pt target at a safe distance between nuclear surfaces of 6.5 fm. The backward scattered 40Ar particles were detected by an S3-CD double sided silicon detector at a distance of 30 mm with an angular range of 130 to 159 . Eight HPGe clover detector array ( ve at 90 and three at 135 to the beam axis) was employed to detect the de-excited -ray energy emitted by the 40Ar particles. The 40Ar particles and their corresponding -rays were collected in coincidence and stored. MTsort MIDAS was used in conjunction with an o ine sorting code to sort the coincidence data. Coulomb excitation analytical code, GOSIA, was used to extract the diagonal matrix element, h2+1 kE2k2+1 i = 0:00(4) eb. From the relation, h2+1 kE2k2+1 i = Qs 0:75793 , the Qs(2+1 ) was determined as +0:00(3) eb. This result indicates a spherical shape for 40Ar at the 2+1 state."],"dc:format.checksum.md5":["313c2d6de27a4717b48b60447dc121e8","8a4605be74aa9ea9d79846c1fba20a33","06d7c996ca6687572ce802138fc9dd16"],"dc:identifier.uri":["https://devspace.unizulu.ac.za/bitstreams/84cdb1b8-29e0-4f82-a521-a2481c3d429c/download"],"dc:publisher.institution":["University of Zululand"],"dc:relation.isreferencedby":["http://hdl.handle.net/10530/1838"],"dc:rights":["https://devspace.unizulu.ac.za/bitstreams/e53c5f61-9a77-4932-bb6a-8ef01d17ad1c/download"],"dc:subject":["Spectroscopic Quadrupole Moment","40Ar"],"dc:title":["Determination of the Spectroscopic Quadrupole Moment of 40Ar"],"dc:type":["Thesis"]},"updated_at":"2026-07-24T06:16:58Z"}