Lifetime measurement of the first excited state of Be-7 using the Doppler shift attenuation method applied to an exothermic nuclear reaction
DC Field | Value | Language |
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dc.contributor.author | Kim, JH | - |
dc.contributor.author | Lee, CS | - |
dc.contributor.author | Kwon, YK | - |
dc.contributor.author | Kim, JY | - |
dc.contributor.author | Huh, JY | - |
dc.contributor.author | Moon, JY | - |
dc.contributor.author | Lee, JH | - |
dc.contributor.author | Kim, JC | - |
dc.contributor.author | Youn, M | - |
dc.contributor.author | Kim, IC | - |
dc.contributor.author | Park, JH | - |
dc.contributor.author | Kim, JS | - |
dc.contributor.author | Kim, DK | - |
dc.contributor.author | Hahn, KI | - |
dc.date.available | 2019-05-30T09:36:53Z | - |
dc.date.issued | 2002-05 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/25120 | - |
dc.description.abstract | The lifetime of the first excited state of Be-7 (E-x = 0.429 MeV; J(pi) = 1/2(-)) was measured by mean of the Doppler shift attenuation method. An exothermic B-10(rho,alphagamma) Be-7 nuclear reaction was used to populate 7 Be using 2-MeV protons delivered from the Tandetron accelerator at Seoul National University. Two Compton-suppressed germanium gamma-ray detectors were used to reduce the Compton background around the 429-keV photopeak. A Monte Carlo simulation code specific to the present exothermic reaction kinematics was developed in order to predict the velocity history of a recoiled nucleus as a function of time, The mean lifetime of the first excited state of Be-7 has been deduced to be 169+/-51 fs. Despite the nature of the exothermic reaction, which makes assessment of the velocity distribution difficult especially for a backward recoiled nucleus, our experimental value is in fair agreement with the adopted value of 192+/-25 fs, obtained from the endothermic Li-7(rho,ngamma) Be-7 nuclear reaction. | - |
dc.format.extent | 5 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.title | Lifetime measurement of the first excited state of Be-7 using the Doppler shift attenuation method applied to an exothermic nuclear reaction | - |
dc.type | Article | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.40, no.5, pp 802 - 806 | - |
dc.identifier.kciid | ART001196010 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000175622700005 | - |
dc.identifier.scopusid | 2-s2.0-0036015124 | - |
dc.citation.endPage | 806 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 802 | - |
dc.citation.title | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.volume | 40 | - |
dc.type.docType | Article | - |
dc.publisher.location | 대한민국 | - |
dc.subject.keywordAuthor | lifetime | - |
dc.subject.keywordAuthor | Doppler shift attenuation method | - |
dc.subject.keywordAuthor | Compton-suppressed germanium gamma-ray detectors | - |
dc.subject.keywordAuthor | exothermic | - |
dc.subject.keywordPlus | BEAM | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kciCandi | - |
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