Electrofission of (sup 239) pu in the energy range 7-12 mev
Autor(a) principal: | |
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Data de Publicação: | 1997 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/104099 |
Resumo: | The electrofission cross section of ²³⁹Pu(e,f) is measured between 7 and 12 MeV. The data are analyzed by means of the virtual photon formalism, assuming that E1, E2 (T=0), and M1 transitions are involved. Using known estimates for the E1 and E2 (T=0) fission strengths, it is deduced an M1 fission strength of 19 ±4μ²N concentrated near the fission barrier (between 5.4 and 5.8 MeV). The levels of the ²³⁹Pu transition nucleus are theoretically obtained; a bunch of positive-parity levels shows up between 5.5 and 5.9 MeV, which might well be associated with the deduced M1 strength, since the E2 strength is negligible in this energy interval. |
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Arruda-Neto, João Dias ToledoYoneama, Maria LuciaDias, Johnny FerrazGarcia, F.S.Reigota, M.A.V.Likhachev, V.P.Guzman, F.Rodriguez, O.Mesa, J.2014-10-03T02:12:16Z19970556-2813http://hdl.handle.net/10183/104099000203448The electrofission cross section of ²³⁹Pu(e,f) is measured between 7 and 12 MeV. The data are analyzed by means of the virtual photon formalism, assuming that E1, E2 (T=0), and M1 transitions are involved. Using known estimates for the E1 and E2 (T=0) fission strengths, it is deduced an M1 fission strength of 19 ±4μ²N concentrated near the fission barrier (between 5.4 and 5.8 MeV). The levels of the ²³⁹Pu transition nucleus are theoretically obtained; a bunch of positive-parity levels shows up between 5.5 and 5.9 MeV, which might well be associated with the deduced M1 strength, since the E2 strength is negligible in this energy interval.application/pdfengPhysical Review. C, Nuclear physics. Woodbury. Vol. 55, no. 5 (May 1997), p. 2471-2491Física nuclearFotonsElectrofission of (sup 239) pu in the energy range 7-12 mevEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000203448.pdf000203448.pdfTexto completo (inglês)application/pdf234466http://www.lume.ufrgs.br/bitstream/10183/104099/1/000203448.pdf8108fb03fffecbbd37681787d33547cbMD51TEXT000203448.pdf.txt000203448.pdf.txtExtracted Texttext/plain52167http://www.lume.ufrgs.br/bitstream/10183/104099/2/000203448.pdf.txt16534d6c1f878f1024fc12187399dd14MD52THUMBNAIL000203448.pdf.jpg000203448.pdf.jpgGenerated Thumbnailimage/jpeg2096http://www.lume.ufrgs.br/bitstream/10183/104099/3/000203448.pdf.jpg843dc31d2d533bd70eb8fa26fdb04e0aMD5310183/1040992021-06-26 04:37:07.78586oai:www.lume.ufrgs.br:10183/104099Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-06-26T07:37:07Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
title |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
spellingShingle |
Electrofission of (sup 239) pu in the energy range 7-12 mev Arruda-Neto, João Dias Toledo Física nuclear Fotons |
title_short |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
title_full |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
title_fullStr |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
title_full_unstemmed |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
title_sort |
Electrofission of (sup 239) pu in the energy range 7-12 mev |
author |
Arruda-Neto, João Dias Toledo |
author_facet |
Arruda-Neto, João Dias Toledo Yoneama, Maria Lucia Dias, Johnny Ferraz Garcia, F.S. Reigota, M.A.V. Likhachev, V.P. Guzman, F. Rodriguez, O. Mesa, J. |
author_role |
author |
author2 |
Yoneama, Maria Lucia Dias, Johnny Ferraz Garcia, F.S. Reigota, M.A.V. Likhachev, V.P. Guzman, F. Rodriguez, O. Mesa, J. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Arruda-Neto, João Dias Toledo Yoneama, Maria Lucia Dias, Johnny Ferraz Garcia, F.S. Reigota, M.A.V. Likhachev, V.P. Guzman, F. Rodriguez, O. Mesa, J. |
dc.subject.por.fl_str_mv |
Física nuclear Fotons |
topic |
Física nuclear Fotons |
description |
The electrofission cross section of ²³⁹Pu(e,f) is measured between 7 and 12 MeV. The data are analyzed by means of the virtual photon formalism, assuming that E1, E2 (T=0), and M1 transitions are involved. Using known estimates for the E1 and E2 (T=0) fission strengths, it is deduced an M1 fission strength of 19 ±4μ²N concentrated near the fission barrier (between 5.4 and 5.8 MeV). The levels of the ²³⁹Pu transition nucleus are theoretically obtained; a bunch of positive-parity levels shows up between 5.5 and 5.9 MeV, which might well be associated with the deduced M1 strength, since the E2 strength is negligible in this energy interval. |
publishDate |
1997 |
dc.date.issued.fl_str_mv |
1997 |
dc.date.accessioned.fl_str_mv |
2014-10-03T02:12:16Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/104099 |
dc.identifier.issn.pt_BR.fl_str_mv |
0556-2813 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000203448 |
identifier_str_mv |
0556-2813 000203448 |
url |
http://hdl.handle.net/10183/104099 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical Review. C, Nuclear physics. Woodbury. Vol. 55, no. 5 (May 1997), p. 2471-2491 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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