Experimental fission study using multi-nucleon transfer reactions
It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+...
Ausführliche Beschreibung
Autor*in: |
Nishio Katsuhisa [verfasserIn] Hirose Kentaro [verfasserIn] Léguillon Romain [verfasserIn] Makii Hiroyuki [verfasserIn] Orlandi Riccardo [verfasserIn] Tsukada Kazuaki [verfasserIn] Smallcombe James [verfasserIn] Chiba Satoshi [verfasserIn] Aritomo Yoshihiro [verfasserIn] Tanaka Shouya [verfasserIn] Ohtsuki Tsutomu [verfasserIn] Tsekhanovich Igor [verfasserIn] Petrache Costel M. [verfasserIn] Andreyev Andrei [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2017 |
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Übergeordnetes Werk: |
In: EPJ Web of Conferences - EDP Sciences, 2010, 146, p 04009(2017) |
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Übergeordnetes Werk: |
volume:146, p 04009 ; year:2017 |
Links: |
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DOI / URN: |
10.1051/epjconf/201714604009 |
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Katalog-ID: |
DOAJ056023537 |
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520 | |a It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. | ||
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700 | 0 | |a Orlandi Riccardo |e verfasserin |4 aut | |
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10.1051/epjconf/201714604009 doi (DE-627)DOAJ056023537 (DE-599)DOAJ948c38b4f7cb4af4b9b437dcce636929 DE-627 ger DE-627 rakwb eng QC1-999 Nishio Katsuhisa verfasserin aut Experimental fission study using multi-nucleon transfer reactions 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. Physics Hirose Kentaro verfasserin aut Léguillon Romain verfasserin aut Makii Hiroyuki verfasserin aut Orlandi Riccardo verfasserin aut Tsukada Kazuaki verfasserin aut Smallcombe James verfasserin aut Chiba Satoshi verfasserin aut Aritomo Yoshihiro verfasserin aut Tanaka Shouya verfasserin aut Ohtsuki Tsutomu verfasserin aut Tsekhanovich Igor verfasserin aut Petrache Costel M. verfasserin aut Andreyev Andrei verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 146, p 04009(2017) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:146, p 04009 year:2017 https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/article/948c38b4f7cb4af4b9b437dcce636929 kostenfrei https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 146, p 04009 2017 |
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10.1051/epjconf/201714604009 doi (DE-627)DOAJ056023537 (DE-599)DOAJ948c38b4f7cb4af4b9b437dcce636929 DE-627 ger DE-627 rakwb eng QC1-999 Nishio Katsuhisa verfasserin aut Experimental fission study using multi-nucleon transfer reactions 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. Physics Hirose Kentaro verfasserin aut Léguillon Romain verfasserin aut Makii Hiroyuki verfasserin aut Orlandi Riccardo verfasserin aut Tsukada Kazuaki verfasserin aut Smallcombe James verfasserin aut Chiba Satoshi verfasserin aut Aritomo Yoshihiro verfasserin aut Tanaka Shouya verfasserin aut Ohtsuki Tsutomu verfasserin aut Tsekhanovich Igor verfasserin aut Petrache Costel M. verfasserin aut Andreyev Andrei verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 146, p 04009(2017) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:146, p 04009 year:2017 https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/article/948c38b4f7cb4af4b9b437dcce636929 kostenfrei https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 146, p 04009 2017 |
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10.1051/epjconf/201714604009 doi (DE-627)DOAJ056023537 (DE-599)DOAJ948c38b4f7cb4af4b9b437dcce636929 DE-627 ger DE-627 rakwb eng QC1-999 Nishio Katsuhisa verfasserin aut Experimental fission study using multi-nucleon transfer reactions 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. Physics Hirose Kentaro verfasserin aut Léguillon Romain verfasserin aut Makii Hiroyuki verfasserin aut Orlandi Riccardo verfasserin aut Tsukada Kazuaki verfasserin aut Smallcombe James verfasserin aut Chiba Satoshi verfasserin aut Aritomo Yoshihiro verfasserin aut Tanaka Shouya verfasserin aut Ohtsuki Tsutomu verfasserin aut Tsekhanovich Igor verfasserin aut Petrache Costel M. verfasserin aut Andreyev Andrei verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 146, p 04009(2017) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:146, p 04009 year:2017 https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/article/948c38b4f7cb4af4b9b437dcce636929 kostenfrei https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 146, p 04009 2017 |
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10.1051/epjconf/201714604009 doi (DE-627)DOAJ056023537 (DE-599)DOAJ948c38b4f7cb4af4b9b437dcce636929 DE-627 ger DE-627 rakwb eng QC1-999 Nishio Katsuhisa verfasserin aut Experimental fission study using multi-nucleon transfer reactions 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. Physics Hirose Kentaro verfasserin aut Léguillon Romain verfasserin aut Makii Hiroyuki verfasserin aut Orlandi Riccardo verfasserin aut Tsukada Kazuaki verfasserin aut Smallcombe James verfasserin aut Chiba Satoshi verfasserin aut Aritomo Yoshihiro verfasserin aut Tanaka Shouya verfasserin aut Ohtsuki Tsutomu verfasserin aut Tsekhanovich Igor verfasserin aut Petrache Costel M. verfasserin aut Andreyev Andrei verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 146, p 04009(2017) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:146, p 04009 year:2017 https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/article/948c38b4f7cb4af4b9b437dcce636929 kostenfrei https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 146, p 04009 2017 |
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10.1051/epjconf/201714604009 doi (DE-627)DOAJ056023537 (DE-599)DOAJ948c38b4f7cb4af4b9b437dcce636929 DE-627 ger DE-627 rakwb eng QC1-999 Nishio Katsuhisa verfasserin aut Experimental fission study using multi-nucleon transfer reactions 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. Physics Hirose Kentaro verfasserin aut Léguillon Romain verfasserin aut Makii Hiroyuki verfasserin aut Orlandi Riccardo verfasserin aut Tsukada Kazuaki verfasserin aut Smallcombe James verfasserin aut Chiba Satoshi verfasserin aut Aritomo Yoshihiro verfasserin aut Tanaka Shouya verfasserin aut Ohtsuki Tsutomu verfasserin aut Tsekhanovich Igor verfasserin aut Petrache Costel M. verfasserin aut Andreyev Andrei verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 146, p 04009(2017) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:146, p 04009 year:2017 https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/article/948c38b4f7cb4af4b9b437dcce636929 kostenfrei https://doi.org/10.1051/epjconf/201714604009 kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 146, p 04009 2017 |
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Nishio Katsuhisa @@aut@@ Hirose Kentaro @@aut@@ Léguillon Romain @@aut@@ Makii Hiroyuki @@aut@@ Orlandi Riccardo @@aut@@ Tsukada Kazuaki @@aut@@ Smallcombe James @@aut@@ Chiba Satoshi @@aut@@ Aritomo Yoshihiro @@aut@@ Tanaka Shouya @@aut@@ Ohtsuki Tsutomu @@aut@@ Tsekhanovich Igor @@aut@@ Petrache Costel M. @@aut@@ Andreyev Andrei @@aut@@ |
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It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. |
abstractGer |
It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. |
abstract_unstemmed |
It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons. |
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In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. 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