Experimental fission study using multi-nucleon transfer reactions

Katsuhisa Nishio; Kentaro Hirose; Romain Léguillon; Hiroygbri Makii; Riccardo Orlandi; Kazuaki TsGBRada; James Smallcombe; Satoshi Chiba; Yoshihiro Aritomo; Shouya Tanaka; Tsutomu OhtsGBRi; Igor Tsekhanovich; Costel M. Petrache; Andrei Andreyev

doi:10.1051/epjconf/201714604009

Experimental fission study using multi-nucleon transfer reactions

Katsuhisa Nishio, Kentaro Hirose, Romain Léguillon, Hiroygbri Makii, Riccardo Orlandi, Kazuaki TsGBRada, James Smallcombe, Satoshi Chiba, Yoshihiro Aritomo, Shouya Tanaka, Tsutomu OhtsGBRi, Igor Tsekhanovich, Costel M. Petrache, Andrei Andreyev

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	ND 2016: International Conference on Nuclear Data for Science and Technology
Publisher	EDP Sciences
Volume	146
ISBN (Electronic)	9782759890200
DOIs	https://doi.org/10.1051/epjconf/201714604009
Publication status	Published - 13 Sept 2017
Event	2016 International Conference on Nuclear Data for Science and Technology, ND 2016 - Bruges, Belgium Duration: 11 Sept 2016 → 16 Sept 2016

Conference

Conference	2016 International Conference on Nuclear Data for Science and Technology, ND 2016
Country/Territory	Belgium
City	Bruges
Period	11/09/16 → 16/09/16

Access to Document

10.1051/epjconf/201714604009

Cite this

Nishio, K., Hirose, K., Léguillon, R., Makii, H., Orlandi, R., TsGBRada, K., Smallcombe, J., Chiba, S., Aritomo, Y., Tanaka, S., OhtsGBRi, T., Tsekhanovich, I., Petrache, C. M., & Andreyev, A. (2017). Experimental fission study using multi-nucleon transfer reactions. In ND 2016: International Conference on Nuclear Data for Science and Technology (Vol. 146). Article 04009 EDP Sciences. https://doi.org/10.1051/epjconf/201714604009

@inproceedings{11032fd5f8544bb092a024326518b09c,

title = "Experimental fission study using multi-nucleon transfer reactions",

abstract = "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.",

author = "Katsuhisa Nishio and Kentaro Hirose and Romain L{\'e}guillon and Hiroygbri Makii and Riccardo Orlandi and Kazuaki TsGBRada and James Smallcombe and Satoshi Chiba and Yoshihiro Aritomo and Shouya Tanaka and Tsutomu OhtsGBRi and Igor Tsekhanovich and Petrache, {Costel M.} and Andrei Andreyev",

year = "2017",

month = sep,

day = "13",

doi = "10.1051/epjconf/201714604009",

language = "English",

volume = "146",

booktitle = "ND 2016: International Conference on Nuclear Data for Science and Technology",

publisher = "EDP Sciences",

address = "France",

note = "2016 International Conference on Nuclear Data for Science and Technology, ND 2016 ; Conference date: 11-09-2016 Through 16-09-2016",

}

Nishio, K, Hirose, K, Léguillon, R, Makii, H, Orlandi, R, TsGBRada, K, Smallcombe, J, Chiba, S, Aritomo, Y, Tanaka, S, OhtsGBRi, T, Tsekhanovich, I, Petrache, CM & Andreyev, A 2017, Experimental fission study using multi-nucleon transfer reactions. in ND 2016: International Conference on Nuclear Data for Science and Technology. vol. 146, 04009, EDP Sciences, 2016 International Conference on Nuclear Data for Science and Technology, ND 2016, Bruges, Belgium, 11/09/16. https://doi.org/10.1051/epjconf/201714604009

TY - GEN

T1 - Experimental fission study using multi-nucleon transfer reactions

AU - Nishio, Katsuhisa

AU - Hirose, Kentaro

AU - Léguillon, Romain

AU - Makii, Hiroygbri

AU - Orlandi, Riccardo

AU - TsGBRada, Kazuaki

AU - Smallcombe, James

AU - Chiba, Satoshi

AU - Aritomo, Yoshihiro

AU - Tanaka, Shouya

AU - OhtsGBRi, Tsutomu

AU - Tsekhanovich, Igor

AU - Petrache, Costel M.

AU - Andreyev, Andrei

PY - 2017/9/13

Y1 - 2017/9/13

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85030472613&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201714604009

DO - 10.1051/epjconf/201714604009

M3 - Conference contribution

AN - SCOPUS:85030472613

VL - 146

BT - ND 2016: International Conference on Nuclear Data for Science and Technology

PB - EDP Sciences

T2 - 2016 International Conference on Nuclear Data for Science and Technology, ND 2016

Y2 - 11 September 2016 through 16 September 2016

ER -

Experimental fission study using multi-nucleon transfer reactions

Abstract

Conference

Access to Document

Other files and links

Cite this