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Angular distribution in the neutron-induced fission of actinides

González-Romero; Cortés-Giraldo, M.A.; Leong, L. S.; Leong, L.S.; Tassan-Got, L.; Tassan-Got, L.; Tarrio, D.; Tarrio, D.; Audouin, L.; Audouin, L.; Paradela, C.; Paradela, C.; Duran, I.; Duran, I.; Le Naour, C.; Le Naour, C.; Altstadt, S.; Altstadt, S.; Andrzejewsky, J.; Andrzejewsky, J.; Barbagallo, M.; Barbagallo, M.; Bécares, V.; Bécares, V.; Bečvář, F.; Bečvář, F.; Belloni, F.; Belloni, F.; Berthoumieux, E.; Berthoumieux, E.; Billowes, J.; Billowes, J.; Boccone, V.; Boccone, V.; Bosnar, D.; Bosnar, D.; Brugger, M.; Brugger, M.; Calvino, F.; Calvino, F.; Calviani, M.; Calviani, M.; Cano-Ott, D.; Cano-Ott, D.; Carrapiço, C.; Carrapiço, C.; Cerutti, F.; Cerutti, F.; Chiaveri, E.; Chiaveri, E.; Chin, M.; Chin, M.; Colonna, N.; Colonna, N.; Cortés, G.; Cortés, G.; Cortés-Giraldo, M. A.; Diakaki, M.; Diakaki, M.; Domingo-Pardo, C.; Domingo-Pardo, C.; Dressler, R.; Dressler, R.; Eleftheriadis, C.; Dzysiuk, N.; Eleftheriadis, C.; Dzysiuk, N.; Ferrari, A.; Fraval, K.; Fraval, K.; Ferrari, A.; Ganesan, S.; Giubrone, G.; García, A. R.; Ganesan, S.; Giubrone, G.; Gonçalves, I.F.; Jericha, E.; Gómez-Hornillos, M. B.; Gurusamy, P.; Gonçalves, I. F.; Gunsing, F.; Griesmayer, E.; Guerrero, C.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Korschinek, G.; Gurusamy, P.; Kokkoris, M.; Jenkins, D. G.; Koehler, P.; Kivel, N.; Jericha, E.; Kadi, E.; Karadimos, D.; Käppeler, F.; Käppeler, F.; Karadimos, D.; Kadi, E.; Kivel, N.; Manousos, A.; Koehler, P.; Losito, R.; Leeb, H.; Kokkoris, M.; Korschinek, G.; Lederer, C.; Kroll, J.; Langer, C.; Krtička, M.; Krtička, M.; Langer, C.; Kroll, J.; Lederer, C.; Mendoza, E.; Leeb, H.; Mengon, A.; Meaze, M.; Losito, R.; Manousos, A.; Mastromarco, M.; Martínez, T.; Marganiec, J.; Massimi, C.; Massimi, C.; Marganiec, J.; Martínez, T.; Praena, J.; Mastinu, P. F.; Plompen, A.; Mastromarco, M.; Pignatari, M.; Meaze, M.; Perkowski, J.; Mengon, A.; Mendoza, E.; Pavlik, A.; Milazzo, P. M.; Mondelaers, W.; Mirea, M.; Mingrone, T.; Mirea, M.; Mingrone, T.; Schumann, D.; Mondelaers, W.; Schmidt, S.; Pavlik, A.; Perkowski, J.; Schillebeeckx, P.; Sarmento, R.; Pignatari, M.; Rubbia, C.; Plompen, A.; Praena, J.; Roman, F.; Quesada, J. M.; Riego, A.; Reifhart, R.; Rauscher, T.; Rauscher, T.; Reifhart, R.; Vlastou, V.; Riego, A.; Vlachoudis, V.; Roman, F.; Versaci, R.; Rubbia, C.; Ventura, A.; Sarmento, R.; Schillebeeckx, P.; Vaz, P.; Schmidt, S.; Variale, V.; Vannini, G.; Schumann, D.; Taín, J. L.; Valenta, S.; Tagliente, G.; Tsinganis, A.; Tsinganis, A.; Tagliente, G.; Vermeulen, M.J.; Valenta, S.; Vannini, G.; Taín, J.L.; Variale, V.; Quesada, J.M.; Milazzo, P.M.; Vaz, P.; Mastinu, P.F.; Ventura, A.; Versaci, R.; Jenkins, D.G.; Vermeulen, M. J.; Gómez-Hornillos, M.B.; Vlachoudis, V.; García, A.R.; González, Romero; Vlastou, V.; Wallner, A.; Ware, T.; Weigand, M.; Weiß, C.; Wright, T.; Zǔgec

Authors

González-Romero

M.A. Cortés-Giraldo

L. S. Leong

L.S. Leong

L. Tassan-Got

L. Tassan-Got

D. Tarrio

D. Tarrio

L. Audouin

L. Audouin

C. Paradela

C. Paradela

I. Duran

I. Duran

C. Le Naour

C. Le Naour

S. Altstadt

S. Altstadt

J. Andrzejewsky

J. Andrzejewsky

M. Barbagallo

M. Barbagallo

V. Bécares

V. Bécares

F. Bečvář

F. Bečvář

F. Belloni

F. Belloni

E. Berthoumieux

E. Berthoumieux

J. Billowes

J. Billowes

V. Boccone

V. Boccone

D. Bosnar

D. Bosnar

M. Brugger

M. Brugger

F. Calvino

F. Calvino

M. Calviani

M. Calviani

D. Cano-Ott

D. Cano-Ott

C. Carrapiço

C. Carrapiço

F. Cerutti

F. Cerutti

E. Chiaveri

E. Chiaveri

M. Chin

M. Chin

N. Colonna

N. Colonna

G. Cortés

G. Cortés

M. A. Cortés-Giraldo

M. Diakaki

M. Diakaki

C. Domingo-Pardo

C. Domingo-Pardo

R. Dressler

R. Dressler

C. Eleftheriadis

N. Dzysiuk

C. Eleftheriadis

N. Dzysiuk

A. Ferrari

K. Fraval

K. Fraval

A. Ferrari

S. Ganesan

G. Giubrone

A. R. García

S. Ganesan

G. Giubrone

I.F. Gonçalves

E. Jericha

M. B. Gómez-Hornillos

P. Gurusamy

I. F. Gonçalves

F. Gunsing

E. Griesmayer

C. Guerrero

E. Griesmayer

C. Guerrero

F. Gunsing

G. Korschinek

P. Gurusamy

M. Kokkoris

D. G. Jenkins

P. Koehler

N. Kivel

E. Jericha

E. Kadi

D. Karadimos

F. Käppeler

F. Käppeler

D. Karadimos

E. Kadi

N. Kivel

A. Manousos

P. Koehler

R. Losito

H. Leeb

M. Kokkoris

G. Korschinek

C. Lederer

J. Kroll

C. Langer

M. Krtička

M. Krtička

C. Langer

J. Kroll

C. Lederer

E. Mendoza

H. Leeb

A. Mengon

M. Meaze

R. Losito

A. Manousos

M. Mastromarco

T. Martínez

J. Marganiec

C. Massimi

C. Massimi

J. Marganiec

T. Martínez

J. Praena

P. F. Mastinu

A. Plompen

M. Mastromarco

M. Meaze

J. Perkowski

A. Mengon

E. Mendoza

A. Pavlik

P. M. Milazzo

W. Mondelaers

M. Mirea

T. Mingrone

M. Mirea

T. Mingrone

D. Schumann

W. Mondelaers

S. Schmidt

A. Pavlik

J. Perkowski

P. Schillebeeckx

R. Sarmento

C. Rubbia

A. Plompen

J. Praena

F. Roman

J. M. Quesada

A. Riego

R. Reifhart

T. Rauscher

T. Rauscher

R. Reifhart

V. Vlastou

A. Riego

V. Vlachoudis

F. Roman

R. Versaci

C. Rubbia

A. Ventura

R. Sarmento

P. Schillebeeckx

P. Vaz

S. Schmidt

V. Variale

G. Vannini

D. Schumann

J. L. Taín

S. Valenta

G. Tagliente

A. Tsinganis

A. Tsinganis

G. Tagliente

M.J. Vermeulen

S. Valenta

G. Vannini

J.L. Taín

V. Variale

J.M. Quesada

P.M. Milazzo

P. Vaz

P.F. Mastinu

A. Ventura

R. Versaci

D.G. Jenkins

M. J. Vermeulen

M.B. Gómez-Hornillos

V. Vlachoudis

A.R. García

Romero González

V. Vlastou

A. Wallner

T. Ware

M. Weigand

C. Weiß

T. Wright

Zǔgec



Contributors

A. Chatillon
Editor

F. Farget
Editor

H. Faust
Editor

G. Fioni
Editor

D. Goutte
Editor

H. Goutte
Editor

Abstract

Above 1 MeV of incident neutron energy the fission fragment angular distribution (FFAD) has generally a strong anisotropic behavior due to the combination of the incident orbital momentum and the intrinsic spin of the fissioning nucleus. This effect has to be taken into account for the efficiency estimation of devices used for fission cross section measurements. In addition it bears information on the spin deposition mechanism and on the structure of transitional states. We designed and constructed a detection device, based on Parallel Plate Avalanche Counters (PPAC), for measuring the fission fragment angular distributions of several isotopes, in particular 232 Th. The measurement has been performed at n-TOF at CERN taking advantage of the very broad energy spectrum of the neutron beam. Fission events were recognized by back to back detection in coincidence in two position-sensitive detectors surrounding the targets. The detection efficiency, depending mostly on the stopping of fission fragments in backings and electrodes, has been computed with a Geant4 simulation and validated by the comparison to the measured case of 235 U below 3 keV where the emission is isotropic. In the case of 232 Th, the result is in good agreement with previous data below 10 MeV, with a good reproduction of the structures associated to vibrational states and the opening of second chance fission. In the 14 MeV region our data are much more accurate than previous ones which are broadly scattered. © Owned by the authors, published by EDP Sciences, 2013.

Journal Article Type Article
Publication Date Dec 1, 2013
Journal EPJ Web of Conferences
Print ISSN 2100-014X
Electronic ISSN 2100-014X
Publisher EDP Sciences
Peer Reviewed Peer Reviewed
Volume 62
Article Number 08003
Pages 08003
ISBN 9782759811236
APA6 Citation Leong, L., Tassan-Got, L., Tarrio, D., Audouin, L., Paradela, C., Duran, I., …González, R. (2013). Angular distribution in the neutron-induced fission of actinides. EPJ Web of Conferences, 62, 08003. https://doi.org/10.1051/epjconf/20136208003
DOI https://doi.org/10.1051/epjconf/20136208003
Publisher URL https://www.epj-conferences.org/articles/epjconf/abs/2013/23/epjconf_fission2013_08003/epjconf_fission2013_08003.html
Copyright Statement © Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Copyright Statement
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.





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