High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV

M. Mastromarco; S. Amaducci; N. Colonna; P. Finocchiaro; L. Cosentino; M. Barbagallo; O. Aberle; J. Andrzejewski; L. Audouin; M. Bacak; J. Balibrea; F. Bečvář; E. Berthoumieux; J. Billowes; D. Bosnar; A. Brown; M. Caamaño; F. Calviño; M. Calviani; D. Cano-Ott; R. Cardella; A. Casanovas; F. Cerutti; Y. H. Chen; E. Chiaveri; G. Cortés; M. A. Cortés-Giraldo; L. A. Damone; M. Diakaki; C. Domingo-Pardo; D. Diacono; R. Dressler; E. Dupont; I. Durán; B. Fernández-Domínguez; A. Ferrari; P. Ferreira; V. Furman; K. Göbel; A. R. García; A. Gawlik; S. Gilardoni; T. Glodariu; I. F. Gonçalves; E. González-Romero; E. Griesmayer; C. Guerrero; F. Gunsing; H. Harada; S. Heinitz; J. Heyse; D. G. Jenkins; E. Jericha; F. Käppeler; Y. Kadi; A. Kalamara; P. Kavrigin; A. Kimura; N. Kivel; I. Knapova; M. Kokkoris; M. Krtička; D. Kurtulgil; E. Leal-Cidoncha; C. Lederer; H. Leeb; J. Lerendegui-Marco; S. Lo Meo; S. J. Lonsdale; D. Macina; A. Manna; J. Marganiec; T. Martínez; A. Masi; C. Massimi; P. Mastinu; E. A. Maugeri; A. Mazzone; E. Mendoza; A. Mengoni; P. M. Milazzo; F. Mingrone; A. Musumarra; A. Negret; R. Nolte; A. Oprea; N. Patronis; A. Pavlik; J. Perkowski; I. Porras; J. Praena; J. M. Quesada; D. Radeck; T. Rauscher; R. Reifarth; C. Rubbia; J. A. Ryan; M. Sabaté-Gilarte; A. Saxena; P. Schillebeeckx; D. Schumann; PV Sedyshev; A. G. Smith; N. V. Sosnin; A. Stamatopoulos; G. Tagliente; J. L. Tain; A. Tarifeño-Saldivia; L. Tassan-Got; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; V. Vlachoudis; R. Vlastou; A. Wallner; S. Warren; C. Weiss; P. J. Woods; T. Wright; P. Žugec

doi:10.1140/epja/s10050-022-00779-7

High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV

M. Mastromarco, S. Amaducci, N. Colonna, P. Finocchiaro, L. Cosentino, M. Barbagallo, O. Aberle, J. Andrzejewski, L. Audouin, M. Bacak, J. Balibrea, F. Bečvář, E. Berthoumieux, J. Billowes, D. Bosnar, A. Brown, M. Caamaño, F. Calviño, M. Calviani, D. Cano-OttR. Cardella, A. Casanovas, F. Cerutti, Y. H. Chen, E. Chiaveri, G. Cortés, M. A. Cortés-Giraldo, L. A. Damone, M. Diakaki, C. Domingo-Pardo, D. Diacono, R. Dressler, E. Dupont, I. Durán, B. Fernández-Domínguez, A. Ferrari, P. Ferreira, V. Furman, K. Göbel, A. R. García, A. Gawlik, S. Gilardoni, T. Glodariu, I. F. Gonçalves, E. González-Romero, E. Griesmayer, C. Guerrero, F. Gunsing, H. Harada, S. Heinitz, J. Heyse, D. G. Jenkins, E. Jericha, F. Käppeler, Y. Kadi, A. Kalamara, P. Kavrigin, A. Kimura, N. Kivel, I. Knapova, M. Kokkoris, M. Krtička, D. Kurtulgil, E. Leal-Cidoncha, C. Lederer, H. Leeb, J. Lerendegui-Marco, S. Lo Meo, S. J. Lonsdale, D. Macina, A. Manna, J. Marganiec, T. Martínez, A. Masi, C. Massimi, P. Mastinu, E. A. Maugeri, A. Mazzone, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, A. Musumarra, A. Negret, R. Nolte, A. Oprea, N. Patronis, A. Pavlik, J. Perkowski, I. Porras, J. Praena, J. M. Quesada, D. Radeck, T. Rauscher, R. Reifarth, C. Rubbia, J. A. Ryan, M. Sabaté-Gilarte, A. Saxena, P. Schillebeeckx, D. Schumann, PV Sedyshev, A. G. Smith, N. V. Sosnin, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, L. Tassan-Got, S. Valenta, G. Vannini, V. Variale, P. Vaz, A. Ventura, V. Vlachoudis, R. Vlastou, A. Wallner, S. Warren, C. Weiss, P. J. Woods, T. Wright, P. Žugec

Research output: Contribution to journal › Article › peer-review

Abstract

The 235U(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,α) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between 18 meV and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries. A comparison of the n_TOF data with the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement, within 0.5%, is found on average between the new results and the latest evaluated data files ENDF/B-VIII.0 and JEFF-3.3, as well as with respect to the broad group average fission cross section established in the framework of the standard working group of IAEA (the so-called reference file). However, some discrepancies, of up to 4%, are still present in some specific energy regions. The new dataset here presented, characterized by a unique combination of high resolution and accuracy, low background and wide energy range, can help to improve the evaluations from the Resolved Resonance Region up to 10 keV, also reducing the uncertainties that affect this region.

Original language	English
Article number	147
Pages (from-to)	1-13
Number of pages	13
Journal	The European Physical Journal A (EPJ A)
Volume	58
Issue number	8
Early online date	13 Aug 2022
DOIs	https://doi.org/10.1140/epja/s10050-022-00779-7
Publication status	Published - 13 Aug 2022

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Mastromarco, M., Amaducci, S., Colonna, N., Finocchiaro, P., Cosentino, L., Barbagallo, M., Aberle, O., Andrzejewski, J., Audouin, L., Bacak, M., Balibrea, J., Bečvář, F., Berthoumieux, E., Billowes, J., Bosnar, D., Brown, A., Caamaño, M., Calviño, F., Calviani, M., ... Žugec, P. (2022). High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV. The European Physical Journal A (EPJ A), 58(8), 1-13. Article 147. https://doi.org/10.1140/epja/s10050-022-00779-7

@article{632396c6e76547488d47fea08f8492bf,

title = "High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV",

abstract = "The 235U(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,α) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between 18 meV and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries. A comparison of the n_TOF data with the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement, within 0.5%, is found on average between the new results and the latest evaluated data files ENDF/B-VIII.0 and JEFF-3.3, as well as with respect to the broad group average fission cross section established in the framework of the standard working group of IAEA (the so-called reference file). However, some discrepancies, of up to 4%, are still present in some specific energy regions. The new dataset here presented, characterized by a unique combination of high resolution and accuracy, low background and wide energy range, can help to improve the evaluations from the Resolved Resonance Region up to 10 keV, also reducing the uncertainties that affect this region.",

author = "M. Mastromarco and S. Amaducci and N. Colonna and P. Finocchiaro and L. Cosentino and M. Barbagallo and O. Aberle and J. Andrzejewski and L. Audouin and M. Bacak and J. Balibrea and F. Be{\v c}v{\'a}{\v r} and E. Berthoumieux and J. Billowes and D. Bosnar and A. Brown and M. Caama{\~n}o and F. Calvi{\~n}o and M. Calviani and D. Cano-Ott and R. Cardella and A. Casanovas and F. Cerutti and Chen, {Y. H.} and E. Chiaveri and G. Cort{\'e}s and Cort{\'e}s-Giraldo, {M. A.} and Damone, {L. A.} and M. Diakaki and C. Domingo-Pardo and D. Diacono and R. Dressler and E. Dupont and I. Dur{\'a}n and B. Fern{\'a}ndez-Dom{\'i}nguez and A. Ferrari and P. Ferreira and V. Furman and K. G{\"o}bel and Garc{\'i}a, {A. R.} and A. Gawlik and S. Gilardoni and T. Glodariu and Gon{\c c}alves, {I. F.} and E. Gonz{\'a}lez-Romero and E. Griesmayer and C. Guerrero and F. Gunsing and H. Harada and S. Heinitz and J. Heyse and Jenkins, {D. G.} and E. Jericha and F. K{\"a}ppeler and Y. Kadi and A. Kalamara and P. Kavrigin and A. Kimura and N. Kivel and I. Knapova and M. Kokkoris and M. Krti{\v c}ka and D. Kurtulgil and E. Leal-Cidoncha and C. Lederer and H. Leeb and J. Lerendegui-Marco and Meo, {S. Lo} and Lonsdale, {S. J.} and D. Macina and A. Manna and J. Marganiec and T. Mart{\'i}nez and A. Masi and C. Massimi and P. Mastinu and Maugeri, {E. A.} and A. Mazzone and E. Mendoza and A. Mengoni and Milazzo, {P. M.} and F. Mingrone and A. Musumarra and A. Negret and R. Nolte and A. Oprea and N. Patronis and A. Pavlik and J. Perkowski and I. Porras and J. Praena and Quesada, {J. M.} and D. Radeck and T. Rauscher and R. Reifarth and C. Rubbia and Ryan, {J. A.} and M. Sabat{\'e}-Gilarte and A. Saxena and P. Schillebeeckx and D. Schumann and PV Sedyshev and Smith, {A. G.} and Sosnin, {N. V.} and A. Stamatopoulos and G. Tagliente and Tain, {J. L.} and A. Tarife{\~n}o-Saldivia and L. Tassan-Got and S. Valenta and G. Vannini and V. Variale and P. Vaz and A. Ventura and V. Vlachoudis and R. Vlastou and A. Wallner and S. Warren and C. Weiss and Woods, {P. J.} and T. Wright and P. {\v Z}ugec",

note = "{\textcopyright} 2022, The Author(s).",

year = "2022",

month = aug,

day = "13",

doi = "10.1140/epja/s10050-022-00779-7",

language = "English",

volume = "58",

pages = "1--13",

journal = "The European Physical Journal A (EPJ A)",

issn = "1434-6001",

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Mastromarco, M, Amaducci, S, Colonna, N, Finocchiaro, P, Cosentino, L, Barbagallo, M, Aberle, O, Andrzejewski, J, Audouin, L, Bacak, M, Balibrea, J, Bečvář, F, Berthoumieux, E, Billowes, J, Bosnar, D, Brown, A, Caamaño, M, Calviño, F, Calviani, M, Cano-Ott, D, Cardella, R, Casanovas, A, Cerutti, F, Chen, YH, Chiaveri, E, Cortés, G, Cortés-Giraldo, MA, Damone, LA, Diakaki, M, Domingo-Pardo, C, Diacono, D, Dressler, R, Dupont, E, Durán, I, Fernández-Domínguez, B, Ferrari, A, Ferreira, P, Furman, V, Göbel, K, García, AR, Gawlik, A, Gilardoni, S, Glodariu, T, Gonçalves, IF, González-Romero, E, Griesmayer, E, Guerrero, C, Gunsing, F, Harada, H, Heinitz, S, Heyse, J, Jenkins, DG, Jericha, E, Käppeler, F, Kadi, Y, Kalamara, A, Kavrigin, P, Kimura, A, Kivel, N, Knapova, I, Kokkoris, M, Krtička, M, Kurtulgil, D, Leal-Cidoncha, E, Lederer, C, Leeb, H, Lerendegui-Marco, J, Meo, SL, Lonsdale, SJ, Macina, D, Manna, A, Marganiec, J, Martínez, T, Masi, A, Massimi, C, Mastinu, P, Maugeri, EA, Mazzone, A, Mendoza, E, Mengoni, A, Milazzo, PM, Mingrone, F, Musumarra, A, Negret, A, Nolte, R, Oprea, A, Patronis, N, Pavlik, A, Perkowski, J, Porras, I, Praena, J, Quesada, JM, Radeck, D, Rauscher, T, Reifarth, R, Rubbia, C, Ryan, JA, Sabaté-Gilarte, M, Saxena, A, Schillebeeckx, P, Schumann, D, Sedyshev, PV, Smith, AG, Sosnin, NV, Stamatopoulos, A, Tagliente, G, Tain, JL, Tarifeño-Saldivia, A, Tassan-Got, L, Valenta, S, Vannini, G, Variale, V, Vaz, P, Ventura, A, Vlachoudis, V, Vlastou, R, Wallner, A, Warren, S, Weiss, C, Woods, PJ, Wright, T & Žugec, P 2022, 'High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV', The European Physical Journal A (EPJ A), vol. 58, no. 8, 147, pp. 1-13. https://doi.org/10.1140/epja/s10050-022-00779-7

TY - JOUR

T1 - High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV

AU - Mastromarco, M.

AU - Amaducci, S.

AU - Colonna, N.

AU - Finocchiaro, P.

AU - Cosentino, L.

AU - Barbagallo, M.

AU - Aberle, O.

AU - Andrzejewski, J.

AU - Audouin, L.

AU - Bacak, M.

AU - Balibrea, J.

AU - Bečvář, F.

AU - Berthoumieux, E.

AU - Billowes, J.

AU - Bosnar, D.

AU - Brown, A.

AU - Caamaño, M.

AU - Calviño, F.

AU - Calviani, M.

AU - Cano-Ott, D.

AU - Cardella, R.

AU - Casanovas, A.

AU - Cerutti, F.

AU - Chen, Y. H.

AU - Chiaveri, E.

AU - Cortés, G.

AU - Cortés-Giraldo, M. A.

AU - Damone, L. A.

AU - Diakaki, M.

AU - Domingo-Pardo, C.

AU - Diacono, D.

AU - Dressler, R.

AU - Dupont, E.

AU - Durán, I.

AU - Fernández-Domínguez, B.

AU - Ferrari, A.

AU - Ferreira, P.

AU - Furman, V.

AU - Göbel, K.

AU - García, A. R.

AU - Gawlik, A.

AU - Gilardoni, S.

AU - Glodariu, T.

AU - Gonçalves, I. F.

AU - González-Romero, E.

AU - Griesmayer, E.

AU - Guerrero, C.

AU - Gunsing, F.

AU - Harada, H.

AU - Heinitz, S.

AU - Heyse, J.

AU - Jenkins, D. G.

AU - Jericha, E.

AU - Käppeler, F.

AU - Kadi, Y.

AU - Kalamara, A.

AU - Kavrigin, P.

AU - Kimura, A.

AU - Kivel, N.

AU - Knapova, I.

AU - Kokkoris, M.

AU - Krtička, M.

AU - Kurtulgil, D.

AU - Leal-Cidoncha, E.

AU - Lederer, C.

AU - Leeb, H.

AU - Lerendegui-Marco, J.

AU - Meo, S. Lo

AU - Lonsdale, S. J.

AU - Macina, D.

AU - Manna, A.

AU - Marganiec, J.

AU - Martínez, T.

AU - Masi, A.

AU - Massimi, C.

AU - Mastinu, P.

AU - Maugeri, E. A.

AU - Mazzone, A.

AU - Mendoza, E.

AU - Mengoni, A.

AU - Milazzo, P. M.

AU - Mingrone, F.

AU - Musumarra, A.

AU - Negret, A.

AU - Nolte, R.

AU - Oprea, A.

AU - Patronis, N.

AU - Pavlik, A.

AU - Perkowski, J.

AU - Porras, I.

AU - Praena, J.

AU - Quesada, J. M.

AU - Radeck, D.

AU - Rauscher, T.

AU - Reifarth, R.

AU - Rubbia, C.

AU - Ryan, J. A.

AU - Sabaté-Gilarte, M.

AU - Saxena, A.

AU - Schillebeeckx, P.

AU - Schumann, D.

AU - Sedyshev, PV

AU - Smith, A. G.

AU - Sosnin, N. V.

AU - Stamatopoulos, A.

AU - Tagliente, G.

AU - Tain, J. L.

AU - Tarifeño-Saldivia, A.

AU - Tassan-Got, L.

AU - Valenta, S.

AU - Vannini, G.

AU - Variale, V.

AU - Vaz, P.

AU - Ventura, A.

AU - Vlachoudis, V.

AU - Vlastou, R.

AU - Wallner, A.

AU - Warren, S.

AU - Weiss, C.

AU - Woods, P. J.

AU - Wright, T.

AU - Žugec, P.

PY - 2022/8/13

Y1 - 2022/8/13

N2 - The 235U(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,α) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between 18 meV and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries. A comparison of the n_TOF data with the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement, within 0.5%, is found on average between the new results and the latest evaluated data files ENDF/B-VIII.0 and JEFF-3.3, as well as with respect to the broad group average fission cross section established in the framework of the standard working group of IAEA (the so-called reference file). However, some discrepancies, of up to 4%, are still present in some specific energy regions. The new dataset here presented, characterized by a unique combination of high resolution and accuracy, low background and wide energy range, can help to improve the evaluations from the Resolved Resonance Region up to 10 keV, also reducing the uncertainties that affect this region.

AB - The 235U(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,α) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between 18 meV and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries. A comparison of the n_TOF data with the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement, within 0.5%, is found on average between the new results and the latest evaluated data files ENDF/B-VIII.0 and JEFF-3.3, as well as with respect to the broad group average fission cross section established in the framework of the standard working group of IAEA (the so-called reference file). However, some discrepancies, of up to 4%, are still present in some specific energy regions. The new dataset here presented, characterized by a unique combination of high resolution and accuracy, low background and wide energy range, can help to improve the evaluations from the Resolved Resonance Region up to 10 keV, also reducing the uncertainties that affect this region.

UR - http://www.scopus.com/inward/record.url?scp=85135889206&partnerID=8YFLogxK

U2 - 10.1140/epja/s10050-022-00779-7

DO - 10.1140/epja/s10050-022-00779-7

M3 - Article

AN - SCOPUS:85135889206

SN - 1434-6001

VL - 58

SP - 1

EP - 13

JO - The European Physical Journal A (EPJ A)

JF - The European Physical Journal A (EPJ A)

IS - 8

M1 - 147

ER -

High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV

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