Measurement and analysis of the 241Am neutron capture cross section at the n_TOF facility at CERN

被引：10

作者：

Mendoza, E. ^{[1
]}

Cano-Ott, D. ^{[1
]}

Altstadt, S. ^{[2
]}

Andriamonje, S. ^{[3
]}

Andrzejewski, J. ^{[4
]}

Audouin, L. ^{[5
]}

Balibrea, J. ^{[1
]}

Becares, V ^{[1
]}

Barbagallo, M. ^{[6
]}

Becvar, F. ^{[7
]}

Belloni, F. ^{[3
]}

Berthier, B. ^{[5
]}

Berthoumieux, E. ^{[3
]}

Billowes, J. ^{[8
]}

Bosnar, D. ^{[9
]}

Brugger, M. ^{[10
]}

Calvino, F. ^{[11
]}

Calviani, M. ^{[10
]}

Carrapico, C. ^{[12
]}

Cerutti, F. ^{[10
]}

Chiaveri, E. ^{[3
,10
]}

Chin, M. ^{[10
]}

Colonna, N. ^{[6
]}

Cortes, G. ^{[11
]}

Cortes-Giraldo, M. A. ^{[13
]}

Diakaki, M. ^{[14
]}

Dillmann, I ^{[15
]}

Domingo-Pardo, C. ^{[2
]}

Duran, I ^{[16
]}

Dzysiuk, N. ^{[17
]}

Eleftheriadis, C. ^{[18
]}

Ferrari, A. ^{[10
]}

Fraval, K. ^{[3
]}

Furman, V ^{[19
]}

Gomez-Hornillos, M. B. ^{[11
]}

Ganesan, S. ^{[20
]}

Garcia, A. R. ^{[1
]}

Giubrone, G. ^{[21
]}

Goncalves, I. F. ^{[12
]}

Gonzalez, E. ^{[1
]}

Goverdovski, A. ^{[22
]}

Gramegna, F. ^{[17
]}

Griesmayer, E. ^{[23
]}

Guerrero, C. ^{[10
,13
]}

Gunsing, F. ^{[3
]}

Gurusamy, P. ^{[20
]}

Heftrich, T. ^{[2
]}

Heinitz, S. ^{[24
]}

Hernandez-Prieto, A. ^{[10
,11
]}

Heyse, J. ^{[25
]}

机构：

[1] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain

[2] Goethe Univ Frankfurt, Frankfurt, Germany

[3] CEA Saclay, Irfu, Gif Sur Yvette, France

[4] Univ Lodz, Lodz, Poland

[5] Univ Paris Sud, Univ Paris Saclay, CNRS IN2P3, Inst Phys Nucl, F-91406 Orsay, France

[6] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

[7] Charles Univ Prague, Prague, Czech Republic

[8] Univ Manchester, Manchester, Lancs, England

[9] Univ Zagreb, Fac Sci, Dept Phys, Zagreb, Croatia

[10] CERN, European Org Nucl Res, Geneva, Switzerland

[11] Univ Politecn Cataluna, Barcelona, Spain

[12] Inst Super Tecn, Lisbon, Portugal

[13] Univ Seville, Seville, Spain

[14] Natl Tech Univ Athens, Athens, Greece

[15] Tech Univ Munich, Garching, Germany

[16] Univ Santiago de Compostela, Santiago De Compostela, Spain

[17] Ist Nazl Fis Nucl, Sez Legnaro, Legnaro, Italy

[18] Aristotle Univ Thessaloniki, Thessaloniki, Greece

[19] JINR, Dubna, Russia

[20] Bhabha Atom Res Ctr, Bombay, Maharashtra, India

[21] Univ Valencia, Inst Fis Corpuscular, Valencia, Spain

[22] IPPE, Obninsk, Russia

[23] Tech Univ Wien, Vienna, Austria

[24] PSI, Villigen, Switzerland

[25] European Commiss, Joint Res Ctr, Retieseweg 111, B-2440 Geel, Belgium

[26] Univ York, York, N Yorkshire, England

[27] Karlsruhe Inst Technol, IKP, Campus North, D-76021 Karlsruhe, Germany

[28] Tokyo Inst Technol, Tokyo, Japan

[29] ORNL, Oak Ridge, TN 37831 USA

[30] Univ Vienna, Fac Phys, Vienna, Austria

[31] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[32] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[33] ENEA, Agenzia Nazl Nuove Tecnol, Bologna, Italy

[34] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy

[35] Horia Hulubei Natl Inst Phys & Nucl Engn, Magurele, Romania

[36] Univ Granada, Granada, Spain

[37] Univ Basel, Dept Phys, Basel, Switzerland

[38] Australian Natl Univ, Canberra, ACT, Australia

来源：

PHYSICAL REVIEW C | 2018年 / 97卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

TOTAL ABSORPTION CALORIMETER; NUCLEAR-DATA; LIBRARY; COVARIANCES; SIMULATION; ACCURACY; SCIENCE; SIGNALS; BAF2;

D O I：

10.1103/PhysRevC.97.054616

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The Am-241(n, gamma) cross section has been measured at the n_TOF facility at CERN with the n_TOF BaF2 Total Absorption Calorimeter in the energy range between 0.2 eV and 10 keV. Our results are analyzed as resolved resonances up to 700 eV, allowing a more detailed description of the cross section than in the current evaluations, which contain resolved resonances only up to 150-160 eV. The cross section in the unresolved resonance region is perfectly consistent with the predictions based on the average resonance parameters deduced from the resolved resonances, thus obtaining a consistent description of the cross section in the full neutron energy range under study. Below 20 eV, our results are in reasonable agreement with JEFF-3.2 as well as with the most recent direct measurements of the resonance integral, and differ up to 20-30% with other experimental data. Between 20 eV and 1 keV, the disagreement with other experimental data and evaluations gradually decreases, in general, with the neutron energy. Above 1 keV, we find compatible results with previously existing values.

引用

页数：21

共 50 条

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Mendoza, E.
Cano-Ott, D.
Altstadt, S.
Andriamonje, S.
Andrzejewski, J.
Audouin, L.
Balibrea, J.
Becares, V.
Barbagallo, M.
Becvar, F.
Belloni, F.
Berthier, B.
Berthoumieux, E.
Billowes, J.
Boccone, V.
Bosnar, D.
Brugger, M.
Calvino, F.
Calviani, M.
Carrapico, C.
Cerutti, F.
Chiaveri, E.
Chin, M.
Colonna, N.
Cortes, G.
Cortes-Giraldo, M. A.
Diakaki, M.
Dillmann, I.
Domingo-Pardo, C.
Duran, I.
Dzysiuk, N.
Eleftheriadis, C.
Fernandez-Ordonez, M.
Ferrari, A.
Fraval, K.
Furman, V.
Gomez-Hornillos, M. B.
Ganesan, S.
Garcia, A. R.
Giubrone, G.
Goncalves, I. F.
Gonzalez, E.
Goverdovski, A.
Gramegna, F.
Griesmayer, E.
Guerrero, C.
Gunsing, F.
Gurusamy, P.
Heftrich, T.
Heinitz, S.
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[2] Measurement of the 241Am(n,γ) cross section at the n_TOF facility at CERN
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Cano-Ott, D.
Diakaki, M.
Dupont, E.
Geslot, B.
Glodariu, T.
Heyse, J.
Mendoza, E.
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Alcayne, V.
Amaducci, S.
Andrzejewski, J.
Audouin, L.
Becares, V.
Babiano-Suarez, V.
Barbagallo, M.
Becvar, F.
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Bosnar, D.
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Cortes, G.
Cortes-Giraldo, M. A.
Cosentino, L.
Cristallo, S.
Damone, L. A.
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N. Colonna
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S. Andriamonje
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W. Furman
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A. Goverdovski
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