Simultaneous measurement of neutron-induced capture and fission reactions at CERN

被引：26

作者：

Guerrero, C. ^{[1
,2
]}

Berthoumieux, E. ^{[1
,7
]}

Cano-Ott, D. ^{[2
]}

Mendoza, E. ^{[2
]}

Andriamonje, S. ^{[1
]}

Andrzejewski, J. ^{[4
]}

Audouin, L. ^{[3
]}

Barbagallo, M. ^{[10
]}

Becares, V. ^{[2
]}

Becvar, F. ^{[5
]}

Belloni, F. ^{[6
]}

Billowes, J. ^{[26
]}

Brugger, M. ^{[1
]}

Calviani, M. ^{[1
]}

Calvino, F. ^{[8
]}

Carrapico, C. ^{[9
]}

Cerutti, F. ^{[1
]}

Chiaveri, E. ^{[1
]}

Chin, M. ^{[1
]}

Colonna, N. ^{[10
]}

Cortes, G. ^{[8
]}

Cortes-Giraldo, M. A. ^{[11
]}

Diakaki, M. ^{[25
]}

Dillmann, I. ^{[12
]}

Domingo-Pardo, C. ^{[13
]}

Duran, I. ^{[14
]}

Eleftheriadis, C. ^{[28
]}

Fernandez-Ordonez, M. ^{[2
]}

Ferrari, A. ^{[1
]}

Ganesan, S. ^{[15
]}

Giubrone, G. ^{[16
]}

Gomez-Hornillos, M. B. ^{[8
]}

Goncalves, I. F. ^{[9
]}

Gonzalez-Romero, E. ^{[2
]}

Gramegna, F. ^{[17
]}

Griesmayer, E. ^{[18
]}

Gunsing, F. ^{[7
]}

Jenkins, D. ^{[27
]}

Jericha, E. ^{[18
]}

Kadi, Y. ^{[1
]}

Kaeppeler, F. ^{[18
]}

Karadimos, D. ^{[25
]}

Kroll, J. ^{[5
]}

Krticka, M. ^{[5
]}

Lebbos, E. ^{[1
]}

Lederer, C. ^{[19
]}

Leeb, H. ^{[18
]}

Losito, R. ^{[1
]}

Lozano, M. ^{[11
]}

Manousos, A. ^{[28
]}

机构：

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

[2] Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain

[3] IPN, IN2P3, CNRS, Orsay, France

[4] Uniwersytet Lodzki, Lodz, Poland

[5] Charles Univ Prague, Prague, Czech Republic

[6] Ist Nazl Fis Nucl, Trieste, Italy

[7] Commissariat Energie Atom CEA Saclay Irfu, Gif Sur Yvette, France

[8] Univ Politecn Cataluna, Barcelona, Spain

[9] ITN, Lisbon, Portugal

[10] Ist Nazl Fis Nucl, I-70126 Bari, Italy

[11] Univ Seville, Seville, Spain

[12] Tech Univ Munich, Phys Dept E12, Munich, Germany

[13] GSI Helmholtzzentrum Schwerionenforsch GmbH, Darmstadt, Germany

[14] Univ Santiago de Compostela, Seville, Spain

[15] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India

[16] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain

[17] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Bologna, Italy

[18] Vienna Univ Technol, Atominst, Vienna, Austria

[19] Univ Vienna, Fac Phys, A-1010 Vienna, Austria

[20] Univ Bologna, Dipartimento Fis, Bologna, Italy

[21] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[22] ENEA, Agenzia Nazl Nuove Tecnol Energia & Sviluppo Econ, Bologna, Italy

[23] Univ Basel, Dept Phys & Astron, Basel, Switzerland

[24] IFIN HH, Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[25] Natl Tech Univ Athens, GR-10682 Athens, Greece

[26] Univ Manchester, Manchester M13 9PL, Lancs, England

[27] Univ York, York YO10 5DD, N Yorkshire, England

[28] Aristotle Univ Thessaloniki, GR-54006 Thessaloniki, Greece

来源：

EUROPEAN PHYSICAL JOURNAL A | 2012年 / 48卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

CROSS-SECTIONS; SIMULATION; U-235;

D O I：

10.1140/epja/i2012-12029-2

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 measurement of the capture cross-section of fissile elements, of utmost importance for the design of innovative nuclear reactors and the management of nuclear waste, faces particular difficulties related to the.-ray background generated in the competing fission reactions. At the CERN neutron time-of-flight facility n_TOF we have combined the Total Absorption Calorimeter (TAC) capture detector with a set of three U-235 loaded MicroMegas (MGAS) fission detectors for measuring simultaneously two reactions: capture and fission. The results presented here include the determination of the three detection efficiencies involved in the process: epsilon(TAC)(n, f), epsilon(TAC)(n, gamma) and epsilon(MGAS)(n, f). In the test measurement we have succeeded in measuring simultaneously with a high total efficiency the U-235 capture and fission cross-sections, disentangling accurately the two types of reactions. The work presented here proves that accurate capture cross-section measurements of fissile isotopes are feasible at n_TOF.

引用

页码：1 / 9

页数：9

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