Characterization of the New n_TOF Neutron Beam: Fluence, Profile and Resolution

被引：2

作者：

Guerrero, C. ^{[1
]}

Becares, V. ^{[1
]}

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

Fernandez-Ordonez, M. ^{[1
]}

Gonzalez-Romero, E. ^{[1
]}

Martin-Fuertes, F. ^{[1
]}

Martinez, T. ^{[1
]}

Mendoza, E. ^{[1
]}

Pina, G. ^{[1
]}

Quinones, J. ^{[1
]}

Vlachoudis, V. ^{[1
]}

Calviani, M. ^{[2
]}

Andriamonje, S. ^{[2
]}

Brugger, M. ^{[2
]}

Cerutti, F. ^{[2
]}

Chiaveri, E. ^{[2
]}

Ferrari, A. ^{[2
]}

Kadi, Y. ^{[2
]}

Lebbos, E. ^{[2
]}

Berthoumieux, E. ^{[3
]}

Gunsing, F. ^{[3
]}

Andrzejewski, J. ^{[4
]}

Marganiec, J. ^{[4
]}

Perkowski, J. ^{[4
]}

Audouin, L. ^{[5
]}

Berthier, B. ^{[5
]}

Tassan-Got, L. ^{[5
]}

Avrigeanu, V. ^{[6
]}

Mirea, M. ^{[6
]}

Becvar, F. ^{[7
]}

Krticka, M. ^{[7
]}

Belloni, F. ^{[8
]}

Milazzo, P. M. ^{[8
]}

Calvino, F. ^{[9
]}

Cortes, G. ^{[9
]}

Gomez-Hornillos, M. B. ^{[9
]}

Carrapico, C. ^{[10
]}

Goncalves, I. F. ^{[10
]}

Sarmento, R. ^{[10
]}

Vaz, P. ^{[10
]}

Colonna, N. ^{[11
]}

Marrone, S. ^{[11
]}

Moinul, M. ^{[11
]}

Tagliente, G. ^{[11
]}

Variale, V. ^{[11
]}

Dillmann, I. ^{[12
,13
]}

Domingo-Pardo, C. ^{[14
]}

Heil, M. ^{[14
]}

Duran, I. ^{[15
]}

Paradela, C. ^{[15
]}

机构：

[1] Ctr Invest Energet Medioambientales & Tecnol, Madrid 28040, Spain

[2] CERN, Geneva, Switzerland

[3] CEA Saclay, Irfu SPhN, F-91191 Gif Sur Yvette, France

[4] Univ Lodz, PL-90131 Lodz, Poland

[5] CNRS, IPN IN2P3, F-91405 Orsay, France

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

[7] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[8] Ist Nazl Fis Nucl, Trieste, Italy

[9] Univ Politecn Cataluna, Barcelona, Spain

[10] ITN, Lisbon, Portugal

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

[12] Tech Univ Munich, Dept Phys E12, D-8046 Garching, Germany

[13] Excellence Cluster Universe, Garching, Germany

[14] GSI Helmholtzzentrum Schwerionenforsch GmbH, Darmstadt, Germany

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

[16] BARC, Mumbai, Maharashtra, India

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

[18] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy

[19] NCSR, Demokritos, Greece

[20] Univ Ioannina, GR-45110 Ioannina, Greece

[21] Vienna Univ Technol, Atominst, Osterreich Univ, Vienna, Austria

[22] Karlsruhe Inst Technol, Inst Kernphys, D-76021 Karlsruhe, Germany

[23] Univ Vienna, Fac Phys, VERA Lab, A-1090 Vienna, Austria

[24] Univ Seville, Seville, Spain

[25] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[26] Sez INFN Bologna, Bologna, Italy

[27] ENEA, Bologna, Italy

[28] PTB, Braunschweig, Germany

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

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2011年 / 59卷 / 02期

基金：

奥地利科学基金会;

关键词：

n_TOF; Time-of-flight; Neutron beam; Nuclear data; Cross sections;

D O I：

10.3938/jkps.59.1624

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

After a halt of four years, the n_TOF spallation neutron facility at CERN has resumed operation in November 2008 with a new spallation target characterized by an improved safety and engineering design, resulting in a more robust overall performance and efficient cooling. The first measurement during the 2009 run has aimed at the full characterization of the neutron beam. Several detectors, such as calibrated fission chambers, the n_TOF Silicon Monitor, a MicroMegas detector with B-10 and U-235 samples, as well as liquid and solid scintillators have been used in order to characterize the properties of the neutron fluence. The spatial profile of the beam has been studied with a specially designed "X-Y" MicroMegas which provided a 2D image of the beam as a function of neutron energy. Both properties have been compared with simulations performed. with the FLUKA code. The characterization of the resolution function is based on results from simulations which have been verified by the study of narrow capture resonances. of Fe-56, which were measured as part of a new campaign of (n,gamma) measurements on Fe and Ni isotopes.

引用

页码：1624 / 1627

页数：4

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