Characterisation of the neutron beam in the n_TOF-EAR2 experimental area at CERN following the spallation target upgrade
| Title: | Characterisation of the neutron beam in the n_TOF-EAR2 experimental area at CERN following the spallation target upgrade |
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| Authors: | Pavon-Rodriguez, J. A.; Lerendegui-Marco, J.; Manna, A.; Amaducci, S.; Sabate-Gilarte, M.; Musacchio-Gonzalez, E.; Bacak, M.; Alcayne, V.; Cortes-Giraldo, M. A.; Vlachoudis, V.; Zarrella, R.; Garcia-Infantes, F.; Casanovas, A.; Stamati, M. E.; Patronis, N.; Tassan-Got, L.; Quesada, J. M.; Aberle, O.; Altieri, S.; Es-Sghir, H. Amar; Andrzejewski, J.; Babiano-Suarez, V.; Balibrea, J.; Barbagallo, M.; Bennett, S.; Bernardes, A. P.; Berthoumieux, E.; Bosnar, D.; Busso, M.; Caamano, M.; Calvino, F.; Calviani, M.; Cano-Ott, D.; Castelluccio, D. M.; Cerutti, F.; Cescutti, G.; Chasapoglou, S.; Chiaveri, E.; Colombetti, P.; Colonna, N.; Console Camprini, P. C.; Cortes, G.; Cosentino, L.; Cristallo, S.; Di Castro, M.; Diacono, D.; Diakaki, M.; Dietz, M.; Domingo-Pardo, C.; Dressler, R.; Dupont, E.; Duran, I.; Eleme, Z.; Fargier, S.; Fernandez-Dominguez, B.; Finocchiaro, P.; Fiore, S.; Furman, V.; Gawlik-Ramiega, A.; Gervino, G.; Gilardoni, S.; Gonzalez-Romero, E.; Goula, S.; Guerrero, C.; Gunsing, F.; Gustavino, C.; Heyse, J.; Jenkins, D. G.; Jericha, E.; Junghans, A.; Kadi, Y.; Katabuchi, T.; Knapova, I.; Kokkoris, M.; Kopatch, Y.; Krticka, M.; Kurtulgil, D.; Ladarescu, I.; Lederer-Woods, C.; Le Naour, C.; Lerner, G.; Martinez, T.; Massara, A.; Masi, A.; Massimi, C.; Mastinu, P.; Mastromarco, M.; Matteucci, F.; Maugeri, E. A.; Mazzone, A.; Mendoza, E.; Mengoni, A.; Michalopoulou, V.; Milazzo, P. M.; Mucciola, R.; Murtas, F.; Musumarra, A.; Negret, A.; Oprea, A.; Perez-Maroto, P.; Pellegriti, M. G.; Perkowski, J.; Petrone, C.; Piersanti, L.; Pirovano, E.; Pomp, Stephan; Porras, I.; Praena, J.; Protti, N.; Rauscher, T.; Reifarth, R.; Rochman, D.; Romanets, Y.; Romano, F.; Rubbia, C.; Sanchez, A.; Schillebeeckx, P.; Schumann, D.; Sekhar, A.; Smith, A. G.; Sosnin, N. V.; Spelta, M.; Tagliente, G.; Tarifeno-Saldivia, A.; Tarrío, Diego; Terranova, N.; Torres-Sanchez, P.; Urlass, S.; Valenta, S.; Variale, V.; Vaz, P.; Vescovi, D.; Vlastou, R.; Wallner, A.; Woods, P. J.; Wright, T.; Zugec, P. |
| Publisher Information: | Uppsala universitet, Tillämpad kärnfysik; Univ Seville, Seville, Spain.;European Org Nucl Res CERN, Geneva, Switzerland.; Univ Valencia, Inst Fis Corpuscular, CSIC, Valencia, Spain.; Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy.;Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy.; INFN, Lab Nazl Sud, Catania, Italy.; European Org Nucl Res CERN, Geneva, Switzerland.;STFC Rutherford Appleton Lab, Particle Phys Dept, Harwell OX11 0QX, England.; INFN, Lab Nazl Legnaro, Legnaro, Italy.; European Org Nucl Res CERN, Geneva, Switzerland.; Ctr Invest Energet Medioambientales & Tecnol CIEMA, Madrid, Spain.; Univ Seville, Seville, Spain.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Granada, Granada, Spain.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Ioannina, Ioannina, Greece.; Univ Ioannina, Ioannina, Greece.; Ist Nazl Fis Nucl, Sez Pavia, Pavia, Italy.;Univ Pavia, Dept Phys, Pavia, Italy.; Univ Granada, Granada, Spain.; Univ Lodz, Lodz, Poland.; Univ Manchester, Manchester, Lancashire, England.; Univ Paris Saclay, CEA Irfu, F-91191 Gif Sur Yvette, France.; Univ Zagreb, Fac Sci, Dept Phys, Zagreb, Croatia.; Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy.;Univ Perugia, Dipartimento Fis & Geol, Perugia, Italy.; Univ Santiago De Compostela, Santiago De Compostela, Spain.; Univ Politecn Cataluna, Catalunya, Spain.; INFN, Lab Nazl Legnaro, Legnaro, Italy.;Agenzia Nazl Nuove Tecnol ENEA, Rome, Italy.; Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.;Univ Trieste, Dept Phys, Trieste, Italy.; Natl Tech Univ Athens, Athens, Greece.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Manchester, Manchester, Lancashire, England.; Ist Nazl Fis Nucl, Sez Torino, Turin, Italy.;Univ Torino, Dept Phys, Turin, Italy.; Ist Nazl Fis Nucl, Sez Bari, Bari, Italy.; Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy.;Ist Nazl Astrofis, Osservatorio Astron Teramo, Teramo, Italy.; Phys Tech Bundesanstalt PTB, Bundesallee 100, D-38116 Braunschweig, Germany.; Paul Scherrer Inst PSI, Villigen, Switzerland.; Agenzia Nazl Nuove Tecnol ENEA, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy.; CERN, Inst Covered Cooperat Agreement, Geneva, Switzerland.; Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy.; European Commiss, Joint Res Ctr JRC, Geel, Belgium.; Univ York, York, England.; TU Wien, Atominst, Stadionallee 2, A-1020 Vienna, Austria.; Helmholtz Zentrum Dresden Rossendorf, Dresden, Germany.; Tokyo Inst Technol, Tokyo, Japan.; Charles Univ Prague, Prague, Czech Republic.; Goethe Univ Frankfurt, Frankfurt, Germany.; Univ Edinburgh, Sch Phys & Astron, Edinburgh, Scotland.; Univ Paris Sud, Inst Phys Nucl, CNRS, IN2P3, CNRS-IN2P3, Paris, France.; Ist Nazl Fis Nucl, Sez Bari, Bari, Italy.;Univ Bari, Dipartimento Interateneo Fis, Bari, Italy.; Ist Nazl Fis Nucl, Sez Bari, Bari, Italy.;CNR, Bari, Bari, Italy.; European Org Nucl Res CERN, Geneva, Switzerland.;Natl Tech Univ Athens, Athens, Greece.; Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.; INFN, Lab Nazl Frascati, Frascati, Italy.; Ist Nazl Fis Nucl, Sez Catania, Catania, Italy.;Univ Catania, Dept Phys & Astron, Catania, Italy.; Horia Hulubei Natl Inst Phys & Nucl Engn, Magurele, Romania.; Ist Nazl Fis Nucl, Sez Catania, Catania, Italy.; Univ Basel, Dept Phys, Basel, Switzerland.; Inst Super Tecn, Lisbon, Portugal.; Agenzia Nazl Nuove Tecnol ENEA, Rome, Italy.;INFN, Lab Nazl Frascati, Frascati, Italy.; European Org Nucl Res CERN, Geneva, Switzerland.;Helmholtz Zentrum Dresden Rossendorf, Dresden, Germany.; Australian Natl Univ, Canberra, Australia. |
| Publication Year: | 2025 |
| Collection: | Uppsala University: Publications (DiVA) |
| Subject Terms: | Subatomic Physics; Subatomär fysik; Fusion; Plasma and Space Physics; plasma och rymdfysik |
| Description: | The n_TOF facility at CERN has undergone a major upgrade after the installation of a new spallation target, designed to improve the performance of both neutron beamlines at the experimental areas 1 and 2 (EAR1 and EAR2) and the commissioning of a new experimental area (NEAR). Due to improved coupling of the spallation target with the EAR2 beamline, the upgrade resulted in a significantly increased neutron flux and improved neutron energy resolution. This paper presents the results of the commissioning phase that followed to characterise the EAR2 neutron beamline and validate the FLUKA Monte Carlo simulations of the facility. The main characteristics of the neutron beam, namely the neutron flux, spatial profile and energy resolution, are evaluated and compared to the previous target. The neutron flux presents a general increase of 20% below 1 eV, 40% between 1 eV and 100 keV and 50% between 100 keV and 10 MeV. The measured width of the beam profile was 3 cm full width at half maximum (FWHM) at the reference position for neutron capture measurements. The energy resolution with the new spallation target shows a significant improvement compared to the previous one. Moreover, FLUKA Monte Carlo simulations present a good agreement with the measured neutron flux and profile within uncertainties, and a remarkable reproduction of the energy resolution. |
| Document Type: | article in journal/newspaper |
| File Description: | application/pdf |
| Language: | English |
| Relation: | European Physical Journal A, 1434-6001, 2025, 61:12; ISI:001632490600001 |
| DOI: | 10.1140/epja/s10050-025-01727-x |
| Availability: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-574662; https://doi.org/10.1140/epja/s10050-025-01727-x |
| Rights: | info:eu-repo/semantics/openAccess |
| Accession Number: | edsbas.91A80B6F |
| Database: | BASE |