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Advanced simulation techniques for Radiation Protection studies at the Large Hadron Collider
/ Bozzato, Davide (CERN) ; Dyrcz, Patrycja (CERN) ; Froeschl, Robert (CERN) ; Infantino, Angelo (CERN) ; Lorenzon, Tommaso (CERN) ; Tisi, Marco (CERN) ; Vincke, Heinz (CERN)
The paper provides an overview of the radiation protection challenges and the advanced simulation techniques used to study and plan complex interventions in radiation areas at CERN, particularly with regard to the Large Hadron Collider. The operational radiation protection aspects are supported by state of the art simulations by means of the FLUKA Monte Carlo code and estimates obtained via several tools, used within the CERN Radiation Protection group, such as ActiWiz, SESAME, and the Fluence Conversion Coefficients (FCC) method which extend the built-in FLUKA capabilities. [...]
2024 - 13 p.
- Published in : Radiat. Phys. Chem. 218 (2024) 111573
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Improvements of the SPS slow extraction electrostatic septum
/ Lackner, Friedrich (CERN) ; Prost, Antoine (CERN) ; Balhan, Bruno (CERN) ; Pirozzi, Fabrizio (CERN) ; Vincke, Helmut (CERN) ; Borburgh, Jan (CERN) ; Kawa, Krzysztof (CERN ; AGH-UST, Cracow) ; Jorat, Louise Olivia (CERN) ; Fraser, Matthew (CERN) ; Roudaut, Noah (CERN ; UTBM, Belfort)
The impact of high-flux protons on the inherent beam loss in the slow extraction straight from SPS towards the North Area has been recently discussed and potential improvements have been proposed. These solutions are mainly aiming to reduce the high component activation and related reduction of lifetime, as well as observed non-straightness in the anode body. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC72
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC72
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3.
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Radiological Characterization Studies for the CNGS Dismantling
/ Ahdida, Claudia (CERN) ; Nowak, Elzbieta (CERN) ; Saury, Christelle (CERN) ; Vincke, Heinz (CERN) ; Vincke, Helmut (CERN)
A comprehensive study of the radiological CNGS (CERN Neutrinos to Gran Sasso Experiment) environment characterization is presented. It comprises the evaluation of the residual dose rates of the most relevant standalone beam line equipment, such as the target and horn, as well as overall dose levels in the cavern before and after dismantling. [...]
2024 - 10 p.
- Published in : Nucl. Sci. Eng. 198 (2024) 175-184
In : 14th International Conference on Radiation Shielding & 21st Topical Meeting of the Radiation Protection and Shielding Division, Seattle, WA, USA, 25 - 29 Sep 2022, pp.175-184
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Scandium thermal release from activated natTi and natV target materials in mixed particle fields: Investigation of parameters relevant for isotope mass separation
/ Mamis, E (CERN ; Latvia U.) ; Kalnina, P (CERN ; Latvia U.) ; Duchemin, C (CERN) ; Lambert, L (CERN) ; Conan, N (CERN) ; Deschamps, M (CERN) ; Dorsival, A (CERN) ; Froeschl, R (CERN) ; Ruiz, F Ogallar (CERN) ; Theis, C (CERN) et al.
Scandium (Sc) has gained significant interest in nuclear medicine due to its 43Sc, 44g/mSc, and 47Sc radioactive isotopes being suitable for cancer diagnostics and therapy, offering a promising avenue for theranostics. Various production methods, including irradiation of enriched or naturally abundant calcium (Ca), titanium (Ti), and vanadium (V) materials with different particle beams, have been investigated to produce 43Sc, 44g/mSc, and 47Sc. [...]
2024 - 10 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 553 (2024) 165400
Fulltext: PDF;
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Design and early operation of a new-generation internal beam dump for CERN’s Super Proton Synchrotron
/ Francia, A. Romero (CERN) ; Perillo Marcone, A. (CERN) ; Pianese, S. (CERN) ; Andersen, K. (CERN) ; Izquierdo, G. Arnau (CERN) ; Briz, J.A. (CERN) ; Perez, D. Carbajo (CERN) ; Carlier, E. (CERN) ; Coiffet, T. (CERN) ; Esposito, L.S. (CERN) et al.
The Super Proton Synchrotron (SPS) is the last stage in the injector chain for CERN's Large Hadron Collider, and it also provides proton and ion beams for several fixed-target experiments. The SPS has been in operation since 1976, and it has been upgraded over the years. [...]
arXiv:2312.15485.-
2024-04-01 - 19 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 043001
Fulltext: Publication - PDF; 2312.15485 - PDF;
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Measurement and simulations of high-energy neutrons through a various thickness of concrete and steel shields using activation detectors at CHARM and CSBF
/ Nakao, Noriaki (Tokyo Inst. Tech.) ; Sanami, Toshiya (KEK, Tsukuba) ; Kajimoto, Tsuyoshi (Hiroshima U.) ; Yashima, Hiroshi (Kyoto Sangyo U.) ; Froeschl, Robert (CERN) ; Bozzato, Davide (CERN) ; Iliopoulou, Elpida (CERN) ; Infantino, Angelo (CERN) ; Lee, Eunji (Kyushu U.) ; Oyama, Takahiro (KEK, Tsukuba) et al.
A shielding experiment using activation detectors was performed at the CERN High-energy AcceleRator Mixed-field (CHARM) facility and the CERN Shielding Benchmark Facility (CSBF). The protons (24 GeV/c) were bombarded into a 50-cm-thick copper target, and the released neutrons were transmitted through various shields located vertically upward from the target. [...]
2023 - 19 p.
- Published in : J. Nucl. Sci. Tech. 61 (2023) 429-447
Fulltext: PDF;
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Investigating the feasibility of delivering higher intensity proton beams to ECN3 at the CERN SPS North Area
/ Fraser, M A (CERN) ; Brugger, M (CERN) ; Ahdida, C (CERN) ; Arduini, G (CERN) ; Arrutia Sota, P A (CERN) ; Bartosik, H (CERN) ; Bernhard, J (CERN) ; Calviani, M (CERN) ; Colinet, A (CERN) ; Esposito, L S (CERN) et al.
Initiated through the Physics Beyond Colliders (PBC) Study Group there is a strong interest from the scientific community to exploit the full intensity potential of the Super Proton Synchrotron (SPS) at CERN for Fixed Target physics experiments before the end of this decade. With the ECN3 cavern in the North Area (NA) identified as a suitable candidate location for a future high-intensity experimental facility compatible with a large variety of experiments, the new PBC ECN3 Beam Delivery Task Force was mandated to assess the feasibility of delivering a slow extracted beam of up to 4x10^19 protons per year at 400 GeV. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPA084
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA084
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Radiological characterization for the disposal of a decommissioned LHC external beam dump at CERN
/ Infantino, Angelo (CERN) ; Harbron, Richard William (CERN) ; Mouret, Renaud (CERN) ; Bertreix, Philippe (CERN) ; Bernardes, Ana-Paula (CERN) ; Bruno, Luca (CERN) ; Calviani, Marco (CERN) ; Dumont, Gerald (CERN) ; El-Idrissi, Safouane (CERN) ; Magistris, Matteo (CERN) et al.
During the last Long Shutdown, a scheduled maintenance period between physics runs, the two Large Hadron Collider (LHC) beam dumps were replaced with upgraded spares modules. It was then decided to conduct an in-house autopsy and a post-irradiation examination of the removed dumps to extract information essential for the 3rd LHC physics run and to aid the design of new generations of beam dumps able to cope with future upgrades of the LHC. [...]
2023 - 13 p.
- Published in : Eur. Phys. J. Plus 138 (2023) 692
Fulltext: PDF;
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