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CERN Document Server Sök i 2,045 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.16 sekunder. 
1.
(100)
Classification of radiological objects at the exit of accelerators with a dose-rate constraint / Frosio, Thomas (CERN) ; Dumont, Gerald (CERN) ; Froeschl, Robert (CERN) ; Iliopoulou, Elpida (CERN) ; Magistris, Matteo (CERN) ; Menaa, Nabil (CERN) ; Roesler, Stefan (CERN) ; Theis, Chris (CERN) ; Vincke, Heinz (CERN) ; Vincke, Helmut (CERN)
Maintenance activities and operations of high-energy particle accelerators can lead to the collection of radioactive equipment as well as waste materials. In order to ensure their proper classification as radioactive or non-radioactive, one has to quantify the activities of radionuclides produced. [...]
2020 - 13 p. - Published in : Appl. Radiat. Isot. 165 (2020) 109303 Fulltext: PDF;
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2.
(91)
New methodology for in-situ classification of radiological items with a clearance monitor system / Frosio, Thomas (CERN) ; Menaa, Nabil (CERN) ; Dumont, Gérald (CERN) ; Aberle, Frédéric (CERN)
Maintenance activities and operations of high-energy particle accelerators can lead to the collection ofradioactive equipment as well as waste materials. In order to ensure their proper classification as radioactiveor non-radioactive, one has to quantify the activities of radionuclides produced. [...]
2020 - 8 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 966 (2020) 163847 Fulltext: PDF;
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3.
(54)
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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4.
(44)
Generation of low-energy neutrons cross-sections for the Monte Carlo code FLUKA and the deterministic code ActiWiz / Frosio, Thomas (CERN) ; Magistris, Matteo (CERN) ; Theis, Chris (CERN) ; Vincke, Helmut (CERN)
Activation of material is of interest for waste treatment and hazard assessment. In particular, activation of printed circuit can lead to the production of radionuclides at an isomeric state, for example, coming from silver. [...]
2020 - 6 p. - Published in : Appl. Radiat. Isot. 166 (2020) 109352 Fulltext: PDF;
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5.
(43)
Radiological clearance of equipment from high-energy electron accelerators: The example of LEP superconducting acceleration system / Duchemin, Charlotte (CERN) ; Magistris, Matteo (CERN) ; Pozzi, Fabio (CERN) ; Silari, Marco (CERN) ; Theis, Chris (CERN) ; Vincke, Helmut (CERN)
The lifespan of a particle accelerator includes its final decommissioning and the disposal of potentially activated materials, one of the major challenges faced at accelerator laboratories. This paper discusses the computational and experimental techniques adopted for clearing from regulatory control the superconducting acceleration system of the former CERN Large Electron Positron collider (LEP), consisting of nearly 450 tons of valuable metals. [...]
2019 - 14 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 919 (2019) 42-55
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6.
(42)
Computation of radioactive material transport limits within A1/A2 Working Group at IAEA TRANSSC / Frosio, Thomas (CERN) ; Bertreix, Philippe (CERN) ; Theis, Chris (CERN) ; Donjoux, Yann (CERN) ; Cabianca, Tiberio (Public Health England, London) ; Brown, Iain (Public Health England, London) ; Foster, Matthew (Public Health England, London) ; Endres, Janis (Gesellschaft für Anlagen-und Reaktorsicherheit, Cologne) ; Eberhardt, Holger (Gesellschaft für Anlagen-und Reaktorsicherheit, Cologne) ; Hayakawa, Nobuhiro (MHI NS Engineering Company, Yokohama) et al.
IAEA's (International Atomic Energy Agency) publication SSG-26 defines a methodology for calculating A1/A2 values. These values were conceived as limits for the transport of radioactive goods, to limit the public's exposure to radiation in the event of an accident. [...]
2020 - 15 p. - Published in : IEEE Access 8 (2020) 29040-29054 Fulltext: PDF;
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7.
(41)
Radiological characterization of large electromagnets in view of their elimination as very low-level wastes / Frosio, Thomas (CERN) ; Magistris, Matteo (CERN) ; Menaa, Nabil (CERN) ; Michaud, Régis (CERN) ; Rimlinger, Maeva (CERN) ; Theis, Chris (CERN)
The operation of particle accelerators at CERN requires the use of electromagnets, which are accelerator components used to guide and focus charged particles. In the framework of maintenance activities and machine upgrades or dismantling, a large number of magnets are removed from the accelerator complex and required characterization in view of their disposal as radioactive waste. [...]
2020 - 13 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 959 (2020) 163493 Fulltext from publisher: PDF;
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8.
(34)
Development of an In-Situ Radiological Classification Technique for Material from CERN's Accelerator Facilities / Walter, Nick
CERN, the European Organization for Nuclear Research, operates high energy accelerators for particle physics research [...]
CERN-THESIS-2015-276 - 179 p.

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9.
(33)
Qualification of the activities measured by gamma spectrometry on unitary items of intermediate-level radioactive waste from particle accelerators / Dyrcz, Patrycja (CERN) ; Frosio, Thomas (CERN) ; Menaa, Nabil (CERN) ; Magistris, Matteo (CERN) ; Theis, Chris (CERN)
In the frame of maintenance, upgrade and dismantling activities, activated equipment are removed from the accelerator complex and require characterization in view of their disposal as radioactive waste. The characterization process consists of a series of radiation measurements, complemented by analytical studies, which quantify the activity of radionuclides inside an object. [...]
2021 - Published in : Appl. Radiat. Isot. 167 (2021) 109431 Fulltext: PDF;
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10.
(29)
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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