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1.
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Reflectivity Studies and Production of New Flat Mirrors for the Cherenkov Threshold Detectors at CERN
/ Buesa Orgaz, Jan (CERN) ; Van Dijk, Maarten (CERN) ; Banerjee, Dipanwita (CERN) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Charitonidis, Nikolaos (CERN) ; Ebn Rahmoun, Aboubakr (CERN) ; Lazzaroni, Michael (CERN) ; Marchand, Vincent (CERN) ; Ortega Ruiz, Inaki (CERN) et al.
Cherenkov threshold detectors (XCET) are used for identifying particles in the experimental areas at CERN. These detectors observe Cherenkov light emitted by charged particles travelling inside a pressurized gas vessel. [...]
arXiv:2407.18617.-
2024-07-01 - 4 p.
- Published in : JACoW IPAC 2024 (2024) 2434-2437
Fulltext: 2407.18617 - PDF; document - PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.2434-2437
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2.
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Cryogenic Current Comparators as Low Intensity Diagnostics for Ion Beams
/ Sieber, Thomas (Darmstadt, GSI) ; Crescimbeni, Lorenzo (U. Jena (main) ; Darmstadt, GSI) ; Haider, David (Darmstadt, GSI) ; Marsic, Nicolas (Denmark, Tech. U.) ; Schmelz, Matthias ; Schmidl, Frank (U. Jena (main)) ; Schwickert, Marcus ; Stöhlker, Thomas (Helmholtz Inst., Jena ; Darmstadt, GSI) ; Stolz, Ronny (Ilmenau Tech. U.) ; Tan, Jocelyn (CERN) et al.
The Cryogenic Current Comparator (CCC) is a SQUID based superconducting device for intensity measurement, firstly proposed as a beam diagnostics instrument in the 90s at GSI. After prove of principle the CCC was introduced into other facilities, attesting great potential for high resolution measurements but at the same time considerable mechanical and cryogenics challenges and costs. [...]
2023 - 5 p.
- Published in : JACoW IBIC 2023 (2023) TUP036
Fulltext: PDF;
In : 12th International Beam Instrumentation Conference (IBIC 2023), Saskatoon, Canada, 10 - 14 Sep 2023, pp.TUP036
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3.
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Fast Spill Monitor Studies for the SPS Fixed Target Beams
/ Roncarolo, Federico (CERN) ; Arrutia Sota, Pablo Andreas (CERN) ; Belohrad, David (CERN) ; Bergamaschi, Michele (CERN) ; Calvo Giraldo, Eva (CERN) ; Effinger, Ewald (CERN) ; Fraser, Matthew (CERN) ; Kain, Verena (CERN) ; Martin Nieto, Miguel (CERN) ; Mazzoni, Stefano (CERN) et al.
At the CERN Super Proton Synchrotron (SPS) the proton beam is supplied to the fixed target experiments in the North Area facility (NA) via a slow extraction process, taking place at 400 GeV. The monitoring of the spill quality during the extraction, lasting 4.8 seconds with the present SPS setup, is of high interest for minimising beam losses and providing the users with uniform proton-on-target rates. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 522-526
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.522-526
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4.
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Commissioning the New CERN Beam Instrumentation Following the Upgrade of the LHC Injector Chain
/ Roncarolo, Federico (CERN) ; Bart Pedersen, Stephane (CERN) ; Belleman, Jeroen (CERN) ; Belohrad, David (CERN) ; Bozzolan, Michele (CERN) ; Bracco, Chiara (CERN) ; Di Carlo, Salvatore (CERN) ; Emery, Jonathan (CERN) ; Goldblatt, Aurélie (CERN) ; Guerrero, Ana (CERN) et al.
The LHC injectors Upgrade (LIU) program has been fully implemented during the second long shutdown (LS2), which took place in 2019-20. In this context, new or upgraded beam instrumentation was developed to cope with H⁻ beam in LINAC4 and the new Proton Synchrotron Booster (PSB) injection systems which would provide high brightness proton beams in the rest of the injector complex. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 976-979
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.976-979
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5.
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First Measurements of a New Type of Coreless Cryogenic Current Comparators (4C) for Non-Destructive Intensity Diagnostics of Charged Particles
/ Tympel, Volker (Helmholtz Inst., Jena) ; Anders, Solveig (Inst. Photonic Tech., Jena) ; De Gersem, Herbert (Darmstadt, Tech. U.) ; Golm, Jessica (Jena U.) ; Haider, David (Darmstadt, GSI) ; Kunert, Juergen (Inst. Photonic Tech., Jena) ; Marsic, Nicolas (Darmstadt, Tech. U.) ; Müller, Wolfgang (Darmstadt, Tech. U.) ; Schmelz, Matthias (Inst. Photonic Tech., Jena) ; Schmidl, Frank (Darmstadt, GSI) et al.
The non-destructive and highly sensitive measurement of a charged particle beam is of utmost importance for modern particle accelerator facilities. A Cryogenic Current Comparator (CCC) can be used to measure beam currents in the nA-range. [...]
2019 - 3 p.
- Published in : 10.18429/JACoW-IBIC2019-MOPP008
Fulltext: PDF;
In : 8th International Beam Instrumentation Conference (IBIC 2019), Malmo, Sweden, 8 - 12 Sep 2019, pp.MOPP008
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6.
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Results from the CERN LINAC4 Longitudinal Bunch Shape Monitor
/ Tan, Jocelyn (CERN) ; Bellodi, Giulia (CERN) ; Feschenko, Alexander (Moscow, INR) ; Gavrilov, Sergei (Moscow, INR)
The CERN Linac4 has been successfully commissioned to its nominal energy and will provide 160 MeV H⁻ ions for charge-exchange injection into the Proton Synchrotron Booster (PSB) from 2020. A complete set of beam diagnostic devices has been installed along the accelerating structures and the transfer line for safe and efficient operation. [...]
JACoW, 2019 - 5 p.
- Published in : 10.18429/JACoW-IBIC2018-WEPA19
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.WEPA19
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7.
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Beam Intensity Monitoring with nA Resolution - the Cryogenic Current Comparator (CCC)
/ Haider, David (Darmstadt, GSI) ; De Gersem, Herbert (Darmstadt, Tech. Hochsch.) ; Fernandes, Miguel (CERN) ; Forck, Peter (Darmstadt, GSI) ; Golm, Jessica (Unlisted, DE) ; Kurian, Febin (Darmstadt, GSI) ; Marsic, Nicolas (Darmstadt, Tech. Hochsch.) ; Schmelz, Matthias (Inst. Photonic Tech., Jena) ; Schmidl, Frank (Unlisted, DE) ; Schwickert, Marcus (Darmstadt, GSI) et al.
The storage of low current beams as well as the long extraction times from the synchrotrons at FAIR require non-destructive beam intensity monitoring with a current resolution of nanoampere. To fulfill this requirement, the concept of the Cryogenic Current Comparator (CCC), based on the low temperature SQUID, is used to obtain an extremely sensitive beam current transformer. [...]
JACoW, 2019 - 4 p.
- Published in : 10.18429/JACoW-IBIC2018-MOPC08
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.MOPC08
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8.
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Comparative Measurement and Characterisation of Three Cryogenic Current Comparators Based on Low-Temperature Superconductors
/ Tympel, Volker (Helmholtz Inst., Jena) ; De Gersem, Herbert (Darmstadt, Tech. Hochsch.) ; Fernandes, Miguel (Cockcroft Inst. Accel. Sci. Tech. ; CERN ; U. Liverpool (main)) ; Golm, Jessica (U. Jena (main)) ; Haider, David (Darmstadt, GSI) ; Kurian, Febin (Darmstadt, GSI) ; Marsic, Nicolas (Darmstadt, Tech. Hochsch.) ; Müller, Wolfgang (Darmstadt, Tech. Hochsch.) ; Neubert, Ralf (U. Jena (main) ; TLS, Tautenburg) ; Schmelz, Matthias (Inst. Photonic Tech., Jena) et al.
A Cryogenic Current Comparator (CCC) is a non-destructive, metrological-traceable charged particle beam intensity measurement system for the nano-ampere range. Using superconducting shielding and coils, low temperature Superconducting Quantum Interference Devices (SQUIDs) and highly permeable flux-concentrators, the CCC can operate in the frequency range from DC to several kHz or hundreds of kHz depending on the requirement of the application. [...]
JACoW, 2019 - 4 p.
- Published in : 10.18429/JACoW-IBIC2018-MOPC06
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.MOPC06
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9.
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Next generation Cryogenic Current Comparator (CCC) for nA intensity measurement
/ Sieber, Thomas (Darmstadt, GSI) ; De Gersem, Herbert (Darmstadt, Tech. U.) ; Golm, Jessica (U. Jena (main)) ; Haider, David (Darmstadt, GSI) ; Marsic, Nicolas (Darmstadt, Tech. U.) ; Müller, Wolfgang (Darmstadt, Tech. U.) ; Reeg, Hansjörg (Darmstadt, GSI) ; Schmelz, Matthias (Inst. Photonic Tech., Jena) ; Schmidl, Frank (U. Jena (main)) ; Schwickert, Marcus (Darmstadt, GSI) et al.
A Cryogenic Current Comparator (CCC) is an extremely sensitive DC-Beam Transformer based on superconducting SQUID technology. Recently, a CCC without a toroidal core and with an axially oriented magnetic shielding has been developed at the Institute of Photonic Technologies (IPHT) Jena/Germany. [...]
CERN-ACC-2019-193.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW020
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW020
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10.
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Different versions of Cryogenic Current Comparators with magnetic core for beam current measurements
/ Golm, Jessica (Jena U. ; Helmholtz Inst., Jena) ; De Gersem, Herbert (Darmstadt, Tech. U.) ; Fernandes, Miguel (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Haider, David (Darmstadt, GSI) ; Kurian, Febin (Darmstadt, GSI) ; Marsic, Nicolas (Darmstadt, Tech. U.) ; Müller, Wolfgang (Darmstadt, Tech. U.) ; Neubert, Ralf (Jena U. ; TLS, Tautenburg) ; Schmelz, Matthias (Inst. Photonic Tech., Jena) ; Schmidl, Frank (Jena U.) et al.
For more than 20 years Cryogenic Current Comparators (CCC) are used to measure the current of charged particle beams with low intensity (nA-range). The device was first established at GSI in Darmstadt and was improved over the past two decades by the cooperation of institutes in Jena, GSI and CERN. [...]
CERN-ACC-2019-230.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THYYPLS2
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THYYPLS2
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