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Development and Testing of a Cherenkov Beam Loss Monitor in CLEAR Facility
/ Benitez Berrocal, Sara (CERN ; Huddersfield U.) ; Effinger, Ewald (CERN ; Saclay) ; Farabolini, Wilfrid (CERN ; Saclay) ; Gilardi, Antonio (CERN ; Naples U. ; INFN, Naples) ; Korysko, Pierre (CERN ; Oxford U.) ; Lane, Phil (CERN ; Huddersfield U.) ; Lima, Erika (CERN) ; Salvachua, Belen (CERN) ; Viganò, William (CERN)
Beam Loss Monitors are fundamental diagnostic systems in particle accelerators. Beam losses are measured by a wide range of detectors with excellent results; most of these devices are used to measure local beam losses. [...]
2021 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB021
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.WEPAB021
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2.
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Beam Loss Localisation with an Optical Beam Loss Monitor in the CLEAR Facility at CERN
/ Benítez Berrocal, Sara (CERN) ; Chen, Minsi (Huddersfield U.) ; Effinger, Ewald (CERN) ; Esteban Felipe, Jose (CERN) ; Farabolini, Wilfrid (IRFU, Saclay ; CERN) ; Korysko, Pierre (CERN ; Oxford U.) ; Lernevall, Anders (CERN) ; Salvachúa, Belen (CERN)
A prototype of a Beam Loss Monitor based on the detection of Cherenkov light in optical fibres is being developed to measure beam losses in the CERN Super Proton Synchrotron. Several testing campaigns have been planned to benchmark the simulations of the system and test the electronics in the CLEAR facility at CERN. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 351-354
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.351-354
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Linearity and Response Time of the LHC Diamond Beam Loss Monitors in the CLEAR Beam Test Facility at CERN
/ Morales Vigo, Sara (CERN ; Cockcroft Inst. Accel. Sci. Tech.) ; Calvo Giraldo, Eva (CERN) ; Dyks, Luke (CERN) ; Effinger, Ewald (CERN) ; Farabolini, Wilfrid (CERN) ; Korysko, Pierre (CERN) ; Lernevall, Anders (CERN) ; Salvachúa, Belen (CERN) ; Welsch, Carsten (Cockcroft Inst. Accel. Sci. Tech.) ; Wolfenden, Joseph (Cockcroft Inst. Accel. Sci. Tech.) et al.
Chemical Vapour Deposition (CVD) diamond detectors have been tested during the Run 2 operation period (2015-2018) as fast beam loss monitors for the Beam Loss Monitoring (BLM) system of the Large Hadron Collider (LHC) at CERN. However, the lack of raw data recorded during this operation period restrains our ability to perform a deep analysis of their signals. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 355-358
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.355-358
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A systematic investigation of beam losses and position reconstruction techniques measured with a novel oBLM at CLEAR
/ King, Montague (CERN ; Liverpool U.) ; Christie, Alexander (Oxford U.) ; Salvachua, Belen (CERN) ; Welsch, Carsten (Liverpool U.) ; Effinger, Ewald (CERN) ; Meyer, Jean Michel (CERN) ; Esteban Felipe, Jose (CERN) ; Wolfenden, Joseph (Cockcroft Inst. Accel. Sci. Tech.) ; Korysko, Pierre (Oxford U.) ; Benitez, Sara (CERN) et al.
Optical Beam Loss Monitors (oBLMs) allow for cost-efficient and spatially continuous measurements of beam losses at accelerator facilities. A standard oBLM consists of several tens of meters of optical fibre aligned parallel to the beamline, coupled to photosensors at either or both ends. [...]
2024 - 5 p.
- Published in : JACoW IBIC 2024 (2024) FRBC2
Fulltext: PDF;
In : 13th International Beam Instrumentation Conference (IBIC 2024), Beijing, China, 9-13 Sep 2024, pp.FRBC2
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Position Resolution of Optical Fibre-Based Beam Loss Monitors Using Long Electron Pulses
/ Nebot Del Busto, Eduardo (CERN ; Liverpool U.) ; Boland, Mark (Australia, CSIRO, Clayton ; Melbourne U.) ; Döbert, Steffen (CERN) ; Domingues Sousa, Fernando (CERN) ; Effinger, Ewald (CERN) ; Farabolini, Wilfrid (CEA, DSM, Saclay ; IRFU, Saclay ; CERN) ; Holzer, Eva Barbara (CERN) ; Kastriotou, Maria (Cockcroft Inst. Accel. Sci. Tech. ; CERN ; Liverpool U.) ; Rassool, Roger (Melbourne U.) ; Viganò, William (CERN) et al.
Beam loss monitoring systems based on optical fibres (oBLM), have been under consideration for future colliders for several years. To distinguish losses between consecutive quadrupoles, a position resolution of less than 1 m is required. [...]
2016 - 5 p.
- Published in : 10.18429/JACoW-IBIC2015-WEBLA03
Fulltext: PDF;
In : International Beam Instrumentation Conference , Melbourne, Australia, 13 - 17 Sep 2015, pp.WEBLA03
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Beam Loss Signal Calibration for the LHC Diamond Detectors During Run 2
/ Morales Vigo, Sara (CERN ; Liverpool U.) ; Calvo Giraldo, Eva (CERN) ; Effinger, Ewald (CERN) ; Salvachua, Belen (CERN) ; Welsch, Carsten P (Liverpool U.) ; Wolfenden, Joseph (Liverpool U.) ; Zamantzas, Christos (CERN)
Chemical Vapour Deposition (CVD) diamond detectors can be used as fast beam loss monitors in particle accelerators. In the Large Hadron Collider (LHC) at CERN, they are installed in the betatron collimation region, a high-radiation environment. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IBIC 2021 (2021) 290-293
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.290-293
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Testing the Properties of Beam-Dose Monitors for VHEE-FLASH Radiation Therapy
/ Bateman, Joseph (JAI, UK) ; Burrows, Philip (JAI, UK) ; Corsini, Roberto (CERN) ; Dosanjh, Manjit (CERN) ; Dyks, Luke (JAI, UK) ; Farabolini, Wilfrid (CERN) ; Gerbershagen, Alexander (CERN) ; Heracleous, Natalie (CERN) ; Korysko, Pierre (CERN) ; Morales Vigo, Sara (CERN) et al.
Very High Energy Electrons (VHEE) of 50 - 250 MeV are an attractive choice for FLASH radiation therapy (RT). Before VHEE-FLASH RT can be considered for clinical use, a reliable dosimetric and beam monitoring system needs to be developed, able to measure the dose delivered to the patient in real-time and cut off the beam in the event of a machine fault to prevent overdosing the patient. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 3018-3021
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.3018-3021
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Updates, Status and Experiments of CLEAR, the CERN Linear Electron Accelerator for Research
/ Korysko, Pierre (Oxford U.) ; Bateman, Joseph (JAI, UK) ; Corsini, Roberto (CERN) ; Dosanjh, Manjit (CERN) ; Dyks, Luke (CERN) ; Farabolini, Wilfrid (IRFU, Saclay) ; Gilardi, Antonio (CERN) ; Rieker, Vilde (CERN) ; Robertson, Cameron (JAI, UK) ; Sjobak, Kyrre (Oslo U.)
The CERN Linear Accelerator for Research (CLEAR) at CERN is a test facility using a 200 MeV electron beam. In 2020 and 2021, a few hardware upgrades were done: comparators for position measurements were added on components, the in-air experimental area was re-arranged in order to provide more space, a robotic system was built to enable remote samples manipulations for irradiation studies, the BPM reading system was optimized and the laser double-bunch system implemented to allow for a doubling of the electron bunch frequency from 1.5 GHz to 3 GHz. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 3022-3025
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.3022-3025
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Consolidation and Future Upgrades to the CLEAR User Facility at CERN
/ Dyks, Luke A (JAI, UK ; CERN) ; Burrows, Philip N (JAI, UK) ; Corsini, Roberto (CERN) ; Curt, Stephane (CERN) ; Farabolini, Wilfrid (CERN) ; Gamba, Davide (CERN) ; Garolfi, Luca (CERN) ; Gilardi, Antonio (Naples U. ; CERN) ; Granados, Eduardo (CERN) ; Korysko, Pierre (JAI, UK ; CERN) et al.
The CERN Linear Electron Accelerator for Research (CLEAR) at CERN has been operating since 2017 as a dedicated user facility providing beams for a varied range of experiments. CLEAR consists of a 20 m long linear accelerator (linac), able to produce beams from a Cs₂Te photocathode and accelerate them to energies of between 60 MeV and 220 MeV. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IPAC2021 (2021) 2700-2703
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2700-2703
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Status of VHEE Radiotherapy Related Studies at the CLEAR User Facility at CERN
/ Corsini, Roberto (CERN) ; Dyks, Luke (CERN ; Oxford U.) ; Farabolini, Wilfrid (CERN ; IRFU, Saclay) ; Gilardi, Antonio (CERN ; Naples U.) ; Korysko, Pierre (CERN ; Oxford U.) ; Sjobak, Kyrre (Oslo U.)
Despite the increase in interest in using Very High Energy Electron (VHEE) beams for cancer radiotherapy many unanswered questions in its development remain. The use of test facilities will be an essential tool used to solve these issues. [...]
2021 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB044
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.2704
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