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Fabrication and high-gradient testing of an accelerating structure made from milled halves
/ Wuensch, Walter (CERN) ; Argyropoulos, Theodoros (CERN ; Valencia U., IFIC) ; Bowden, Gordon (SLAC) ; Catalán Lasheras, Nuria (CERN) ; Dolgashev, Valery (SLAC) ; Esperante Pereira, Daniel (Valencia U., IFIC ; CERN) ; Giansiracusa, Paul (Melbourne U.) ; Giner Navarro, Jorge (CERN ; Valencia U., IFIC) ; Grudiev, Alexej (CERN) ; Haase, Andrew (SLAC) et al.
Accelerating structures made from parts which follow symmetry planes offer many potential advantages over traditional disk-based structures: more options for joining (from bonding to welding), following this more options for material state (heat treated or not) and potentially lower cost since structures can be made from fewer parts. An X-band structure made from milled halves, and with a standard benchmarked CLIC test structure design has been fabricated and high-gradient tested above 95 MV/m..
CERN-ACC-2017-346.-
2017 - 4 p.
- Published in : 10.18429/JACoW-LINAC2016-THPLR003
Fulltext: PDF;
In : 28th Linear Accelerator Conference, East Lansing, Michigan, 25 - 30 Sep 2016, pp.THPLR003
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2.
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Beam-Loading Effect on Breakdown Rate in High-Gradient Accelerating Structures
/ Tecker, Frank (CERN) ; Argyropoulos, Theodoros (CERN ; Valencia U., IFIC) ; Catalán Lasheras, Nuria (CERN) ; Corsini, Roberto (CERN) ; Degiovanni, Alberto (Unlisted, CH ; CERN) ; Gamba, Davide (CERN ; Oxford U., JAI) ; Giner Navarro, Jorge (CERN ; Valencia U., IFIC) ; Grudiev, Alexej (CERN) ; McMonagle, Gerard (CERN) ; Navarro Quirante, Jose Luis (Unlisted, CH ; CERN) et al.
The Compact Linear Collider (CLIC) study for a future electron-positron collider with a center-of-mass energy up to 3 TeV aims for an accelerating gradient of 100 MV/m. The gradient is limited by RF breakdowns, and the luminosity requirements impose a limit on the admissible RF breakdown rate. [...]
CERN-ACC-2016-147; CLIC-Note-1101.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPOR031
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR031
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3.
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Commissioning of XBox-3: A very high capacity X-band test stand
/ Catalán Lasheras, Nuria (CERN) ; Argyropoulos, Theodoros (Valencia U., IFIC) ; Esperante Pereira, Daniel (Valencia U., IFIC) ; Eymin, Cedric (CERN) ; Giner Navarro, Jorge (Valencia U., IFIC) ; McMonagle, Gerard (CERN) ; Rey, Stephane (CERN) ; Solodko, Anastasiya (CERN) ; Syratchev, Igor (CERN) ; Volpi, Matteo (Melbourne U.) et al.
The Compact Linear Collider (CLIC) beam-based acceleration baseline uses high-gradient travelling wave accelerating structures at a frequency of 12 GHz. In order to prove the performance of these structures at high peak power and short pulse width RF, two klystron-based test facilities have been put in operation in the last years. [...]
CERN-ACC-2017-336.-
2017 - 4 p.
- Published in : 10.18429/JACoW-LINAC2016-TUPLR047
Fulltext: PDF;
In : 28th Linear Accelerator Conference, East Lansing, Michigan, 25 - 30 Sep 2016, pp.TUPLR047
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4.
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Design and Construction of a High-Gradient RF Lab at IFIC-Valencia
/ Vnuchenko, Anna (Valencia U., IFIC) ; Argyropoulos, Theodoros (Valencia U., IFIC) ; Blanch Gutiérrez, Cesar (Valencia U., IFIC) ; Catalán Lasheras, Nuria (CERN) ; Esperante Pereira, Daniel (Valencia U., IFIC) ; Faus-Golfe, Angeles (Orsay, LAL) ; Giner Navarro, Jorge (Valencia U., IFIC) ; McMonagle, Gerard (CERN) ; Syratchev, Igor (CERN) ; Wuensch, Walter (CERN)
The IFIC High-Gradient (HG) Radio Frequency (RF) laboratory is designed to host a high-power infrastructure for testing HG S-band normal-conducting RF accelerating structures and has been under construction since 2016. The main objective of the facility is to develop HG S-band accelerating structures and to contribute to the study of HG phenomena. [...]
CERN-ACC-2017-263; CLIC-Note-1110.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-THPIK081
Fulltext: thpik081_2 - PDF; thpik081 - PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPIK081
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5.
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High Gradient Performance of an S-Band Backward Traveling Wave Accelerating Structure for Medical Hadron Therapy Accelerators
/ Vnuchenko, Anna (Valencia U., IFIC) ; Benedetti, Stefano (CERN) ; Blanch Gutiérrez, Cesar (Valencia U., IFIC) ; Catalán Lasheras, Nuria (CERN) ; Esperante Pereira, Daniel (Valencia U., IFIC) ; Faus-Golfe, Angeles (Orsay, LAL) ; Grudiev, Alexej (CERN) ; Koubek, Benjamin (CERN) ; Lucas, Thomas (U. Melbourne (main)) ; McMonagle, Gerard (CERN) et al.
The high-gradient performance of an accelerating structure prototype for a medical proton linac is presented. The structure was designed and built using technology developed by the CLIC collaboration and the target application is the TULIP (Turning Linac for Proton therapy) proposal developed by the TERA foundation. [...]
CERN-ACC-2018-130; CLIC-Note-1148.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-MOPML043
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPML043
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Results of the Beam-Loading Breakdown Rate Experiment at the CLIC Test Facility CTF3
/ Senes, Eugenio (CERN ; Turin U.) ; Argyropoulos, Theodoros (CERN) ; Catalán Lasheras, Nuria (CERN) ; Corsini, Roberto (CERN) ; Gamba, Davide (CERN) ; Giner Navarro, Jorge (CERN ; Valencia U., IFIC) ; Grudiev, Alexej (CERN) ; McMonagle, Gerard (CERN) ; Rajamaki, Robin (CERN ; Aalto U.) ; Stragier, Xavier (CERN) et al.
The RF breakdown rate is crucial for the luminosity performance of the CLIC linear collider. The required breakdown rate at the design gradient of 100 MV/m has been demonstrated, without beam presence, in a number of 12 GHz CLIC prototype structures. [...]
CERN-ACC-2017-140; CLIC-Note-1122.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPAB017
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPAB017
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7.
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Fabrication and testing of a novel S-Band backward travelling wave accelerating structure for proton therapy linacs
/ Benedetti, Stefano (CERN ; Ecole Polytechnique, Lausanne) ; Argyropoulos, Theodoros (CERN) ; Blanch Gutiérrez, Cesar (CERN) ; Catalán Lasheras, Nuria (CERN) ; Degiovanni, Alberto (CERN) ; Esperante Pereira, Daniel (Valencia U., IFIC ; CERN) ; Garlaschè, Marco (CERN) ; Giner Navarro, Jorge (CERN) ; Grudiev, Alexej (CERN) ; McMonagle, Gerard (CERN) et al.
Compact and more affordable, facilities for proton therapy are now entering the market of commercial medical accelerators. At CERN, a joint collaboration between CLIC and TERA Foundation led to the design, fabrication and testing of a high gradient accelerating structure prototype, capable of halving the length of state-of-art light ion therapy linacs. [...]
CERN-ACC-2017-334; CLIC-Note-1136.-
2017 - 3 p.
- Published in : 10.18429/JACoW-LINAC2016-MOPLR048
Fulltext: moplr048 - PDF; moplr048_2 - PDF;
In : 28th Linear Accelerator Conference, East Lansing, Michigan, 25 - 30 Sep 2016, pp.MOPLR048
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8.
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High Power and High Repetition Rate X-band Power Source Using Multiple Klystrons
/ Volpi, Matteo (Melbourne U. ; CERN) ; Boland, Mark (Saskatchewan U., CLS) ; Catalán Lasheras, Nuria (CERN) ; Giansiracusa, Paul (Melbourne U.) ; Grudiev, Alexej (CERN) ; Lucas, Thomas (Melbourne U. ; CERN) ; McMonagle, Gerard (CERN) ; Paszkiewicz, Jan (Oxford U. ; CERN) ; Rassool, Roger (Melbourne U.) ; Serpico, Claudio (Sincrotrone Trieste) et al.
In July 2016, the first X-band test facility operating with two interwoven, 6 MW klystron pulses was commissioned at CERN. Outputting up to 46 MW after pulse compression, the new test stand allows testing of two structures concurrently with repetition rates up to 400 Hz in each line. [...]
CERN-ACC-2018-138.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-THPMK104
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPMK104
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Dark current analysis at CERN’s X-band facility
/ Banon Caballero, David (Valencia U., IFIC ; CERN) ; Boronat, Marça (Valencia U., IFIC ; CERN) ; Catalán Lasheras, Nuria (CERN) ; Faus-Golfe, Angeles (Orsay, LAL) ; Gimeno, Benito (Valencia U., IFIC) ; Lucas, Thomas (Melbourne U. ; CERN) ; Millar, William (Lancaster U. ; CERN) ; Paszkiewicz, Jan (U. Oxford (main) ; CERN) ; Pitman, Sam (CERN) ; Sánchez, Victoria (Valencia U., IFIC ; CERN) et al.
Dark current is particularly relevant during operation in high-gradient linear accelerators. Resulting from the capture of field emitted electrons, dark current produces additional radiation that needs to be accounted for in experiments. [...]
CERN-ACC-2019-212; CERN-ACC-2019-270; CLIC-Note-1190.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPRB059
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPRB059
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10.
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Design, fabrication, and high-gradient testing of an $X$-band, traveling-wave accelerating structure milled from copper halves
/ Argyropoulos, Theodoros (CERN) ; Catalan-Lasheras, Nuria (CERN) ; Grudiev, Alexej (CERN) ; Mcmonagle, Gerard (CERN) ; Rodriguez-Castro, Enrique (CERN) ; Syrachev, Igor (CERN) ; Wegner, Rolf (CERN) ; Woolley, Ben (CERN) ; Wuensch, Walter (CERN) ; Zha, Hao (CERN) et al.
A prototype 11.994 GHz, traveling-wave accelerating structure for the Compact Linear Collider has been built, using the novel technique of assembling the structure from milled halves. The use of milled halves has many advantages when compared to a structure made from individual disks. [...]
2018 - 11 p.
- Published in : Phys. Rev. Accel. Beams 21 (2018) 061001
Fulltext: PDF;
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