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CERN Document Server 7 records found  Search took 0.61 seconds. 
1.
Radiation Shielding Design for the X-Band Laboratory for Radio-Frequency Test Facility - X-Lab - at the University of Melbourne / Volpi, Matteo (Melbourne U.) ; Banon-Caballero, David (Valencia U., IFIC) ; Boronat, Marça (CERN) ; Catalán Lasheras, Nuria (CERN) ; Dowd, Rohan (ANSTO, Menai) ; Rassool, Roger (Melbourne U.) ; Sheehy, Suzanne (Melbourne U.) ; Taylor, Geoffrey (Melbourne U.) ; Williams, Scott (Melbourne U.)
Here we report radiation dose estimates calculated for the X-band Laboratory for Accelerators and Beams (X-LAB) under construction at the University of Melbourne (UoM). The lab will host a CERN X-band test stand containing two 12 GHz 6 MW klystron amplifiers. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 724-727 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.724-727
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2.
The Southern Hemisphere’s First X-Band Radio-Frequency Test Facility at the University of Melbourne / Volpi, Matteo (Melbourne U.) ; Boland, Mark J (Saskatchewan U., CLS) ; Catalán Lasheras, Nuria (CERN) ; Dowd, Rohan (ASP, Melbourne) ; González Antón, Sergio (CERN) ; McMonagle, Gerard (CERN) ; Rassool, Roger P (Melbourne U.) ; Sheehy, Suzanne L (Melbourne U.) ; Stapnes, Steinar (CERN) ; Taylor, Geoffrey N (Melbourne U.) et al.
The first Southern Hemisphere X-band Laboratory for Accelerators and Beams (X-LAB) is under construction at the University of Melbourne, and it will operate CERN X-band test stand containing two 12GHz 6MW klystron amplifiers. By power combination through hybrid couplers and the use of pulse compressors, up to 50 MW of peak power can be sent to any of 2 test slots at pulse repetition rates up to 400 Hz. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC '21 (2021) 3588-3591 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3588-3591
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3.
Initial Testing of Techniques for Large Scale Rf Conditioning for the Compact Linear Collider / Lucas, Thomas (Melbourne U. ; CERN) ; Boland, Mark (Saskatchewan U., CLS) ; Catalán Lasheras, Nuria (CERN) ; Giansiracusa, Paul (Melbourne U.) ; Grudiev, Alexej (CERN) ; Lefèvre, Thibaut (CERN) ; McMonagle, Gerard (CERN) ; Paszkiewicz, Jan (Oxford U. ; CERN) ; Rassool, Roger (Melbourne U.) ; Serpico, Claudio (Sincrotrone Trieste) et al.
Nominal operating conditions for the Compact Linear Collider (CLIC) 380 GeV requires 72 MV/m loaded accelerating gradients for a 180 ns flat-top pulse. Achieving this requires extensive RF conditioning which past tests have demonstrated can take several months per structure, when conditioned at the nominal repetition rate of 50 Hz. [...]
CERN-ACC-2018-137; CLIC-Note-1144.- 2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-THPMK103 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPMK103
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4.
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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5.
Dependency of the capture of field emitted electron on the phase velocity of a high-frequency accelerating structure / Lucas, Thomas Geoffrey ; Argyopolous, Theodorous ; Boland, Mark James ; Catalan-Lasheras, Nuria ; Rassool, Roger Paul ; Serpico, Claudio ; Volpi, Matteo ; Wuensch, Walter (CERN)
Surface electric fields within high gradient linear accelerators can exceed 200 MV/m and lead to field emitted (FE) electrons entering the structure. When the accelerating field conditions permit, these FE electrons can become captured in the RF fields and be transported through the accelerating structure as a dark current. [...]
2019 - 7 p. - Published in : Nucl. Instrum. Meth. A 914 (2019) 46-52 Fulltext (Open Access version from publisher): PDF;
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6.
High power testing of a prototype clic structure: Td26cc r05 n3 / Lucas, Thomas Geoffrey (University of Melbourne (AU)) ; Volpi, Matteo (University of Melbourne (AU)) ; Giansiracusa, Paul Joseph (University of Melbourne (AU)) ; Rassool, Roger Paul (Australian Synchrotron (AU)) ; Argyropoulos, Theodoros (CERN) ; Bursali, Hikmet (CERN) ; Catalan-Lasheras, Nuria (CERN) ; Grudiev, Alexej (CERN) ; Mcmonagle, Gerard (CERN) ; Syrachev, Igor (CERN) et al.
Testing of high gradient accelerating structure prototypes for the Compact Linear Collider is ongoing at CERN. [...]
CERN-ACC-2018-0030 ; CLIC-Note-1080. - 2018 - 9.
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7.
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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