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Performance of Nanometre-Level Resolution Cavity Beam Position Monitors and Their Application in an Intra-Train Beam Position Feedback System
/ Blaskovic Kraljevic, Neven (JAI, UK) ; Bambade, Philip (Orsay, LAL) ; Bett, Douglas (CERN) ; Bromwich, Talitha (JAI, UK) ; Burrows, Philip (JAI, UK) ; Christian, Glenn (JAI, UK) ; Jang, Si-Won (Korea U.) ; Perry, Colin (JAI, UK) ; Ramjiawan, Rebecca (JAI, UK) ; Tauchi, Toshiaki (KEK, Tsukuba) et al.
A system of three low-Q cavity beam position monitors (BPMs), installed in the interaction point (IP) region of the Accelerator Test Facility (ATF2) at KEK, has been designed and optimised for nanometre-level beam position resolution. The BPMs have been used to provide an input to a low-latency, intra-train beam position feedback system consisting of a digital feedback board and a custom stripline kicker with power amplifier. [...]
2017 - 4 p.
- Published in : 10.18429/JACoW-IBIC2016-TUPG16
Fulltext: PDF;
In : International Beam Instrumentation Conference, Barcelona, Spain, 11 - 15 Sep 2016, pp.TUPG16
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Improving the Performance of an Orbit Feed-forward Based on Quadrupole Motion at the KEK ATF
/ Bett, Douglas (CERN) ; Burrows, Philip (JAI, Oxford) ; Charrondière, Cedric (CERN) ; Christian, Glenn (JAI, Oxford) ; Jeremie, Andrea (Annecy, LAPP) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba) ; Naito, Takashi (KEK, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Patecki, Marcin (CERN) et al.
The high luminosity requirement for a future linear collider sets a demanding limit on the beam quality at the Interation Point (IP). Even the natural motion of the ground could misalign the quadrupole magnets to such an extent that the resulting dipole kicks would require compensation. [...]
CERN-ACC-2017-249.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPIK097
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPIK097
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Progress in Ultra-Low β* Study at ATF2
/ Patecki, Marcin (CERN) ; Bett, Douglas (CERN) ; Kubo, Kiyoshi (KEK, Tsukuba ; Sokendai, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba ; Sokendai, Tsukuba) ; Naito, Takashi (KEK, Tsukuba ; Sokendai, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba ; Sokendai, Tsukuba) ; Plassard, Fabien (CERN) ; Tauchi, Toshiaki (KEK, Tsukuba ; Sokendai, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba ; Sokendai, Tsukuba) ; Tomás, Rogelio (CERN)
A nanometer beam size in the interaction point (IP) is required in case of future linear colliders for achieving the desired rate of particle collisions. KEK Accelerator Test Facility (ATF2), a scaled down implementation of the beam delivery system (BDS), serves for investigating the limits of electron beam focusing at the interaction point. [...]
CERN-ACC-2016-186.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPMB043
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMB043
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Ground Motion Compensation using Feed-forward Control at ATF2
/ Bett, Douglas (CERN) ; Charrondière, Cedric (CERN) ; Jeremie, Andrea (Annecy, LAPP) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba) ; Naito, Takashi (KEK, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Patecki, Marcin (CERN) ; Pfingstner, Juergen (CERN) ; Schulte, Daniel (CERN) et al.
Ground motion compensation using feed-forward control is a novel technique being developed to combat beam imperfections resulting from the vibration-induced misalignment of beamline components. The method is being evaluated experimentally at the KEK Accelerator Test Facility 2 (ATF2). [...]
CERN-ACC-2016-206.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-WEPOR005
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPOR005
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Contribution of Optical Aberrations to Spot-size Increase with Bunch Intensity at ATF2
/ Patecki, Marcin (CERN ; Warsaw U. of Tech.) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba) ; Naito, Takashi (KEK, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Tauchi, Toshiaki (KEK, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba) ; Tomás, Rogelio (CERN) ; White, Glen (SLAC) ; Zimmermann, Frank (CERN)
A primary goal of ATF2 (Accelerator Test Facility) is to demonstrate a low vertical beam size at the interaction point (IP) of about 37 nm. Measurements over the past years indicate that the ATF2 vertical beam size strongly rises with bunch intensity. [...]
CERN-ACC-2015-324.-
2015 - 4 p.
- Published in : (2015) , pp. MOPJE065
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPJE065
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Towards Ultra-Low β* in ATF2
/ Patecki, Marcin (CERN) ; Aloev, Alexander (CERN) ; Bett, Douglas (CERN) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Marín, Eduardo (SLAC) ; Modena, Michele (CERN) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Tauchi, Toshiaki (KEK, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba) ; Tomás, Rogelio (CERN) et al.
The Accelerator Test Facility 2 (ATF2) has already demonstrated the feasibility of Final Focus Systems based on the local chromaticity correction scheme and its focusing capabilities by reaching a vertical beam size at the virtual Interaction Point (IP) of less than 50 nm. The value of the chromaticity in ATF2 is comparable with the expected chromaticity in ILC, but 4 times lower than in a design of CLIC. [...]
CERN-ACC-2015-353.-
2015 - 4 p.
- Published in : (2015) , pp. MOBC1
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOBC1
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Experimental Verification Towards Feed-Forward Ground Motion Mitigation at ATF2
/ Pfingstner, Juergen (CERN) ; Artoos, Kurt (CERN) ; Charrondière, Cedric (CERN) ; Janssens, Stef (CERN) ; Patecki, Marcin (CERN) ; Renier, Yves (CERN) ; Schulte, Daniel (CERN) ; Tomás, Rogelio (CERN) ; Jeremie, Andrea ; Kubo, Kiyoshi et al.
Without counter measures, ground motion effects would deteriorate the performance of future linear colliders to an unacceptable level. An envisioned new ground motion mitigation method (based on feed-forward control) has the potential to improve the performance and to reduce the system cost compared to other proposed methods. [...]
CERN-ACC-2014-388.-
2014 - 4 p.
- Published in : (2014) , pp. MOPP032
Fulltext: PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.MOPP032
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Experimental and Theoretical Progress of Linear Collider Final Focus Design and ATF2 Facility
/ Seryi, Andrei (JAI, UK) ; Tomas, Rogelio (CERN) ; Zimmermann, Frank (CERN) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Tauchi, Toshiaki (KEK, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba) ; Urakawa, Junji (KEK, Tsukuba) ; White, Glen (SLAC) et al.
In this brief overview we will reflect on the process of the design of the linear collider (LC) final focus (FF) optics, and will also describe the theoretical and experimental efforts on design and practical realisation of a prototype of the LC FF optics implemented in the ATF2 facility at KEK, Japan, presently being commissioned and operated..
arXiv:1404.2184.-
2014-03-11 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 740 (2014) 2-5
Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
In : 1st European Advanced Accelerator Concepts Workshop 2013, La Biodola, Isola d'Elba, Italy, 02 - 07 Jun 2013, pp.2-5
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The International Linear Collider Technical Design Report
, v.3.II : accelerator baseline design.
/ Adolphsen, Chris ; Barone, Maura (ed.) ; Barish, Barry (ed.) ; Buesser, Karsten (ed.) ; Burrows, Philip (ed.) ; Carwardine, John (ed.) ; Clark, Jeffrey (ed.) ; Durand, Helene Mainaud (ed.) ; Dugan, Gerry (ed.) ; Elsen, Eckhard (ed.) ; Enomoto, Atsushi (ed.) ; Foster, Brian (ed.) ; Fukuda, Shigeki (ed.) ; Gai, Wei (ed.) ; Gastal, Martin (ed.) ; Geng, Rongli (ed.) ; Ginsburg, Camille (ed.) ; Guiducci, Susanna (ed.) ; Harrison, Mike (ed.) ; Hayano, Hitoshi (ed.) ; Kershaw, Keith (ed.) ; Kubo, Kiyoshi (ed.) ; Kuchler, Victor (ed.) ; List, Benno (ed.) ; Liu, Wanming (ed.) ; Michizono, Shinichiro (ed.) ; Nantista, Christopher (ed.) ; Osborne, John (ed.) ; Palmer, Mark (ed.) ; Paterson, James McEwan (ed.) ; Peterson, Thomas (ed.) ; Phinney, Nan (ed.) ; Ross, Marc (ed.) ; Rubin, David (ed.) ; Seryi, Andrei (ed.) ; Sheppard, John (ed.) ; Solyak, Nikolay (ed.) ; Stapnes, Steinar (ed.) ; Tauchi, Toshiaki (ed.) ; Toge, Nobu (ed.) ; Walker, Nicholas (ed.) ; Yamamoto, Akira (ed.) ; Yokoya, Kaoru (ed.)
The International Linear Collider Technical Design Report (TDR) describes in four volumes the physics case and the design of a 500 GeV centre-of-mass energy linear electron-positron collider based on superconducting radio-frequency technology using Niobium cavities as the accelerating structures [...]
arXiv:1306.6328
ANL-HEP-TR-13-20 ; BNL-100603-2013-IR ; IRFU-13-59 ; Cockcroft-13-10 ; CERN-ATS-2013-037 ; CLNS-13-2085 ; DESY-13-062 ; FERMILAB-TM-2554 ; IHEP-AC-ILC-2013-001 ; ILC-REPORT-2013-040 ; INFN-13-04-LNF ; JAI-2013-001 ; JINR-E9-2013-35 ; JLAB-R-2013-01 ; KEK-Report-2013-1 ; KNU-CHEP-ILC-2013-1 ; LLNL-TR-635539 ; SLAC-R-1004 ; ILC-HiGrade-Report-2013-003.
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Geneva : CERN, 2013. - 339 p.
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ILC Technical Design Report - Fulltext - ILC TDR Vol 3.II - CERN library copies
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