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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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2.
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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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3.
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Tunability Study of the Ultra-Low β* Optics at ATF2 with New Octupole Setup and Tuning Knobs
/ Pastushenko, Andrii (CERN ; IJCLab, Orsay) ; Faus-Golfe, Ángeles (IJCLab, Orsay) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba) ; Naito, Takashi (KEK, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba) ; Tomás García, Rogelio (CERN) ; Yang, Renjun (KEK, Tsukuba)
The main goal of the Accelerator Test Facility 2 (ATF2) is to demonstrate the feasibility of future linear colliders’ final focus systems. The Ultra-low β^{*} optics of ATF2 is designed to have the same chromaticity level as CLIC. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 752-755
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.752-755
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4.
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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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5.
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Probing half $β^*_y$ optics in the Accelerator Test Facility 2
/ Patecki, M (CERN) ; Bett, D (CERN) ; Marin, E (CERN) ; Plassard, F (CERN) ; Tomás, R (CERN) ; Kubo, K (Sokendai, Tsukuba ; KEK, Tsukuba) ; Kuroda, S (Sokendai, Tsukuba ; KEK, Tsukuba) ; Naito, T (Sokendai, Tsukuba ; KEK, Tsukuba) ; Okugi, T (Sokendai, Tsukuba ; KEK, Tsukuba) ; Tauchi, T (Sokendai, Tsukuba ; KEK, Tsukuba) et al.
A nanometer beam size at the interaction point (IP) is required for future linear colliders to achieve the desired rate of particle collisions. KEK Accelerator Test Facility 2 (ATF2), a scaled down implementation of the linear collider beam delivery system, serves for demonstrating the feasibility of the final focus system (FFS). [...]
2016 - 9 p.
- Published in : Phys. Rev. Accel. Beams 19 (2016) 101001
Fulltext: 10.1103_PhysRevAccelBeams.19.101001 - PDF; PhysRevAccelBeams.19 - PDF;
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6.
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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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7.
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ATF2 Ultra-Low IP Betas Proposal
/ Bambade, P (Orsay, LAL) ; Renier, Y (Orsay, LAL) ; Bai, S (Beijing, Inst. High Energy Phys. ; Orsay, LAL) ; Braun, H (CERN) ; Delahaye, J P (CERN) ; Marin, E (CERN) ; Schulte, D (CERN) ; Tomás, R (CERN) ; Zimmermann, F (CERN) ; Gao, J (Beijing, Inst. High Energy Phys.) et al.
WP: 9: Technology for normal conducting higher energy linear accelerators
Task: 9.4: BDS
The CLIC Final Focus System has considerably larger chromaticity than those of ILC and its scaled test machine ATF2. [...]
CERN-ATS-2009-092 ; EuCARD-CON-2009-058 ; CLIC-Note-792.
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2010 - 4.
Fulltext - Fulltext
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8.
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Status of the ATF2 Lattices
/ Marin, E (CERN) ; Tomas, R (CERN) ; Bambade, P (Orsay, LAL) ; Okugi, T (KEK, Tsukuba) ; Tauchi, T (KEK, Tsukuba) ; Terunuma, N (KEK, Tsukuba) ; Urakawa, J (KEK, Tsukuba) ; Seryi, A (Oxford U., JAI) ; White, G (SLAC) ; Woodley, M (SLAC)
The current status for the ATF2 Nominal and Ultra-low lattices are presented in this paper. New lattice designs have been obtained in order to minimise the impact of the last multipolemeasurementswhich have been included into the model. [...]
CERN-ATS-2011-122.-
Geneva : CERN, 2011 - 3 p.
Fulltext: PDF; External link: Published version from JACoW
In : 2nd International Particle Accelerator Conference, San Sebastian, Spain, 4 - 9 Sep 2011, pp.TUPC016
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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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10.
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Scenarios for the ATF2 Ultra-Low Betas Proposal
/ Marin, E (CERN) ; Tomas, R (CERN) ; Parker, B (Brookhaven) ; Bambade, P (Orsay, LAL) ; Kuroda, S (KEK, Tsukuba) ; Okugi, T (KEK, Tsukuba) ; Tauchi, T (KEK, Tsukuba) ; Terunuma, N (KEK, Tsukuba) ; Urakawa, J (KEK, Tsukuba) ; Seryi, A (SLAC) et al.
The currentATF2 Ultra-Low beta proposalwas designed to achieve 20nm vertical IP beam size without considering the multipolar components of the FD magnets. In this paper we describe different scenarios that avoid the detrimental effect of these multipolar errors to the beam size at the interaction point (IP). [...]
CERN-ATS-2010-062; CLIC-Note-837.-
Geneva : CERN, 2010 - 3 p.
Fulltext: PDF; External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.THPE020
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