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1.
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Resonant spin depolarization at the test facility KARA: overview of recent efforts
/ Blomley, Edmund (KIT, Karlsruhe) ; Müller, Anke-Susanne (KIT, Karlsruhe) ; Härer, B (KIT, Karlsruhe) ; Huttel, Erhard (KIT, Karlsruhe) ; Zimmermann, Frank (CERN) ; Keintzel, Jacqueline (CERN) ; Steinmann, Johannes (KIT, Karlsruhe) ; Gethmann, Julian (KIT, Karlsruhe) ; Ruprecht, Robert (KIT, Karlsruhe)
The Karlsruhe research accelerator KARA offers a setup to measure the beam energy with resonant spin depolarization. The depolarization is excited by the stripline kickers of the bunch-by-bunch feedback system and the resonant frequency is measured via change in Touschek lifetime. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPG51
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG51
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2.
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Beam Instrumentation Challenges for FCC-ee
/ Wendt, Manfred (CERN) ; Carideo, Emanuela (CERN) ; Härer, Bastian (KIT, Karlsruhe, IPE) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Mitsuhashi, Toshiyuki (Sokendai, Tsukuba) ; Müller, Anke-Susanne (KIT, Karlsruhe, IPE) ; Niehues, Gudrun (KIT, Karlsruhe, IPE) ; Reißig, Micha (KIT, Karlsruhe, IPE) et al.
For the accelerator-based future of high energy physics at the energy frontier, CERN started to investigate a 92 km circumference Future Circular Collider (FCC), as e⁺/e⁻ collider the FCC-ee will operate at beam energies up to 182.5 GeV. Beside the machine operational aspects, beam instrumentation will play a key role in verifying and optimizing the machine to achieve the ambitious beam parameters and quality. [...]
2023 - 10 p.
- Published in : JACoW eeFACT 2022 (2023) 208-217
Fulltext: PDF;
In : 65th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+ e- Colliders (eeFACT2022), INFN, Frascati, Italy, 12 - 16 Sep 2022, pp.208-217
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3.
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Magnetic Characterization of a Superconducting Transverse Gradient Undulator for Compact Laser Wakefield Accelerator-Driven FELs
/ Damminsek, Kantaphon (KIT, Karlsruhe, TTP) ; Bernhard, Axel (KIT, Karlsruhe, TTP) ; Cha, Hyuk Jin (KIT, Karlsruhe, TTP) ; Grau, Andreas (KIT, Karlsruhe) ; Müller, Anke-Susanne (KIT, Karlsruhe) ; Ning, Maisui (KIT, Karlsruhe) ; Richter, Sebastian (CERN) ; Rossmanith, Robert (DESY) ; Tong, Yimin (KIT, Karlsruhe)
A transverse gradient undulator (TGU) is a key component compensating for the relatively large energy spread of Laser Wakefield Accelerator (LWFA)-generated electron beams for realizing a compact Free Electron Laser (FEL). A superconducting TGU with 40 periods has been fabricated at the Karlsruhe Institute of Technology (KIT). [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1772-1775
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1772-1775
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4.
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Status and Powering Test Results of HTS Undulator Coils at 77 K for Compact FEL Designs
/ Richter, Sebastian (CERN ; KIT, Karlsruhe, EKP) ; Ballarino, Amalia (CERN) ; Bernhard, Axel (KIT, Karlsruhe, EKP) ; Müller, Anke-Susanne (KIT, Karlsruhe, EKP) ; Nes, Thomas (CERN) ; Schoerling, Daniel (CERN)
The production of low emittance positron beams for future linear and circular lepton colliders, like CLIC or FCC-ee, requires high-field damping wigglers. Just as compact free-electron lasers (FELs) require high-field but as well short-period undulators to emit high energetic, coherent photons. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2726-2729
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2726-2729
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5.
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Bending Radius Limits of Different Coated REBCO Conductor Tapes - An Experimental Investigation with Regard to HTS Undulators
/ Richter, Sebastian C (CERN ; KIT, Karlsruhe, Dept. Phys.) ; Bernhard, Axel (KIT, Karlsruhe, Dept. Phys.) ; Drechsler, Antje (KIT, Karlsruhe, Dept. Phys.) ; Müller, Anke-Susanne (KIT, Karlsruhe, Dept. Phys.) ; Ringsdorf, Bernd (KIT, Karlsruhe, Dept. Phys.) ; Schlachter, Sonja I (KIT, Karlsruhe, Dept. Phys.) ; Schoerling, Daniel (CERN)
Compact FELs require short-period, high-field undulators in combination with compact accelerator structures to produce coherent light up to X-rays. Likewise, for the production of low emittance positron beams for future lepton colliders, like CLIC or FCC-ee, high-field damping wigglers are required. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC '21 (2021) 3837-3840
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3837-3840
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The Future Circular Collider Study
/ Zimmermann, Frank (CERN) ; Benedikt, Michael (CERN) ; Müller, Anke-Susanne (KIT, Karlsruhe)
At the end of 2018, a large worldwide collaboration, with contributors from more than 350 institutes completed the conceptual design of the Future Circular Collider (FCC), a ~100 km accelerator infrastructure linked to the existing CERN complex, that would open up the way to the post-LHC era in particle physics. We present an overview of the two main accelerator options considered in the design study, namely the lepton collider (FCC-ee), serving as highest-luminosity Higgs and electroweak factory, and the 100-TeV energy-frontier hadron collider (FCC-hh), along with the ongoing technological R&D; efforts and the planned next steps. [...]
CERN-ACC-2020-035.-
2020 - 5 p.
- Published in : JACoW IPAC 2020 (2020) MOVIR01
Fulltext: PDF;
In : 11th International Particle Accelerator Conference, Caen, France, 10 - 15 May 2020, pp.MOVIR01
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7.
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Status of the Horizon 2020 EuPRAXIA conceptual design study
/ Weikum, Maria (DESY) ; Akhter, Tahmina (INFN, Naples ; U. Naples (main)) ; Alesini, David (Frascati) ; Alexandrova, Alexandra (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Anania, Maria Pia (Frascati) ; Andreev, Nikolay (Moscow, Inst. High Temp. ; Moscow, MIPT) ; Andriyash, Igor (Weizmann Inst.) ; Aschikhin, Alexander (DESY) ; Aßmann, Ralph (DESY) ; Audet, Thomas (LPGP, Orsay) et al.
The Horizon 2020 Project EuPRAXIA (European Plasma Research Accelerator with eXcellence In Applications) is producing a conceptual design report for a highly compact and cost-effective European facility with multi-GeV electron beams accelerated using plasmas. EuPRAXIA will be set up as a distributed Open Innovation platform with two construction sites, one with a focus on beam-driven plasma acceleration (PWFA) and another site with a focus on laser-driven plasma acceleration (LWFA). [...]
CERN-ACC-2019-225.-
2019 - 5 p.
- Published in : 10.18429/JACoW-IPAC2019-THPGW026
Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPGW026
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8.
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Characterisation of the radiation hardness of cryogenic bypass diodes for the HL-LHC inner triplet quadrupole circuit
/ Wollmann, Daniel (CERN) ; Bernhard, Axel (KIT, Karlsruhe) ; Cangialosi, Chiara (CERN) ; Cerutti, Francesco (CERN) ; D'Angelo, Giorgio (CERN) ; Danzeca, Salvatore (CERN) ; Denz, Reiner (CERN) ; Favre, Mathieu (CERN) ; Garcia Alia, Ruben (CERN) ; Hagedorn, Dietrich (CERN) et al.
The powering layout of the new HL-LHC Nb$_3$Sn triplet circuits is the use of cryogenic bypass diodes, where the diodes are located inside an extension to the magnet cryostat, operated in superfluid helium and exposed to radiation. Therefore, the radiation hardness of different type of bypass diodes has been tested at low temperatures in CERN’s CHARM irradiation facility during the operational year 2018. [...]
CERN-ACC-2019-265.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPTS067
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPTS067
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9.
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Beam impact experiment of 440 GeV/p protons on superconducting wires and tapes in a cryogenic environment
/ Will, Andreas (KIT, Karlsruhe ; CERN) ; Bastian, Yan (CERN) ; Bernhard, Axel (KIT, Karlsruhe) ; Bonura, Marco (U. Geneva (main)) ; Bordini, Bernardo (CERN) ; Bortot, Lorenzo (CERN) ; Favre, Mathieu (CERN) ; Lindstrom, Bjorn (CERN) ; Mentink, Matthijs (CERN) ; Monteuuis, Arnaud (CERN) et al.
The superconducting magnets used in high energy particle accelerators such as CERN’s LHC can be impacted by the circulating beam in case of specific failure cases. This leads to interaction of the beam particles with the magnet components, like the superconducting coils, directly or via secondary particle showers. [...]
CERN-ACC-2019-266.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPTS066
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPTS066
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10.
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Commissioning Status of FLUTE
/ Malygin, Anton (KIT, Karlsruhe) ; Bernhard, Axel (KIT, Karlsruhe) ; Bründermann, Erik (KIT, Karlsruhe) ; Böhm, Andreas (KIT, Karlsruhe) ; Funkner, Stefan (KIT, Karlsruhe) ; Križnar, Igor (KIT, Karlsruhe) ; Marsching, Sebastian (KIT, Karlsruhe) ; Mexner, Wolfgang (KIT, Karlsruhe) ; Mochihashi, Akira (KIT, Karlsruhe) ; Müller, Anke-Susanne (KIT, Karlsruhe) et al.
FLUTE (Ferninfrarot Linac- Und Test-Experiment) will be a new compact versatile linear accelerator at the KIT. Its primary goal is to serve as a platform for a variety of accelerator studies as well as to generate strong ultra-short THz pulses for photon science. [...]
2018 - 3 p.
- Published in : 10.18429/JACoW-IPAC2018-THPMF068
External link: Fulltext
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPMF068
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