Poster

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2022-02-22
20:54
[PUBDB-2022-01299] Poster
; ; ; et al
Development of a new B-Mapping System for SRF Cavity Vertical Tests
7. Annual MT Meeting, MT, Deutsches Elektronen-Synchrotron (DESY)Hamburg, Deutsches Elektronen-Synchrotron (DESY), Germany, 16 Jun 2021 - 18 Jun 20212021-06-162021-06-18  GO
Magnetic flux trapped in the Niobium bulk material of superconducting radio frequency (SRF) cavities degrades their quality factor and the accelerating gradient. The sensitivity of the surface resistance to trapped magnetic flux is mainly determined by the pre-treatment, the cavity geometry and the Niobium grain size and orientation. [...]
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2022-02-22
20:05
[PUBDB-2022-01298] Poster
; ; ; et al
Development of a New B-Mapping System for SRF Cavity Vertical Tests
2021 International Conference on RF Superconductivity, SRF'21, Deutsches Elektronen-Synchrotron (DESY)Michigan, Deutsches Elektronen-Synchrotron (DESY), USA, 28 Jun 2021 - 2 Jul 20212021-06-282021-07-02  GO
Magnetic flux trapped in the Niobium bulk material of superconducting radio frequency (SRF) cavities degrades their quality factor and the accelerating gradient. The sensitivity of the surface resistance to trapped magnetic flux is mainly determined by the pre-treatment, the cavity geometry and the Niobium grain size and orientation. [...]
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2022-02-21
09:48
[PUBDB-2022-01276] Poster
; ; ; et al
Development and Adjustment of Tools for Superconducting RF Gun Cavities
2021 International Conference of RF Superconductivity, SRF´21, Michigan State UniversityMichigan State University, USA, 28 Jun 2021 - 2 Jul 20212021-06-282021-07-02  GO
For the superconducting radio frequency (SRF), 1.6-cell gun cavities (CV) developed at DESY, a similar fabrication andtreatment process, as for the European XFEL 9-cell cavities is foreseen. The different length and geometry of thesecavities lead to a number of adjustments to existing and the development of new tools. [...]
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2022-02-17
14:36
[PUBDB-2022-01176] Poster
; ; ; et al
Commissioning of a Calibration Device for Second Sound Quench Detection
2021 International Conference of RF Superconductivity, SRF'21, East LansingEast Lansing, USA, 28 Jun 2021 - 2 Jul 20212021-06-282021-07-02  GO
An important part of research and development in the field of superconducting radio frequency technology is the quench detection since these breakdowns of superconductivity often limit the cavity performance. Although the second sound based quench detection is widely used, only few studies dealing with its systematic uncertainties exist. [...]
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2022-02-17
08:29
[PUBDB-2022-01159] Poster
; ; ; et al
SRF Accelerating Modules Repair at DESY
2021 International Conference of RF Superconductivity, SRF´21, Facility for Rare Isotope Beams at Michigan State UniversityFacility for Rare Isotope Beams at Michigan State University, USA, 28 Jun 2021 - 2 Jul 20212021-06-282021-07-02  GO
Eight SRF cavities assembled in an accelerating module represent a building block of the particle linear accelerator based onTESLA SRF technology. DESY has two machines, European XFEL and FLASH. [...]
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2022-02-16
12:00
[PUBDB-2022-01112] Poster

The Higgs through the looking glass.Measurement of the CP quantum number of the Higgs boson in H → $ττ$ decays
30th International Symposium on Lepton Photon Interactions at High Energies, LP2021, Manchester (Online)Manchester (Online), United Kingdom (Online), 10 Jan 2022 - 14 Jan 20222022-01-102022-01-14  GO
The LHC Run 2 data-taking period marked the first measurement of the CP structure of Higgs Yukawa coupling to tau leptons. This measurement is complementary to the ones performed in Higgs production mechanisms improving the understanding of CP violation in the Higgs sector. [...]
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2022-02-01
11:14
[PUBDB-2022-00927] Poster
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Laser starting dynamic of Yb:fiber NALM oscillator
EOS Annual Meeting (EOSAM) 2021, RomeRome, Italy, 13 Sep 2021 - 17 Sep 20212021-09-132021-09-17  GO
Abstract. We report numerical simulation results investigating laser starting dynamics of a compact all-PM fiber oscillator based on a nonlinear amplifying loop mirror (NALM). [...]
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2021-12-30
14:08
[PUBDB-2021-05684] Poster
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Discovering QCD Instantons at the LHC.
50th International Symposium of Multiparticle Dynamics, ISMD2021, ONLINEONLINE, virtual world, 12 Jul 2021 - 16 Jul 20212021-07-122021-07-16  GO
The existence of topological solutions of the Standard Model field equations has been established since the 70ies. In Quantum Chromodynamics, these "Instanton transitions" are known to play a fundamental role in the long-distance behaviour of the theory, yet direct experimental evidence of these phenomena is still lacking. [...]
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2021-12-30
13:19
[PUBDB-2021-05677] Poster
; ; ; et al
DeGeSim and the High Granularity Calorimeter for the CMS experiment at the Large Hadron Collider
Helmholtz AI virtual conference 2021, ONLINEONLINE, virtual world, 14 Apr 2021 - 15 Apr 20212021-04-142021-04-15  GO
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2021-12-29
17:13
[PUBDB-2021-05662] Poster
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A New 2nd Bunch Compression Chicane for the FLASH2020+ Project
12th International Particle Accelerator Conference, IPAC21, CampinasCampinas, Brazil, 24 May 2021 - 28 May 20212021-05-242021-05-28 [10.18429/JACOW-IPAC2021-TUPAB102]  GO
The first stage of the FLASH2020+ project is an upgrade of the FLASH injector beamline. Within this framework, the 2nd bunch compression chicane (BCC) will be completely redesigned. [...]
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