CERN Accelerating science

ATS Reports

Machine-induced Background Simulation Studies for LHC Run 1, Run 2 and HL-LHC / Kwee-Hinzmann, Regina (Royal Holloway. University of London) ; Bregliozzi, Giuseppe (CERN) ; Bruce, Roderik (CERN) ; Cerutti, Francesco (CERN) ; Esposito, Luigi Salvatore (A.D.A.M. Applications of Detectors and accelerators to Medicine (CH)) ; Gibson, Stephen (University of London (GB)) ; Lechner, Anton (CERN) ; Garcia Morales, Hector (University of London (GB)) ; Yin Vallgren, Christina (CERN)
The study of machine-induced background to the experiments is vital for several reasons [...]
- 2017. - 95 p.

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MD#1182: Calibration of diamond particle detectors in IP6 / Valette, Matthieu (CERN) ; Wollmann, Daniel (CERN) ; Lindstrom, Bjorn Hans Filip (Uppsala University (SE)) ; Wiesner, Christoph (CERN)
In case of an asynchronous beam dump with a fully filled LHC machine it is expected that all standard ionisation chamber Beam Loss Monitors (IC BLM) around the LHC dumping region in IP6 will be saturated. [...]
- 2017. - 8 p.
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Finite Element Model for Thermal-Structural analysis of CLIC Lab Module type 0#2 / Moilanen, Antti (Helsinki University of Technology (FI)) ; Aicheler, Markus (Helsinki Institute of Physics (FI)) ; Vamvakas, Alex (National Technical Univ. of Athens (GR)) ; Vainola, Jukka Ilmari (Helsinki Institute of Physics (FI)) ; Doebert, Steffen (CERN)
Temperature changes lead to unwanted thermo-mechanical deformations in the components of the Compact Linear Collider (CLIC) module. [...]
CERN-ACC-2017-0016 ; CLIC-Note-1073.
- 2017. - 18 p.
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Linear coupling dependence on intensity and a next step towards a feedback (MD1850) / Persson, Tobias Hakan Bjorn (CERN) ; Baud, Guillaume (CERN) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Gasior, Marek (CERN) ; Giovannozzi, Massimo (CERN) ; Olexa, Jakub (CERN) ; Tomas Garcia, Rogelio (CERN) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) ; Valuch, Daniel (CERN)
Transverse coupling has proven to be an important variable to control beam dynamics and performance in the LHC. [...]
- 2017. - 11 p.
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Large Hadron Collider momentum calibration and accuracy / Wenninger, Jorg (CERN) ; Todesco, Ezio (CERN)
As a result of the excellent quality of the Large Hadron Collider (LHC) experimental detectors and the accurate calibration of the luminosity at the LHC, uncertainties on the LHC beam energy may contribute significantly to the measurement errors on certain observables unless the relative uncertainty is well below 1%. [...]
- 2017. - 14 p.
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Ferrite Characterization for the Design of an Accelerating Cavity With Perpendicular Biasing / Eberhardt, Johannes (CERN) ; Caspers, Fritz (CERN) ; Vollinger, Christine (CERN)
A perpendicular biased ferrite loaded accelerating cavity is studied for a possible upgrade of the CERN accelerator complex which could help to overcome the intensity limitations occurring at the SPS injection. The required accelerating cavity should cover a frequency range of 18 to 40 MHz with high cavity Q, which poses high demands on the ferrite material properties. [...]
CERN-ACC-2017-0006.- Geneva : CERN, 2016 - 6 p. - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 693-698 Fulltext: PDF;

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ATS MD’s in 2016 / Fartoukh, Stephane (CERN) ; Albert, Markus (CERN) ; Le Borgne, Yannick (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Garcia-Tabares Valdivieso, Ana (Ministere des affaires etrangeres et europeennes (FR)) ; Fuchsberger, Kajetan (CERN) ; Giachino, Rossano (CERN) et al.
This report presents a summary of the Achromatic Telescopic Squeezing (ATS) scheme related activities which took place in 2016, where a new generation of ATS pre-squeezed and telescopic optics was successfully probed, namely: (i) down to a beta* of 10 cm with pilot bunches, and (ii) with more emphasis at intermediate beta* values of 40 cm or 33 cm where collisions were established with nominal bunches, the triplet aperture was measured and collimation measurements with pre-squeezed or moderately telescopic ATS optics were conducted..
- 2016. - 25 p.
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Space Charge Modules for PyHEADTAIL / Oeftiger, Adrian (CERN & EPFL Lausanne) ; Hegglin, Stefan Eduard (Eidgenoessische Tech. Hochschule Zuerich (CH))
PyHEADTAIL is a 6D tracking tool developed at CERN to simulate collective effects. [...]
- 2016. - 6 p.

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Cam Mover Alignment System positioning with the Wire Positioning with the Wire Position Sensor Feedback for CLIC / Kemppinen, Juha (Eidgenoessische Technische Hochschule Zuerich (CH)) ; Mainaud Durand, Helene (CERN)
Compact Linear Collider (CLIC) is a study of an electron-positron collider with nominal energy of 3 TeV and luminosity of 2 ∙ 1034 cm-2s-1. [...]
CERN-ACC-2016-0339 ; CLIC-Note-1072.
- 2016. - 6 p.
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Design and High Power Measurements of a 3 GHz Rotary Joint for Medical Applications / Degiovanni, Alberto (A.D.A.M. Applications of Detectors and accelerators to Medicine (CH)) ; Benedetti, Stefano (Ecole Polytechnique Federale de Lausanne (CH)) ; Garlasche, Marco (CERN) ; Giner-Navarro, Jorge (CERN) ; Magagnin, Paolo (TERA Foundation (IT)) ; Mcmonagle, Gerard (CERN) ; Syratchev, Igor (CERN) ; Wuensch, Walter (CERN)
The TUrning LInac for Protontherapy (TULIP) project requires the transport of RF power from modulator/klystron systems at rest on the floor to the linac structures mounted on a rotating gantry, via a waveguide system that can operate over a range of angles of rotation. [...]
CERN-ACC-2016-0338 ; CLIC-Note-1071.
- 2016. - 9 p.
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