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CERN Accelerating science

CERN Document Server 25 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 1.31 sekúnd. 
1.
Photoelectric charging and lofting of dust particles on a conducting surface with external electric fields / Taylor, Kelyan (U. Colorado, Boulder) ; Elliott, Amanda (Rochester U.) ; Wang, Xu (U. Colorado, Boulder) ; Horanyi, Mihaly (U. Colorado, Boulder) ; Schmidt, Rudiger (Darmstadt, Tech. U.) ; Wollmann, Daniel (CERN) ; Wiesner, Christoph (CERN) ; Belanger, Philippe (TRIUMF)
We present a laboratory study of photoelectric charging of dust particles and their lofting on a conducting surface in the presence of external electric fields. Insulating particles with diameter <45 μm are dispersed on a conducting surface exposed to ultraviolet (UV) light. [...]
2024 - 6 p. - Published in : Phys. Plasmas 31 (2024) 073703 Fulltext: PDF;
2.
Workshop on Dust Charging and Beam-Dust Interaction in Particle Accelerators / Blaszkiewicz, Milosz Robert (CERN) ; Felsberger, Lukas (CERN) ; Hernalsteens, Cedric (CERN) ; Heron, Jack (CERN) ; Obermair, Christoph (Graz University of Technology (AT)) ; Rosaz, Guillaume Jonathan (CERN) ; Schmidt, Rudiger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; Uythoven, Jan (CERN) ; Wiesner, Christoph (CERN) ; Wollmann, Daniel (CERN) et al.
The effects of beam-dust interactions have been observed in particle accelerators and have been studied as early as the 1960s. [...]
CERN-ACC-NOTE-2023-0025.
- 2023.
Full text
3.
Conclusion of the Electrical Conformity Assessment Panel on the Installation of the MBH Magnet S2 in the LHC / Siemko, Andrzej (CERN) ; Devred, Arnaud (CERN) ; Rodriguez Mateos, Felix (CERN) ; Schmidt, Rudiger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; Verweij, Arjan (CERN) ; Wenninger, Jorg (CERN)
In this report we assess the feasibility for installation of the $Nb_{3}$Sn MBH S2 magnet in the LHC and conclude on possible performance limitations..
CERN-ACC-2021-013.
- 2021. - 26 p.
4.
PROTON-BEAM MACRO-PARTICLE INTERACTION: BEAM DUMPS AND QUENCHES / Auchmann, Bernhard (CERN) ; Baer, Thomas Martin ; Lechner, Anton (CERN) ; Riegler, Werner (CERN) ; Rowan, Scott ; Schindler, Heinrich (CERN) ; Schmidt, Rudiger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; Zimmermann, Frank (CERN)
We derive a model for the time evolution of beam losses due to macro particles falling into the LHC proton beam. [...]
CERN-ACC-NOTE-2020-0041.
- 2014. - 19 p.
Access to fulltext
5.
First Experimental Results on Damage Limits of Superconducting Accelerator Magnet Components Due to Instantaneous Beam Impact / Raginel, Vivien (CERN) ; Bonura, Marco (Geneva U.) ; Kleiven, David (Norwegian U. Sci. Tech.) ; Kulesz, Karolina (CERN) ; Mentink, Matthias (CERN) ; Senatore, Carmine (Geneva U.) ; Schmidt, Rudiger (CERN) ; Siemko, Andrzej (CERN) ; Verweij, Arjan (CERN) ; Will, Andreas (CERN) et al.
The energy stored in the particle beams of an accelerator such as CERNs LHC is substantial and requires a complex machine protection system to protect the equipment from damage. Despite efficient beam absorbers, several failure modes can lead to beam impact on superconducting magnets. [...]
2018 - 10 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 8800310
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.8800310
6.
MD#2889: 16L2 Event Dynamics and UFO Nature Investigation / Lindstrom, Bjorn Hans Filip (Uppsala University (SE)) ; Apollonio, Andrea (CERN) ; Dziadosz, Martyna (AGH University of Science and Technology (PL)) ; Gorzawski, Arkadiusz (University of Malta (MT)) ; Grob, Laura Katharina ; Holzer, Eva Barbara (CERN) ; Lechner, Anton (CERN) ; Medvedeva, Tatiana (Russian Academy of Sciences (RU)) ; Schmidt, Rudiger (Technische Universitaet Darmstadt (DE)) ; Valette, Matthieu et al.
Micrometer sized particles (UFOs) entering the beam are a known cause of localized beam losses since the beginning of high intensity beam operation, however the origin of these particles is not fully known [...]
CERN-ACC-2019-0032.
- 2019. - 5 p.
Full text
7.
MD#1828: Beam scraping in case of non-working LBDS / Valette, Matthieu ; Lindstrom, Bjorn Hans Filip (Uppsala University (SE)) ; Mereghetti, Alessio (CERN) ; Schmidt, Rudiger (Technische Universitaet Darmstadt (DE)) ; Solfaroli Camillocci, Matteo (CERN) ; Uythoven, Jan (CERN) ; Valuch, Daniel (CERN) ; Wenninger, Jorg (CERN) ; Wollmann, Daniel (CERN) ; Zerlauth, Markus (CERN)
In the very unlikely event of a non-working beam dumping system in the LHC, the up to 360 MJ (680 MJ for HiLumi) of beam energy per beam can be dissipated in the collimation system as a last alternative to an extraction into the beam dump. [...]
CERN-ACC-2019-0002.
- 2019. - 6 p.
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8.
Concept of a Machine Protection System for the High-Energy LHC / Raginel, Vivien ; Schmidt, Rudiger (Technische Universitaet Darmstadt (DE)) ; Wollmann, Daniel (CERN)
The High-Energy LHC (HE-LHC) is setting new precedents in stored energy in both, the superconducting magnet system (∼ 20 GJ) and the beams (1.34 GJ) as compared to LHC and the LHC upgrade to increase the luminosity (HL-LHC). [...]
CERN-ACC-2018-0010.
- 2018. - 9 p.
Full text
9.
MD2036: UFO Dynamics Studies and UFO Fast Detection / Belanger, Philippe (Universite de Montreal (CA)) ; Apollonio, Andrea (CERN) ; Valette, Matthieu (CERN) ; Lindstrom, Bjorn Hans Filip (Uppsala University (SE)) ; Grob, Laura Katharina ; Schmidt, Rudiger (Technische Universitaet Darmstadt (DE)) ; Wollmann, Daniel (CERN)
UFOs are one of the remaining unknown related to LHC operation. [...]
CERN-ACC-2018-0009.
- 2017. - 11 p.
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10.
MD#1826: Measurement of Quench Heater vertical kick / Valette, Matthieu (CERN) ; Wollmann, Daniel (CERN) ; Lindstrom, Bjorn Hans Filip (Uppsala University (SE)) ; Bortot, Lorenzo (CERN) ; Fernandez Navarro, Alejandro (CERN) ; Schmidt, Rudiger (Technische Universitaet Darmstadt (DE)) ; Verweij, Arjan (CERN)
Following the observation of vertical orbit oscillations of the LHC beam between the detection of a (beam induced) quench of an LHC main dipole and the beam dump, a study was started to verify that the orbit distortions are caused by the firing of the quench heaters (QH). [...]
CERN-ACC-2018-0007.
- 2018. - 8 p.
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CERN Document Server : 25 záznamov nájdených   1 - 10ďalšíkoniec  skoč na záznam:
Viď tiež: podobné mená autorov
568 SCHMIDT, R
568 Schmidt, R
1 Schmidt, R D
2 Schmidt, R M
1 Schmidt, R S
39 Schmidt, R W
14 Schmidt, R.
2 Schmidt, R.S.
6 Schmidt, Rainer
12 Schmidt, Ralf
4 Schmidt, Rebecca
1 Schmidt, Rebekka
2 Schmidt, Reiner
1 Schmidt, Renate
2 Schmidt, Renate A
1 Schmidt, Rene
14 Schmidt, Richard
1 Schmidt, Richard F
1 Schmidt, Richard N
366 Schmidt, Ringo
5 Schmidt, Ringo Sebastian
6 Schmidt, Robert
1 Schmidt, Robert D
4 Schmidt, Robert W
1 Schmidt, Roland
1 Schmidt, Rolf F
1 Schmidt, Rudolf
43 Schmidt, Ruediger
29 Schmidt, Rüdiger
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