CERN Accelerating science

CERN Document Server Намерени са 6 записа  Търсенето отне 0.54 секунди. 
1.
Optical Beam Loss Monitor for RF Cavity Characterisation / Alexandrova, Alexandra (Cockcroft Inst. Accel. Sci. Tech.) ; Brynes, Alexander (Daresbury) ; Devlin, Lee (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Effinger, Ewald (CERN) ; Holzer, Eva Barbara (CERN) ; Jackson, Frank (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Kastriotou, Maria (U. Liverpool (main) ; CERN) ; Scott, Duncan (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Tzoganis, Vasilis (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Welsch, Carsten (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) et al.
Beam Loss Monitors (BLMs) based on optical fibres have been under development for many years as an alternative solution to commonly used methods, such as ionisation chambers. Optical BLMs (oBLMs) maintain standard BLM functionality but can also be used for machine and personal protection. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IBIC2017-WEPWC01 Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WEPWC01
2.
RF Cavity Induced Sensitivity Limitations on Beam Loss Monitors / Kastriotou, M (CERN ; Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Degiovanni, A (CERN) ; Sousa, F S Domingues (CERN) ; Effinger, E (CERN) ; Holzer, E B (CERN) ; Quirante, J L Navarro (CERN) ; del Busto, E N (CERN ; Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Tecker, F (CERN) ; Viganò, W (CERN) ; Welsch, C P (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) et al.
Due to the secondary showers generated when a particle hits the vacuum chamber, beam losses at an accelerator may be detected via radiation detectors located near the beam line. Several sources of background can limit the sensitivity and reduce the dynamic range of a Beam Loss Monitor (BLM). [...]
2015 - 8 p. - Published in : Phys. Procedia 77 (2015) 21-28 Elsevier Open Access article: PDF;
In : International Conference on Laser Applications at Accelerators, Mallorca, Spain, 25 - 27 Mar 2015, pp.21-28
3.
Beam-induced Quench Tests of LHC Magnets / Sapinski, Mariusz (CERN) ; Auchmann, Bernhard (CERN) ; Bär, Tobias (CERN) ; Bartmann, Wolfgang (CERN) ; Bednarek, Mateusz (CERN) ; Bozyigit, Serkan (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) ; Cerutti, Francesco (CERN) ; Chetvertkova, Vera (CERN) et al.
At the end of the LHC Run1 a 48-hour quench-test campaign took place to investigate the quench levels of superconducting magnets for loss durations from nanoseconds to tens of seconds. The longitudinal losses produced extended from one meter to hundreds of meters and the number of lost protons varied from 10⁸ to 10¹³. [...]
2014 - 4 p. - Published in : 10.18429/JACoW-IPAC2014-MOOCB01 Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.MOOCB01
4.
Update on beam loss monitoring at CTF3 for CLIC / Devlin, L J (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Welsch, C P (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Effinger, E (CERN) ; Holzer, E B (CERN) ; del Busto, E N (Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Mallows, S (Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Branger, E (Linkoping U.)
The primary role of the beam loss monitoring (BLM) system for the compact linear collider (CLIC) study is to work within the machine protection system. Due to the size of the CLIC facility, a BLM that covers large distances along the beam line is highly desirable, in particular for the CLIC drive beam decelerators, which would alternatively require some ~40,000 localised monitors. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.WEPC43
5.
Handling 1 MW losses with the LHC collimation system / Salvachua, B (CERN) ; Bruce, R (CERN) ; Carra, F (CERN) ; Cauchi, M (CERN) ; Del Busto, E (CERN) ; Höfle, W (CERN) ; Holzer, E (CERN) ; Jacquet, D (CERN) ; Mirarchi, D (CERN) ; Redaelli, S (CERN) et al.
The LHC superconducting magnets in the dispersion suppressor of IR7 are the most exposed to beam losses leaking from the betatron collimation system and represent the main limitation for the halo cleaning. In 2013, quench tests were performed at 4 TeV to improve the quench limit estimates, which determine the maximum allowed beam loss rate for a given collimation cleaning. [...]
CERN-ACC-2014-0133.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF; External link: Published version from JaCoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.174
6.
Controlling Beamloss at Injection into the LHC / Goddard, B (CERN) ; Alessio, F (CERN) ; Appleby, R B (Manchester U.) ; Bartmann, W (CERN) ; Baudrenghien, P (CERN) ; Boccone, V (CERN) ; Bracco, C (CERN) ; Brugger, M (CERN) ; Cornelis, K (CERN) ; Dehning, B (CERN) et al.
Losses at injection into the superconducting LHC can adversely affect the machine performance in several important ways. The high injected beam intensity and energy mean that precautions must be taken against damage and quenches, including collimators placed close to the beam in the injection regions. [...]
CERN-ATS-2011-274.- Geneva : CERN, 2011 - 4 p. Fulltext: PDF; External link: Published version from JACoW
In : 2nd International Particle Accelerator Conference, San Sebastian, Spain, 4 - 9 Sep 2011, pp.THPS055

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