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CERN Document Server Encontrados 19 registros  1 - 10siguiente  ir al registro: La búsqueda tardó 0.63 segundos. 
1.
Feedback Configuration Tools for LHC Low Level RF System / Van Winkle, D (SLAC) ; Fox, J (SLAC) ; Mastorides, T (SLAC) ; Rivetta, C (SLAC) ; Baudrenghien, P (CERN) ; Butterworth, A (CERN) ; Molendijk, J (CERN)
The LHC Low Level RF Sys­tem (LLRF) is a com­plex mul­ti-VME crate sys­tem which is used to reg­u­late the su­per­con­duc­tive cav­i­ty gap volt­age as well as to lower the impedance as seen by the beam through low la­ten­cy feed­back. This sys­tem con­tains mul­ti­ple loops with sev­er­al pa­ram­e­ters which must be set be­fore the loops can be closed. [...]
SLAC-PUB-13613.- 2010 Published versiom from the proceedings: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP098
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2.
RF system models for the CERN Large Hadron Collider with application to longitudinal dynamics / Mastorides, T (SLAC) ; Rivetta, C (SLAC) ; Fox, J D (SLAC) ; Van Winkle, D (SLAC) ; Baudrenghien, P (CERN)
2010 - Published in : Phys. Rev. Spec. Top. Accel. Beams 13 (2010) 102801
- Published in : Phys. Rev. Spec. Top. Accel. Beams 14 (2011) 029901 (Erratum) APS Published version, local copy: PDF;
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3.
Commissioning of the LHC Low Level RF System Remote Configuration Tools / Van Winkle, Daniel (SLAC) ; Fox, John (SLAC) ; Mastorides, Themis (SLAC) ; Rivetta, Claudio (SLAC) ; Baudrenghien, Philippe (CERN) ; Butterworth, Andrew (CERN) ; Molendijk, John (CERN)
The LHC Low Level RF system (LLRF) is a complex multi-loop system used to regulate the superconductive cavity gap voltage as well as to reduce the impedance presented by RF stations to the beam. The RF system can have a profound impact on the stability of the beam; a mis-configured RF system has the potential of causing longitudinal instabilities, beam diffusion and beam loss [...]
2010 External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPEA063
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4.
LHC Beam Diffusion Dependence on RF Noise: Models and Measurements / Mastorides, Themis (SLAC) ; Fox, John (SLAC) ; Rivetta, Claudio (SLAC) ; Van Winkle, Daniel (SLAC) ; Baudrenghien, Philippe (CERN) ; Butterworth, Andrew (CERN) ; Molendijk, John (CERN)
Radio Frequency (RF) accelerating system noise and non-idealities can have detrimental impact on the LHC performance through longitudinal motion and longitudinal emittance growth. A theoretical formalism has been developed to relate the beam and RF loop dynamics with the bunch length growth [...]
2010 External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPEA062
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5.
SPS Ecloud Instabilities - Analysis of machine studies and implications for Ecloud Feedback / Fox, JD (SLAC) ; Bullitt, A (SLAC) ; Mastorides, T (SLAC) ; Ndabashimiye, G (SLAC) ; Rivetta, C (SLAC) ; Turgut, O (SLAC) ; Van Winkle, D (SLAC) ; Byrd, J (LBL, Berkeley) ; Furman, M (LBL, Berkeley) ; Vay, JL (LBL, Berkeley) et al.
The SPS at high intensities exhibits transverse singlebunch instabilities with signatures consistent with an Ecloud driven instability.[1] We present recent MD data from the SPS, details of the instrument technique and spectral analysis methods which help reveal complex vertical motion that develops within a subset of the injected bunch trains. The beam motion is detected via wideband exponential taper striplines and delta-sigma hybrids. [...]
CERN-ATS-2010-193.- Geneva : CERN, 2010 - 4 p. Fulltext: PDF; External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.WEPEB052
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6.
Feedback Techniques and SPS Ecloud Instabilities - Design Estimates / Fox, J D (SLAC) ; Mastorides, T (SLAC) ; Ndabashimiye, G (SLAC) ; Rivetta, C H (SLAC) ; Van Winkle, D (SLAC) ; Xu, J (SLAC) ; Byrd, J M (LBNL) ; Vay, J L (BNL) ; Höfle, Wolfgang (CERN) ; Rumolo, G (CERN) et al.
The SPS at high intensities exhibits transverse single-bunch instabilities with signatures consistent with an Ecloud driven instability. While the SPS has a coupled-bunch transverse feedback system, control of Ecloud-driven motion requires a much wider control bandwidth capable of sensing and controlling motion within each bunched beam. [...]
CERN-ATS-2009-108.- Geneva : CERN, 2010 - 4 p. Fulltext: PDF; Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP098
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7.
Investigations into Cost Reductions of X-band Instrumentation / Van Winkle, D (SLAC) ; Dolgashev, V A (SLAC) ; Fox, J D (SLAC) ; Tantawi, S G (SLAC)
2008 - 3 p. External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPP015
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8.
Lessons Learned from PEP-II LLRF and Longitudinal Feedback / Fox, J D (SLAC) ; Mastorides, T (SLAC) ; Rivetta, C H (SLAC) ; Teytelman, D (Dimtel, Redwood City) ; Van Winkle, D (SLAC)
2008 - 3 p. External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.WEOBM02
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9.
Selecting RF Amplifiers for Impedance Controlled LLRF Systems - Nonlinear Effects and System Implications / Fox, John D ; Mastorides, Themis ; Rivetta, Claudio Hector ; Van Winkle, Daniel
PAC07-WEPMS047; SLAC-PUB-12636.- Stanford, CA : SLAC, 2007 - 7 p. External link: Fulltext from SLAC
In : 22nd Particle Accelerator Conference, Albuquerque, NM, USA, 25 - 29 Jun 2007, pp.2451-2453
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10.
Amplitude Linearizers for PEP-II 1.2 MW Klystrons and LLRF Systems / Van Winkle, Daniel ; Browne, Mike ; Fox, John ; Mastorides, Themis ; Rivetta, Claudio Hector ; Teytelman, Dmitry
SLAC-PUB-11945.- Stanford, CA : SLAC, 2006 - 3 p. External links: Fulltext from SLAC; Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.1480
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