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Long Bunch Trains Measured Using A Prototype Cavity Beam Position Monitor For The Compact Linear Collider
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Book Synopsis Long Bunch Trains Measured Using a Prototype Cavity Beam Position Monitor for the Compact Linear Collider by :
Download or read book Long Bunch Trains Measured Using a Prototype Cavity Beam Position Monitor for the Compact Linear Collider written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Compact Linear Collider (CLIC) requires beam position monitors (BPMs) with 50 nm spatial resolution for alignment of the beam line elements in the main linac and beam delivery system. Furthermore, the BPMs must be able to make multiple independent measurements within a single 156 ns long bunch train. A prototype cavity BPM for CLIC has been manufactured and tested on the probe beam line at the 3rd CLIC Test Facility (CTF3) at CERN. The transverse beam position is determined from the electromagnetic resonant modes excited by the beam in the two cavities of the pickup, the position cavity and the reference cavity. The mode that is measured in each cavity resonates at 15 GHz and has a loaded quality factor that is below 200. Analytical expressions for the amplitude, phase and total energy of signals from long trains of bunches have been derived and the main conclusions are discussed. The results of the beam tests are presented. The variable gain of the receiver electronics has been characterized using beam excited signals and the form of the signals for different beam pulse lengths with the 2/3 ns bunch spacing has been observed. The sensitivity of the reference cavity signal to charge and the horizontal position signal to beam offset have been measured and are compared with theoretical predictions based on laboratory measurements of the BPM pickup and the form of the resonant cavity modes as determined by numerical simulation. Lastly, the BPM was calibrated so that the beam position jitter at the BPM location could be measured. It is expected that the beam jitter scales linearly with the beam size and so the results are compared to predicted values for the latter.
Book Synopsis Development of a Prototype Cavity Beam Position Monitor for the Compact Linear Collider by : Frankie Cullinan
Download or read book Development of a Prototype Cavity Beam Position Monitor for the Compact Linear Collider written by Frankie Cullinan and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proposing a New National Daily Paper in an Ancient Tradition by :
Download or read book Proposing a New National Daily Paper in an Ancient Tradition written by and published by . This book was released on 1961* with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Physics: Perspectives And Opportunities - Report Of The Dpf Committee On Long-term Planning by : Robert N Cahn
Download or read book Particle Physics: Perspectives And Opportunities - Report Of The Dpf Committee On Long-term Planning written by Robert N Cahn and published by World Scientific. This book was released on 1995-09-20 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of a broad-based and in-depth study of high energy physics commissioned by the Executive Committee of the Division of Particles and Fields of the American Physical Society. This year-long study was initiated in the early 1994, in the wake of the cancellation of the SSC, and is meant to complement the report of the Drell HEPAP subpanel, charged with providing a vision for the future of the field. The DPF study of high energy physics was organized on the basis of the working groups, each led by a number of co-conveners chosen among established leaders in the various subspecialties in the field. These conveners, in turn, organized their working groups by inviting other active workers in the discipline to participate and gathered further input from the community by holding a variety of specialized meetings and workshops. This book contains the final reports of the 11 working groups assembled for the study, along with an extended overview and executive summary by the editors.
Book Synopsis Applications of High-power Microwaves by : A. V. Gaponov-Grekhov
Download or read book Applications of High-power Microwaves written by A. V. Gaponov-Grekhov and published by Artech House Publishers. This book was released on 1994 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is your one-stop source of all the important research in relativistic microwave electronics in the past two decades -- advances that have greatly enhanced both the peak power and the average power capabilities of microwave oscillators and amplifiers especially at millimeter wavelengths.
Book Synopsis Nanosecond-Timescale Intra-Bunch-Train Feedback for the Linear Collider by : S. Smith
Download or read book Nanosecond-Timescale Intra-Bunch-Train Feedback for the Linear Collider written by S. Smith and published by . This book was released on 2005 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on experimental results from the December 2003/January 2004 data run of the Feedback On Nanosecond Timescales (FONT) experiment at the Next Linear Collider Test Accelerator at SLAC. We built a second-generation prototype intra-train beam-based feedback system incorporating beam position monitors, fast analogue signal processors, a feedback circuit, fast-risetime amplifiers and stripline kickers. We applied a novel real-time charge-normalization scheme to account for beam current variations along the train. We used the system to correct the position of the 170-nanosecond-long bunchtrain at NLCTA. We achieved a latency of 53 nanoseconds, representing a significant improvement on FONT1 (2002), and providing a demonstration of intra-train feedback for the Linear Collider.
Book Synopsis Beam-Beam Scans Within a Linear Collider Bunch-Train Crossing by : S. R. Smith
Download or read book Beam-Beam Scans Within a Linear Collider Bunch-Train Crossing written by S. R. Smith and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beam-beam deflection scans provide important beam diagnostics at the interaction point of a linear collider. Beam properties such as spot sizes, alignment, and waists are measured by sweeping one beam across the other. Proposed linear colliders use trains of bunches; if beam-beam scans can be done within the time of a bunch-train crossing rather than integrating over the bunch train, the acquisition rate of diagnostic information can be increased and the sensitivity of the scan to pulse-to-pulse jitter and slow drifts reduced. The existence of intra-train deflection feedback provides most of the hardware needed to implement intra-train beam-beam scans for diagnostic purposes. A conceptual design is presented for such beam-beam scans at the Next Linear Collider (NLC).
Book Synopsis Annual Report of the European Organization for Nuclear Research by : European Organization for Nuclear Research
Download or read book Annual Report of the European Organization for Nuclear Research written by European Organization for Nuclear Research and published by . This book was released on 1995 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beam Measurement - Proceedings Of The Joint Us-cern-japan-russia School On Particle Accelerators by : Stuart Turner
Download or read book Beam Measurement - Proceedings Of The Joint Us-cern-japan-russia School On Particle Accelerators written by Stuart Turner and published by World Scientific. This book was released on 1999-05-31 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the proceedings of the 8th Joint School on accelerator physics. On this occasion, the US, CERN, Japan and Russia Particle Accelerator Schools collaborated to present the topic of “Beam Measurements”. The aim was to provide an introduction to the principles of beam dynamics and measurements in circular particle accelerators. This was achieved by a series of lectures under the headings of “single-particle dynamics”, “multi-particle dynamics” and then “beam measurements”, along with practical courses on feedback and signal processing, maps and (no) simulations, practical diagnostic measurements, and spectrum and network analyzers. The resulting proceedings represent a unique summary of the currently available knowledge on beam measurements applied to circular particle accelerators.
Book Synopsis Beam-based Measurements of Long-range Transverse Wakefields in the Compact Linear Collider Main-linac Accelerating Structure by :
Download or read book Beam-based Measurements of Long-range Transverse Wakefields in the Compact Linear Collider Main-linac Accelerating Structure written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The baseline design of CLIC (Compact Linear Collider) uses X-band accelerating structures for its main linacs. In order to maintain beam stability in multibunch operation, long-range transverse wakefields must be suppressed by 2 orders of magnitude between successive bunches, which are separated in time by 0.5 ns. Such strong wakefield suppression is achieved by equipping every accelerating structure cell with four damping waveguides terminated with individual rf loads. A beam-based experiment to directly measure the effectiveness of this long-range transverse wakefield and benchmark simulations was made in the FACET test facility at SLAC using a prototype CLIC accelerating structure. The experiment showed good agreement with the simulations and a strong suppression of the wakefields with an unprecedented minimum resolution of 0.1 V/(pC mm m).
Book Synopsis High-Precision Resonant Cavity Beam Position, Emittance And Third-Moment Monitors by : R. H. Miller
Download or read book High-Precision Resonant Cavity Beam Position, Emittance And Third-Moment Monitors written by R. H. Miller and published by . This book was released on 2006 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linear colliders and FEL facilities need fast, nondestructive beam position and profile monitors to facilitate machine tune-up, and for use with feedback control. FAR-TECH, Inc., in collaboration with SLAC, is developing a resonant cavity diagnostic to simultaneously measure the dipole, quadrupole and sextupole moments of the beam distribution. Measurements of dipole and quadrupole moments at multiple locations yield information about beam orbit and emittance. The sextupole moment can reveal information about beam asymmetry which is useful in diagnosing beam tail deflections caused by short-range dipole wakefields. In addition to the resonance enhancement of a single-cell cavity, use of a multi-cell standing-wave structure further enhances signal strength and improves the resolution of the device. An estimated resolution is better than 1 {micro}m in rms beam size and better than 1 nm in beam position.
Book Synopsis Elementary Particles - Accelerators and Colliders by : Ugo Amaldi
Download or read book Elementary Particles - Accelerators and Colliders written by Ugo Amaldi and published by Springer. This book was released on 2013-03-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a historical consideration of the types and evolution of accelerators the physics of particle beams is provided in detail. Topics dealt with comprise linear and nonlinear beam dynamics, collective phenomena in beams, and interactions of beams with the surroundings. The design and principles of synchrotrons, circular and linear colliders, and of linear accelerators are discussed next. Also technological aspects of accelerators (magnets, RF cavities, cryogenics, power supply, vacuum, beam instrumentation, injection and extraction) are reviewed, as well as accelerator operation (parameter control, beam feedback system, orbit correction, luminosity optimization). After introducing the largest accelerators and colliders of their times the application of accelerators and storage rings in industry, medicine, basic science, and energy research is discussed, including also synchrotron radiation sources and spallation sources. Finally, cosmic accelerators and an outlook for the future are given.
Book Synopsis Submicron Beam Position Monitors for Japan Linear Collider by : H. Hayano
Download or read book Submicron Beam Position Monitors for Japan Linear Collider written by H. Hayano and published by . This book was released on 1992 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of a Fast Intra-train Beam-based Feedback System Capable of Operating on the Bunch Trains of the International Linear Collider by : Douglas Robert Bett
Download or read book The Development of a Fast Intra-train Beam-based Feedback System Capable of Operating on the Bunch Trains of the International Linear Collider written by Douglas Robert Bett and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis First Beam Position Measurement and Orbit Correction with Prototype Loop Position Monitor, January 1989 by : Walter Barry
Download or read book First Beam Position Measurement and Orbit Correction with Prototype Loop Position Monitor, January 1989 written by Walter Barry and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of the multi-bunch beam by button-type beam position monitor by : F. Hinode
Download or read book Observation of the multi-bunch beam by button-type beam position monitor written by F. Hinode and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
