Next-Generation Linear Collider Final Focus System Stability Tolerances

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Total Pages : 8 pages
Book Rating : 4.:/5 (871 download)

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Book Synopsis Next-Generation Linear Collider Final Focus System Stability Tolerances by :

Download or read book Next-Generation Linear Collider Final Focus System Stability Tolerances written by and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of final focus systems for the next generation of linear colliders has evolved largely from the experience gained with the design and operation of the Stanford Linear Collider (SLC) and with the design of the Final Focus Test Beam (FFTB). We will compare the tolerances for two typical designs for a next-generation linear collider final focus system. The chromaticity generated by strong focusing systems, like the final quadrupole doublet before the interaction point of a linear collider, can be canceled by the introduction of sextupoles in a dispersive region. These sextupoles must be inserted in pairs separated by a -I transformation (Chromatic Correction Section) in order to cancel the strong geometric aberrations generated by sextupoles. Designs proposed for both the JLC or NLC final focus systems have two separate chromatic correction sections, one for each transverse plane separated by a ''[beta]-exchanger'' to manipulate the [beta]-function between the two CCS. The introduction of sextupoles and bending magnets gives rise to higher order aberrations (long sextupole and chrome-geometries) and radiation induced aberrations (chromaticity unbalance and ''Oide effect'') and one must optimize the lattice accordingly.

Final Focus Systems for Linear Colliders

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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Final Focus Systems for Linear Colliders by :

Download or read book Final Focus Systems for Linear Colliders written by and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final focus systems for linear colliders present many exacting challenges in beam optics, component design, and beam quality. Efforts to resolve these problems as they relate to a new generation of linear colliders are under way at several laboratories around the world. We will outline criteria for final focus systems and discuss the current state of understanding and resolution of the outstanding problems. We will discuss tolerances on alignment, field quality and stability for optical elements, and the implications for beam parameters such as emittance, energy spread, bunch length, and stability in position and energy. Beam-based correction procedures, which in principle can alleviate many of the tolerances, will be described. Preliminary results from the Final Focus Test Beam (FFTB) under construction at SLAC will be given. Finally, we mention conclusions from operating experience at the Stanford Linear Collider (SLC).

Research Directions For The Decade (Snowmass 1990) - Proceedings Of The 1990 Summer Study On High Energy Physics

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Publisher : World Scientific
ISBN 13 : 9814555010
Total Pages : 828 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Research Directions For The Decade (Snowmass 1990) - Proceedings Of The 1990 Summer Study On High Energy Physics by : Berger Edmond L

Download or read book Research Directions For The Decade (Snowmass 1990) - Proceedings Of The 1990 Summer Study On High Energy Physics written by Berger Edmond L and published by World Scientific. This book was released on 1992-09-16 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of the Superconducting Super Collider and other new technologies, coupled with the development of particle astrophysics and other non-accelerator based physics, research in high energy particle physics in the nineties promises to break into new and exciting frontiers. To chart the directions and opportunities for this new decade, the 1990 Summer Study on High Energy Physics was organized in Snowmass, Colorado. Like previous Snowmass Summer Studies, it plays a key role in shaping research directions and in drawing the particle physics community together.This book of the proceedings examines the full spectrum of important scientific issues and opportunities in high energy particle physics in the decade of the 1990's, including research at existing and anitcipated hadron-hadron, e+e-, and ep colliders; research at fixed-target facilities; the scientific potential of possible new facilities such as B factories; particle astrophysics and non-accelerator based physics; and accelerator and detector initiatives. It also discusses the physics and technical aspects of the initial Superconducting Super Collider experimental program.This volume, therefore, offers a captivating glimpse into the future of high energy physics, and makes essential reading for all physicists interested in assessing the exciting new research opportunities the future technologies would bring.

Handbook of Accelerator Physics and Engineering

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Publisher : World Scientific
ISBN 13 : 9814415855
Total Pages : 849 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Handbook of Accelerator Physics and Engineering by : Alexander Wu Chao

Download or read book Handbook of Accelerator Physics and Engineering written by Alexander Wu Chao and published by World Scientific. This book was released on 2013 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by internationally recognized authorities in the field, this expanded and updated new edition of the bestselling Handbook, containing more than 100 new articles, is aimed at the design and operation of modern particle accelerators. It is intended as a vade mecum for professional engineers and physicists engaged in these subjects. With a collection of more than 2000 equations, 300 illustrations and 500 graphs and tables, here one will find, in addition to the common formulae of previous compilations, hard-to-find, specialized formulae, recipes and material data pooled from the lifetime experience of many of the world''s most able practitioners of the art and science of accelerators.The eight chapters include both theoretical and practical matters as well as an extensive glossary of accelerator types. Chapters on beam dynamics and electromagnetic and nuclear interactions deal with linear and nonlinear single particle and collective effects including spin motion, beam-environment, beam-beam, beam-electron, beam-ion and intrabeam interactions. The impedance concept and related calculations are dealt with at length as are the instabilities associated with the various interactions mentioned. A chapter on operational considerations includes discussions on the assessment and correction of orbit and optics errors, real-time feedbacks, generation of short photon pulses, bunch compression, tuning of normal and superconducting linacs, energy recovery linacs, free electron lasers, cooling, space-charge compensation, brightness of light sources, collider luminosity optimization and collision schemes. Chapters on mechanical and electrical considerations present material data and important aspects of component design including heat transfer and refrigeration. Hardware systems for particle sources, feedback systems, confinement and acceleration (both normal conducting and superconducting) receive detailed treatment in a subsystems chapter, beam measurement techniques and apparatus being treated therein as well. The closing chapter gives data and methods for radiation protection computations as well as much data on radiation damage to various materials and devices.A detailed name and subject index is provided together with reliable references to the literature where the most detailed information available on all subjects treated can be found.

Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam

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ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (683 download)

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Book Synopsis Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam by :

Download or read book Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam written by and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to meet their luminosity goals, linear colliders operating in the center-of-mass energy range from 3,50 to 1,500 GeV will need to deliver beams which are as small as a few Manometers tall, with x:y aspect ratios as large as 100. The Final Focus Test Beam (FFTB) is a prototype for the final focus demanded by these colliders: its purpose is to provide demagnification equivalent to those in the future linear collider, which corresponds to a focused spot size in the FFTB of 1.7 microns (horizontal) by 60 manometers (vertical). In order to achieve the desired spot sizes, the FFTB beam optics must be tuned to eliminate aberrations and other errors, and to ensure that the optics conform to the desired final conditions and the measured initial conditions of the beam. Using a combination of incoming-beam diagnostics. beam-based local diagnostics, and global tuning algorithms, the FFTB beam size has been reduced to a stable final size of 1.7 microns by 70 manometers. In addition, the chromatic properties of the FFTB have been studied using two techniques and found to be acceptable. Descriptions of the hardware and techniques used in these studies are presented, along with results and suggestions for future research.

Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam

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ISBN 13 :
Total Pages : 668 pages
Book Rating : 4.:/5 (321 download)

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Book Synopsis Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam by : Peter Gregory Tenenbaum

Download or read book Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam written by Peter Gregory Tenenbaum and published by . This book was released on 1995 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Energy Research Abstracts

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ISBN 13 :
Total Pages : 754 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Energy Research Abstracts by :

Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physics of Particle Accelerators

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ISBN 13 :
Total Pages : 2398 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis Physics of Particle Accelerators by : Margaret Dienes

Download or read book Physics of Particle Accelerators written by Margaret Dienes and published by . This book was released on 1989 with total page 2398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects and Tolerances of Injection Jitter in the SLC and Future Linear Colliders

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ISBN 13 :
Total Pages : 3 pages
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Book Synopsis Effects and Tolerances of Injection Jitter in the SLC and Future Linear Colliders by :

Download or read book Effects and Tolerances of Injection Jitter in the SLC and Future Linear Colliders written by and published by . This book was released on 1990 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bunch injected into the main linac of a linear collider may have offsets in transverse angle and position, may have a phase error (longitudinal position offset) and, furthermore, may be optically mismatched. Each of these injection errors reduces the luminosity and must be held within tolerances. The effect of optical mismatches on the emittance at the end of the linac is calculated analytically. The tightest tolerances on magnetic elements stemming from these effects are listed. The phase tolerance is determined by the energy acceptance of the final focus system. It imposes tolerances to the integrated field strength of the damping ring and RTL bending magnets and the bunch compressor rf-phase. In this paper, measurements of injection jitter and the effect of betatron oscillations caused by changes of the angle or position of the incoming beam are described. These measurements were taken with BNS damping which relaxes certain tolerances by an order of magnitude. The injection jitter tolerances for a linac of the next generation are given. As an example, parameters for the Next Linear Collider (NLC) being designed at SLAC are used.

International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders

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ISBN 13 :
Total Pages : 380 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders by :

Download or read book International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders written by and published by . This book was released on 1992 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first day of the workshop was devoted to four plenary issues'' talks, one for each working group: Beam-Beam Interaction, Detector, Hardware, and Optical Design. The last day was devoted to plenary talks summarizing the activities of the working groups. Each of the three remaining days there, was a short morning plenary devoted to a brief summary of the preceding day and an announcement of planned working group discussions for that day. The transparencies for the issues'' and summary'' talks are included in this volume, along with some remarks from the working group chairpersons. Very briefly, the beam-beam group continued to address the quantitative study of QED induced backgrounds, and attempted to better understand the nature and prevalence of QCD millijets. The detector group attempted to identify the impact on masking and detector design of the beam-beam backgrounds, the synchrotron radiation induced backgrounds from beam halos and muon backgrounds produced primarily in collimators. Nanosecond timing elements needed in conjunction with multi-bunch operation were discussed. The hardware group addressed the problem of magnet design and support, especially the final doublet magnets suspended within the detector environment, and instrumentation issues, such as high resolution beam position monitors. The optics group discussed new final focus system ideas, collimator design, and improvement of beamline tolerances. If you were not here to participate, we hope that this volume will help you in your orientation to these problems.

A Final Focus System for the Next Linear Collider

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ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (683 download)

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Book Synopsis A Final Focus System for the Next Linear Collider by :

Download or read book A Final Focus System for the Next Linear Collider written by and published by . This book was released on 1995 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final focus of the Next Linear Collider (NLC) demagnifies electron and positron beams of 250--750 GeV energy down to a transverse size of about 2.5 x 350 nm2 at the interaction point (IP). The basic layout, momentum bandwidth, vibration tolerances, wakefield effects, and the tunability of the proposed final focus design are discussed. Also a perspective is given on the crab cavity and on effects of the solenoid field in the interaction region.

Proceedings of the International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders, May 2-6, 1992

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ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (898 download)

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Book Synopsis Proceedings of the International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders, May 2-6, 1992 by :

Download or read book Proceedings of the International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders, May 2-6, 1992 written by and published by . This book was released on 1991 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Developments in Linear Colliders Final Focus Systems

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis New Developments in Linear Colliders Final Focus Systems by :

Download or read book New Developments in Linear Colliders Final Focus Systems written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The length, complexity and cost of the present Final Focus designs for linear colliders grows very quickly with the beam energy. In this paper, a novel final focus system is presented and compared with the one proposed for NLC [1]. This new design is simpler, shorter and cheaper, with comparable bandwidth, tolerances and tunability. Moreover, the length scales slower than linearly with energy allowing for a more flexible design which is applicable over a much larger energy range.

Rice Meeting, The - Proceedings Of The 1990 Meeting Of The Division Of Particles And Fields Of The Aps (In 2 Volumes)

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Publisher : World Scientific
ISBN 13 : 9814583642
Total Pages : 1140 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Rice Meeting, The - Proceedings Of The 1990 Meeting Of The Division Of Particles And Fields Of The Aps (In 2 Volumes) by : Billy E Bonner

Download or read book Rice Meeting, The - Proceedings Of The 1990 Meeting Of The Division Of Particles And Fields Of The Aps (In 2 Volumes) written by Billy E Bonner and published by World Scientific. This book was released on 1990-11-19 with total page 1140 pages. Available in PDF, EPUB and Kindle. Book excerpt: DPF 90 at Rice University was planned as a major conference of truly international character which reviews recent developments in all areas of particle physics. Plenary session topics include new results from SLC, LEP, pp colliders, Heavy Quark Physics, High Energy Astrophysics. Two-day mini-conferences were held on the following subjects: Electroweak Physics, QCD and Hadron Physics, Theory Beyond the Standard Model, Non-accelerator Physics.

Proceedings of the International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (878 download)

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Book Synopsis Proceedings of the International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders by : D.;Irwin Burke

Download or read book Proceedings of the International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders written by D.;Irwin Burke and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

INIS Atomindex

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ISBN 13 :
Total Pages : 730 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis INIS Atomindex by :

Download or read book INIS Atomindex written by and published by . This book was released on 1996 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Tuning of Final Focus System for Future Linear Colliders

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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (255 download)

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Book Synopsis Tuning of Final Focus System for Future Linear Colliders by : Katsunobu Oide

Download or read book Tuning of Final Focus System for Future Linear Colliders written by Katsunobu Oide and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: