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Development Of Beam Position Monitors For Final Focus Systems At The International Linear Collider
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Book Synopsis Development of Beam Position Monitors for Final Focus Systems at the International Linear Collider by : Christina Jane Swinson
Download or read book Development of Beam Position Monitors for Final Focus Systems at the International Linear Collider written by Christina Jane Swinson and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Nanometer Resolution C-Band Radio Frequency Beam Position Monitors in the Final Focus Test Beam by :
Download or read book Development of Nanometer Resolution C-Band Radio Frequency Beam Position Monitors in the Final Focus Test Beam written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a 47 GeV electron beam, the Final Focus Test Beam (FFTB) produces vertical spot sizes around 70 nm. These small beam sizes introduce an excellent opportunity to develop and test high resolution Radio Frequency Beam Position Monitors (RF-BPMs). These BPMs are designed to measure pulse to pulse beam motion (jitter) at a theoretical resolution of approximately 1 nm. The beam induces a TM110 mode with an amplitude linearly proportional to its charge and displacement from the BPM's (cylindrical cavity) axis. The C-band (5,712 MHz) TM110 signal is processed and converted into beam position for use by the Stanford Linear Collider (SLC) control system. Presented are the experimental procedures, acquisition, and analysis of data demonstrating resolution of jitter near 25 nm. With the design of future ee− linear colliders requiring spot sizes close to 3 nm, understanding and developing RF-BPMs will be essential in resolving and controlling jitter.
Book Synopsis Performance of the Beam Position Monitor System of the Final Focus TestBeam by :
Download or read book Performance of the Beam Position Monitor System of the Final Focus TestBeam written by and published by . This book was released on 1998 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Beam Position Monitor (BPM) system for the Final Focus Test Beam (FFTB) at SLAC is designed to meet challenging specifications in the areas of single-pulse resolution, ab initio installation accuracy, and time-stability of BPM electrical centroids. We review the tolerances on these quantities and the technical choices made to achieve same, and detail the results of several studies of the actual performance of the system. These results are then related to the BPM system requirements for a future high-energy ee− linear collider.
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:
Book Synopsis Overview of the Final Focus Test Beam Alignment System by :
Download or read book Overview of the Final Focus Test Beam Alignment System written by and published by . This book was released on 1993 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Final Focus Test Beam was conceived as a technological stepping stone on the way to the next linear collider. Nowhere is this more evident than with the alignment subsystems. Alignment tolerances for components prior to beam turn are almost an order of magnitude smaller than for previous projects at SLAC. Position monitoring systems which operate independent of the beam are employed to monitor motions of the components locally and globally with unprecedented precision. An overview of the FFTB alignment system is presented herein.
Book Synopsis Beam-based Alignment of the Final Focus Test Beam by :
Download or read book Beam-based Alignment of the Final Focus Test Beam written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beam-based alignment of quadrupole and sextupole magnets is crucial for the overall performance of linear collider final focus systems, especially for elimination of backgrounds and higher-order aberrations. At the Final Focus Test Beam (FFTB), alignment tolerances required for achieving the desired spot size are 100 microns in the horizontal and 30 microns in the vertical. Using a combination of independent magnet power supplies, hi-h-resolution stripline beam position monitors and precision magnet movers, the FFTB can be aligned to these tolerances in about 8 hours. Description of the algorithm, presentation of alignment results, and possible improvements to the system are discussed.
Book Synopsis A Conceptual Design of Final Focus Systems for Linear Colliders by :
Download or read book A Conceptual Design of Final Focus Systems for Linear Colliders written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Linear colliders are a relatively recent development in the evolution of particle accelerators. This report discusses some of the approaches that have been considered for the design of Final Focus Systems to demagnify the beam exiting from a linac to the small size suitable for collisions at the interaction point. The system receiving the most attention is the one adopted for the SLAC Linear Collider. However, the theory and optical techniques discussed should be applicable to the design efforts for future machines.
Book Synopsis This Indenture of Three Parts Made the Twentieth Day of July in the Twenty Ninth Year of the Reign of Our Sovereign Lord George the Third ... in the Year of Our Lord One Thousand Seven Hundred and Eighty Nine Between Joseph Sladen of the Town of Ffolkstour in the County of Kent Gentleman of the First Part John Jones of Stanford ... (only Son and Heir and Also Devisee of John Jones Late of Stanford ...) of the Second Part and Isaac Tournay of the Town and Port of Hythe in the Said County of Kent Gentleman (a Trustee ... Appointed by and for and on the Behalf of the Said John Jones) of the Third Part ... by :
Download or read book This Indenture of Three Parts Made the Twentieth Day of July in the Twenty Ninth Year of the Reign of Our Sovereign Lord George the Third ... in the Year of Our Lord One Thousand Seven Hundred and Eighty Nine Between Joseph Sladen of the Town of Ffolkstour in the County of Kent Gentleman of the First Part John Jones of Stanford ... (only Son and Heir and Also Devisee of John Jones Late of Stanford ...) of the Second Part and Isaac Tournay of the Town and Port of Hythe in the Said County of Kent Gentleman (a Trustee ... Appointed by and for and on the Behalf of the Said John Jones) of the Third Part ... written by and published by . This book was released on 1789 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Nanometer Resolution C-band Radio Frequency Beam Position Monitors in the Final Focus Test Beam by : T. Slaton
Download or read book Development of Nanometer Resolution C-band Radio Frequency Beam Position Monitors in the Final Focus Test Beam written by T. Slaton and published by . This book was released on 1998 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The final focus system of a linear collider must perform two primary functions, it must focus the two opposing beams so that their transverse dimensions at the interaction point are small enough to yield acceptable luminosity, and it must steer the beams together to maintain collisions. In addition, the final focus system must transport the outgoing beams to a location where they can be recycled or safely dumped. Elementary optical considerations for linear collider final focus systems are discussed, followed by chromatic aberrations. The design of the final focus system of the SLAC Linear Collider (SLC) is described. Tuning and diagnostics and steering to collision are discussed. Most of the examples illustrating the concepts covered are drawn from the SLC, but the principles and conclusions are said to be generally applicable to other linear collider designs as well. 26 refs., 17 figs. (LEW).
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.
Book Synopsis Bunch-length and Beam-timing Monitors in the SLC Final Focus by :
Download or read book Bunch-length and Beam-timing Monitors in the SLC Final Focus written by and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 1997/98 luminosity run of the Stanford Linear Collider (SLC), two novel RF-based detectors were brought into operation, in order to monitor the interaction-point (IP) bunch lengths and fluctuations in the relative arrival time of the two colliding beams. Both bunch length and timing can strongly affect the SLC luminosity and had not been monitored in previous years. The two new detectors utilize a broad-band microwave signal, which is excited by the beam through a ceramic gap in the final-focus beam pipe and transported outside of the beam line vault by a 160-ft long X-Band waveguide. The authors describe the estimated luminosity reduction due to bunch-length drift and IP timing fluctuation, the monitor layout, the expected responses and signal levels, calibration measurements, and beam observations.
Book Synopsis A Dynamic Alignment System for the Final Focus Test Beam by : G. Fischer
Download or read book A Dynamic Alignment System for the Final Focus Test Beam written by G. Fischer and published by . This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Final Focus Test Beam (FFTB) was conceived as a technological stepping stone on the way to the next linear collider. Nowhere is this more evident than with the alignment subsystems. Alignment tolerances for components prior to beam turn are almost an order of magnitude smaller than for previous projects at SLAC. Position monitoring systems which operate independent of the beam are employed to monitor motions of the components locally and globally with unprecedented precision. An overview of the FFTB alignment system is presented herein.
Book Synopsis Studies of Beam Position Monitor Stability by :
Download or read book Studies of Beam Position Monitor Stability written by and published by . This book was released on 1998 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the results from two studies of the time stability between the mechanical center of a beam position monitor and its electrical/electronic center. In the first study, a group of 93 BPM processors was calibrated via Test Pulse Generator once per hour in order to measure the contribution of the readout electronics to offset drifts. In the second study, a triplet of stripline BPMs in the Final Focus Test Beam, separated only by drift spaces, was read out every 6 minutes during 1 week of beam operation. In both cases offset stability was observed to be on the order of microns over time spans ranging from hours to days, although during the beam study much worse performance was also observed. Implications for the beam position monitor system of future linear collider systems are discussed.
Book Synopsis International Linear Collider Technical Review Committee Second Report 2003 by : International Linear Collider Technical Review Committee
Download or read book International Linear Collider Technical Review Committee Second Report 2003 written by International Linear Collider Technical Review Committee and published by . This book was released on 2003 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cavity Beam Position Monitor System for ATF2 by :
Download or read book Cavity Beam Position Monitor System for ATF2 written by and published by . This book was released on 2012 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Accelerator Test Facility 2 (ATF2) in KEK, Japan, is a prototype scaled demonstrator system for the final focus required for a future high energy lepton linear collider. The ATF2 beam-line is instrumented with a total of 38 C and S band resonant cavity beam position monitors (CBPM) with associated mixer electronics and digitizers. The current status of the BPM system is described, with a focus on operational techniques and performance. The ATF2 C-band system is performing well, with individual CBPM resolution approaching or at the design resolution of 50 nm. The changes in the CBPM calibration observed over three weeks can probably be attributed to thermal effects on the mixer electronics systems. The CW calibration tone power will be upgraded to monitor changes in the electronics gain and phase. The four S-band CBPMs are still to be investigated, the main problem associated with these cavities is a large cross coupling between the x and y ports. This combined with the large design dispersion in that degion makes the digital signal processing difficult, although various techniques exist to determine the cavity parameters and use these coupled signals for beam position determination.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
