Download or read book Beam Position Monitor for RHIC written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise Estimation of Beam Position Monitors at RHIC written by and published by . This book was released on 2014 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beam position monitors (BPM) are used to record the average orbits and transverse turn-by-turn displacements of the beam centroid motion. The Relativistic Hadron Ion Collider (RHIC) has 160 BPMs for each plane in each of the Blue and Yellow rings: 72 dual-plane BPMs in the insertion regions (IR) and 176 single-plane modules in the arcs. Each BPM is able to acquire 1024 or 4096 consecutive turn-by-turn beam positions. Inevitably, there are broadband noisy signals in the turn-by-turn data due to BPM electronics as well as other sources. A detailed study of the BPM noise performance is critical for reliable optics measurement and beam dynamics analysis based on turn-by-turn data.
Download or read book RHIC Beam Position Monitor Assemblies written by and published by . This book was released on 1993 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beschreibungen und Erl uterungen des Herrn Dr Knappe zu den von ihm in den Jahren 1885 1889 auf den Inseln der S dsee gemachten ethnographischen Sammlungen written by and published by . This book was released on 1891 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RHIC Beam Position Monitor Assemblies written by and published by . This book was released on 1993 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design calculations, design details, and fabrication techniques for the RHIC BPM Assemblies are discussed. The 69 mm aperture single plane detectors are 23 cm long short-circuited 50 ohm strip transmission lines subtending 80 degrees. They are mounted on the sextupole end of the Corrector-Quadrupole-Sextupole package and operate at liquid helium temperature. The 69 cm aperture was selected to be the same as that of the beampipe in the CQS package, dc 23 cm length is a compromise between mechanical stability and electrical sensitivity to the long low-intensity proton and heavy ion bunches to be found in RHIC during commissioning, and the 80 degree subtended angle maximizes linear aperture. The striplines are aligned after brazing to maintain electrical-to-mechanical centers within 0.1 mm radius, eliminating the need for individual calibration. Because the cryogenic feedthrus isolate the UHV beam vacuum only from the HV insulating vacuum, and do not see liquid helium, a replaceable mini-ConFlat design was chosen to simplify fabrication, calibration, and maintenance.
Download or read book Design Studies on the RHIC Position Monitor System written by and published by . This book was released on 1992 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Relativistic Heavy Ion Collider (RHIC) under construction at Brookhaven National Laboratory will consist of two superconducting storage rings 3.8 km in circumference sharing one tunnel in a side by side configuration. After injection from the existing AGS, the collider will accelerate and store a range of ion species extending from protons through gold to energies of 250 GeV for protons and 100 GeV/nucleon for fully stripped gold ions. Storage times should exceed 10 hours. As in most modem colliders the RHIC beam position monitor system is the most extensive beam diagnostic in terms of both cost and channel multiplicity. The final system will consist of approximately 500 position monitors with over 600 measurement planes of electronics. Development of this system began early so that the monitors would be available for installation into the magnet cryostats. The following document summarizes some of the efforts undertaken during the design phase of this system. Because much of this work is still in progress, the document is necessarily incomplete and some details may not reflect the final system configuration.
Download or read book An Interactive Beam Position Monitor System Simulator written by and published by . This book was released on 1993 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A system simulator has been implemented to aid the development of the RHIC position monitor system. Based on the LabVIEW software package by National Instruments, this simulator allows engineers and technicians to interactively explore the parameter space of a system during the design phase. Adjustable parameters are divided into three categories: beam, pickup, and electronics. The simulator uses these parameters in simple formulas to produce results in both time-domain and frequencydomain. During the prototyping phase, these simulated results can be compared to test data acquired with the same software package. The RHIC position monitor system is presented as an example, but the software is applicable to several other systems as well.
Download or read book RHIC BPM SYSTEM MODIFICATIONS AND PERFORMANCE written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The RHIC beam position monitor (BPM) system provides independent average orbit and turn-by-turn (TBT) position measurements. In each ring, there are 162 measurement locations per plane (horizontal and vertical) for a total of 648 BPM planes in the RHIC machine. During 2003 and 2004 shutdowns, BPM processing electronics were moved from the RHIC tunnel to controls alcoves to reduce radiation impact, and the analog signal paths of several dozen modules were modified to eliminate gain-switching relays and improve signal stability. This paper presents results of improved system performance, including stability for interaction region beam-based alignment efforts. We also summarize performance of recently-added DSP profile scan capability, and improved million-turn TBT acquisition channels for 10 Hz triplet vibration, nonlinear dynamics, and echo studies.
Download or read book Development of Beam Position Monitors for Heavy Ion Recirculators written by and published by . This book was released on 1995 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work is underway at the Lawrence Livermore National Laboratory to design and build a small-scale, heavy ion recirculating induction accelerator. An essential part of this design work is the development of small nonintercepting diagnostics to measure beam current and position. This paper describes some of this work, with particular emphasis on the development of a small capacitive probe beam position monitor to resolve beam position to the 100 [mu]m level in a 6 cm diameter beam pipe. Initial measured results with an 80 keV potassium ion beam are presented.
Download or read book Design and Performance of the Booster Beam Position Monitor System written by and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RHIC BPM SYSTEM PERFORMANCE UPGRADES AND TOOLS written by and published by . This book was released on 2002 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the RHIC 2001-2 run, the beam position monitor (BPM) system provided independent average orbit and turn-by-turn (TBT) position measurements at 162 locations in each measurement plane and RHIC ring. TBT acquisition was successfully upgraded from 128 turns to 1024 turns per trigger, including injection. Closed orbits were acquired and automatically archived every two seconds through each acceleration ramp for orbit analysis and feed-forward orbit correction. This paper presents the overall system performance during this run, including precision, reproducibility, radiation damage, and analysis tools. We also summarize future plans, including million-turn TBT acquisition for nonlinear dynamics studies.
Download or read book Beam Position Monitor Analysis written by G. Di Massa and published by . This book was released on 1989 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beam Position Monitors for LEReC written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rhic written by Xiaozhe Shen and published by . This book was released on 2024-02-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study started in February, 2013 at the Collider-Accelerator Department of BNL. During the study, the technique of independent component analysis (ICA) was first introduced to RHIC for a systematic estimation of RHIC BPM noise performance and turn-by-turn (TBT) beam position monitor (BPM) data based optics measure- ment. The beta-beat response matrix based global correction scheme and the method of arc beta-beat correction using horizontal closed orbit at sextupoles were developed for RHIC. These techniques were successfully demonstrated in two beam experiments with a total of 4 hours' beam time. In the meantime, various software packages were developed to facilitate the beam experiments and future studies.
Download or read book Beam Position Monitor for Energy Recovery Linac written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NSLS II RF Beam Position Monitor written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An internal R & D program has been undertaken at BNL to develop a sub-micron RF Beam Position Monitor (BPM) for the NSLS-II 3rd generation light source that is currently under construction. The BPM R & D program started in August 2009. Successful beam tests were conducted 15 months from the start of the program. The NSLS-II RF BPM has been designed to meet all requirements for the NSLS-II Injection system and Storage Ring. Housing of the RF BPM's in +-0.1 C thermally controlled racks provide sub-micron stabilization without active correction. An active pilot-tone has been incorporated to aid long-term (8hr min) stabilization to 200nm RMS. The development of a sub-micron BPM for the NSLS-II has successfully demonstrated performance and stability. Pilot Tone calibration combiner and RF synthesizer has been implemented and algorithm development is underway. The program is currently on schedule to start production development of 60 Injection BPM's starting in the Fall of 2011. The production of H"50 Storage Ring BPM's will overlap the Injection schedule.
Download or read book Beam Position Monitor written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
