Advanced Light Source Beam Diagnostics Systems

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Advanced Light Source Beam Diagnostics Systems

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Author :
language : en
Publisher:
Release Date : 1993

Advanced Light Source Beam Diagnostics Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.

The Advanced Light Source (ALS), a third-generation synchrotron light source, has been recently commissioned. Beam diagnostics were very important to the success of the operation. Each diagnostic system is described in this paper along with detailed discussion of its performance. Some of the systems have been in operation for two years. Others, in the storage ring, have not yet been fully commissioned. These systems were, however, working well enough to provide the essential information needed to store beam. The devices described in this paper include wall current monitors, a beam charge monitor, a 50 ohm Faraday cup, DC current transformers, broad-hand striplines, fluorescence screens, beam collimators and scrapers, and beam position monitors. Also, the means by which waveforms are digitized and displayed in the control room is discussed.

Recent Beam Measurements And New Instrumentation At The Advanced Light Source

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Author :
language : en
Publisher:
Release Date : 2012

Recent Beam Measurements And New Instrumentation At The Advanced Light Source written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

The Advanced Light Source (ALS) in Berkeley was the first of the soft x-ray third generation light source ever built, and since 1993 has been in continuous and successful operation serving a large community of users in the VUV and soft x-ray community. During these years the storage ring underwent through several important upgrades that allowed maintaining the performance of this veteran facility at the forefront. The ALS beam diagnostics and instrumentation have followed a similar path of innovation and upgrade and nowadays include most of the modem and last generation devices and technologies that are commercially available and used in the recently constructed third generation light sources. In this paper we will not focus on such already widely known systems, but we will concentrate our effort in the description of some measurements techniques, instrumentation and diagnostic systems specifically developed at the ALS and used during the last few years.

Performance Of Advanced Light Source Particle Beam Diagnostics

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Author :
language : en
Publisher:
Release Date : 1993

Performance Of Advanced Light Source Particle Beam Diagnostics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.

The Advanced Light Source (ALS), a third-generation synchrotron radiation facility, is complete. The particle beam diagnostics have been installed and tested. The beam injection systems have been running for two years. We have performance data on beam position monitors, beam intensity monitors, scintillators, beam collimators, a 50? Faraday cup, and broad-band striplines and kickers used in the linac, transport lines, and the booster synchrotron. The single-turn monitoring capability of the booster beam position monitoring system has been particularly useful for studying beam dynamics. Beam diagnostics for the storage ring are being commissioned. In this paper we describe each instrument, show its performance, and outline how the instruments are controlled and their output data displayed.

Diagnostic Systems Plan For The Advanced Light Source Top Offupgrade

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Author : David Robin
language : en
Publisher:
Release Date : 2005

Diagnostic Systems Plan For The Advanced Light Source Top Offupgrade written by David Robin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

The Advanced Light Source (ALS) will soon be upgraded to enable top-off operations [1], in which electrons are quasi-continuously injected to produce constant stored beam current. The upgrade is structured in two phases. First, we will upgrade our injector from 1.5 GeV to 1.9 GeV to allow full energy injection and will start top-off operations. In the second phase, we will upgrade the Booster Ring (BR) with a bunch cleaning system to allow high bunch purity top-off injection. A diagnostics upgrade will be crucial for success in both phases of the top-off project, and our plan for it is described in this paper. New booster ring diagnostics will include updated beam position monitor (BPM) electronics, a tune monitoring system, and a new scraper. Two new synchrotron light monitors and a beam stop will be added to the booster-to-storage ring transfer line (BTS), and all the existing beam current monitors along the accelerator chain will be integrated into a single injection efficiency monitoring application. A dedicated bunch purity monitor will be installed in the storage ring (SR). Together, these diagnostic upgrades will enable smooth commissioning of the full energy injector and a quick transition to high quality top-off operation at the ALS.

A Second Beam Diagnostic Beamline For The Advanced Lightsource

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Author : Nicholas Kelez
language : en
Publisher:
Release Date : 2003

A Second Beam Diagnostic Beamline For The Advanced Lightsource written by Nicholas Kelez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

A second beamline, BL 7.2, completely dedicated to beam diagnostics is being installed at the Advanced Light Source (ALS). The design has been optimized for the measurement of the momentum spread and emittance of the stored beam in combination with the existing diagnostic beamline, BL 3.1. A detailed analysis of the experimental error has allowed the definition of the system parameters. The obtained requirements found a good matching with a simple and reliable system based on the detection of X-ray synchrotron radiation (SR) through a pinhole system. The actual beamline, which also includes a port for visible and infrared SR as well as an X-ray beam position monitor (BPM), is mainly based on the design of two similar diagnostic beamlines at BESSY II. This approach allowed a significant saving in time, cost and engineering effort. The design criteria, including a summary of the experimental error analysis, as well as a brief description of the beamline are presented.

Commissioning Of Bl 7 2 The New Diagnostic Beam Line At The Als

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Author : Nicholas Kelez
language : en
Publisher:
Release Date : 2004

Commissioning Of Bl 7 2 The New Diagnostic Beam Line At The Als written by Nicholas Kelez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

BL 7.2 is a new beamline at the Advanced Light Source (ALS) of the Lawrence Berkeley National Laboratory (LBNL) dedicated to electron beam diagnostics. The system, which is basically a hard x-ray pinhole camera, was installed in the storage ring in August 2003 and commissioning with the ALS electron beam followed immediately after. In this paper the commissioning results are presented together with the description of the relevant measurements performed for the beamline characterization.

Beam Measurements And Upgrade At Bl 7 2 The Second Diagnosticsbeamline Of The Advanced Light Source

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Author : Michael C. Martin
language : en
Publisher:
Release Date : 2005

Beam Measurements And Upgrade At Bl 7 2 The Second Diagnosticsbeamline Of The Advanced Light Source written by Michael C. Martin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Beamline 7.2 of the Advanced Light Source (ALS) at theLawrence Berkeley National Laboratory (LBNL) is a beam diagnostics systemthat uses the synchrotron radiation emitted by a dipole magnet. Itconsists of two branches; in the first one the x-ray portion of theradiation is used in a pinhole camera system for measuring the transverseprofile of the beam. The second branch is equipped with an x-ray beamposition monitor (BPM) and with a multipurpose port where the visible and the far-infrared part of the radiation can be used for variousapplications such as bunch length measurements and IR coherentsynchrotron radiation experiments. The pinhole system has been operatingsuccessfully since the end of 2003. The installation of the second branchhas been completed recently and the results of its commissioning arepresented in this paper together with examples of beam measurementsperformed at BL 7.2.

Collection De Tableaux De Ma Tres Anciens Des Divers Coles

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Author :
language : en
Publisher:
Release Date : 1867

Collection De Tableaux De Ma Tres Anciens Des Divers Coles written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1867 with categories.

Design And Performance Of The Als Diagnostic Beamline

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Author :
language : en
Publisher:
Release Date : 1995

Design And Performance Of The Als Diagnostic Beamline written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.

Synchrotron light sources have evolved from accelerators which produced this radiation as a by-product to dedicated, third generation storage rings such as the Advanced Light Source (ALS). Optimization of beam line designs to take advantage of these new sources requires information on electron beam parameters and their stability. A real-time, image of the electron beam is useful to accelerator physicists in helping their understanding of beam dynamics, monitoring of accelerator operation, and providing a means of diagnosing problems as they arise. A diagnostic beam line for these purposes has been built at the ALS to image the electron beam by focusing bend magnet radiation. Measurement of beam parameters, electron-bunch time structure and beam dynamics can now be routinely made. The image of the electron beam can be continuously monitored via standard video equipment and the size and location of the beam redundantly measured via a second detection system utilizing a slit scanned in front of a photocathode. Longitudinal electron bunch lengths can be measured with a port providing visible light to an optical platform on which a fast photodiode or a streak camera can be mounted. An additional set of diagnostic tools built into the beam line allows determination of the acceptance of the beam line and the locations of the vertical and horizontal focal planes of the system. The system also provides a discrete method of attenuating the photon flux for equalizing the signal on the video system over the wide range of expected accelerator operating conditions.

Using Visualization In Cockpit Decision Support Systems

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Author : Cecilia R. Aragon
language : en
Publisher:
Release Date : 2005

Using Visualization In Cockpit Decision Support Systems written by Cecilia R. Aragon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Beamline 7.2 of the Advanced Light Source (ALS) at the Lawrence Berkeley National Laboratory (LBNL) is a beam diagnostics system that uses the synchrotron radiation emitted by a dipole magnet. It consists of two branches; in the first one the x-ray portion of the radiation is used in a pinhole camera system for measuring the transverse profile of the beam. The second branch is equipped with an x-ray beam position monitor (BPM) and with a multipurpose port where the visible and the far-infrared part of the radiation can be used for various applications such as bunch length measurements and IR coherent synchrotron radiation experiments. The pinhole system has been operating successfully since the end of 2003. The installation of the second branch has been completed recently and the results of its commissioning are presented in this paper together with examples of beam measurements performed at BL 7.2.