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Time Resolved Electron Beam Characterizations With Optical Transition Radiation
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Book Synopsis Time-resolved Electron-beam Characterizations with Optical Transition Radiation by :
Download or read book Time-resolved Electron-beam Characterizations with Optical Transition Radiation written by and published by . This book was released on 1992 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-resolved characterizations of electron beams using optical transition radiation (OTR) as a prompt conversion mechanism have recently been extended on the Los Alamos Free-electron Laser (FEL) facility 40-MeV linac. Two key timescales for rf-linac driven FELs are the micropulse (10 ps) and the macropulse (5 [mu]s to 1 ms). In the past we have used gated, intensified cameras to select a single or few micropulses (25 to 400 ns gate width) out of the pulse train to evaluate submacropulse effects. Recently, we have obtained some of the first measurements of micropulse bunch length (7 to 10 ps) and submacropulse spatial position and profile using OTR and a Hamamatsu streak camera. Additionally, micropulse elongation effects and head-to-tail transverse kicks are reported as a function of charge.
Book Synopsis Further Time-resolved Electron-beam Characterizations with Optical Transition Radiation by :
Download or read book Further Time-resolved Electron-beam Characterizations with Optical Transition Radiation written by and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-resolved characterizations of electron beams using optical transition radiation (OTR) as a prompt conversion mechanism have recently been extended on the Los Alamos Free-electron Laser (FEL) facility 40-MeV linac. Two key timescales for rf-linac driven FELs are the micropulse (10 ps) and the macropulse (5 [mu]s to 1 ms). In the past we have used gated, intensified cameras to select a single or few micropulses (25 to 400 ns gate width) out of the pulse train to evaluate submacropulse effects. Recently, we have obtained some of the first measurements of micropulse bunch length (7 to 10 ps) and submacropulse spatialposition and profile using OTR and a Hamamatsu streak camera. Additionally, micropulse elongation effects and head-to-tail transverse kick effects are reported as a function of charge.
Book Synopsis Time-resolved Electron-beam Characterizations with Optical Transition Radiation by : Alexander Henderson Lumpkin
Download or read book Time-resolved Electron-beam Characterizations with Optical Transition Radiation written by Alexander Henderson Lumpkin and published by . This book was released on 1992 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Further Time-resolved Electron-beam Characterizations with Optical Transition Radiation by : Alexander Henderson Lumpkin
Download or read book Further Time-resolved Electron-beam Characterizations with Optical Transition Radiation written by Alexander Henderson Lumpkin and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced, Time-resolved Imaging Techniques for Electron-beam Characterizations by :
Download or read book Advanced, Time-resolved Imaging Techniques for Electron-beam Characterizations written by and published by . This book was released on 1990 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several unique time-resolved imaging techniques have been developed to address radio frequency (RF)-linac generated electron beams and the free-electron lasers (FEL) driven by such systems. The time structures of these beams involve a series of micropulses with 10 to 15-ps duration, separated by tens of nanoseconds. Mechanisms to convert the e-beam information to optical radiation include optical transition radiation (OTR), Cherenkov radiation, spontaneous emission radiation (SER), and the FEL mechanism itself. The use of gated, intensified television cameras and synchroscan and dual-sweep streak cameras to time-resolve these signals has greatly enhanced the power of these techniques. A brief review of the less familiar conversion mechanisms and electro-optic techniques is followed by a series of specific experimental examples from the RF linac FEL facilities at Los Alamos and Boeing (Seattle, WA). 23 refs., 35 figs., 3 tabs.
Book Synopsis Time-Resolved Emittance Characterization of an Induction Linac Beam Using Optical Transition Radiation by :
Download or read book Time-Resolved Emittance Characterization of an Induction Linac Beam Using Optical Transition Radiation written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An induction linac is used by Lawrence Livermore National Laboratory to perform radiographic testing at the Flash X-ray Radiography facility. Emittance characterization is important since x-ray spot size impacts the resolution of shadow-graphs. Due to the long pulse length, high current, and beam energy, emittance measurement using Optical Transition Radiation is an attractive alternative for reasons that will be described in the text. The utility of OTR-based emittance measurement has been well demonstrated for both RF and induction linacs. We describe the time-resolved emittance characterization of an induction linac electron beam. We have refined the optical collection system for the induction linac application, and have demonstrated a new technique for probing the divergence of a subset of the beam profile. The experimental apparatus, data reduction, and conclusions will be presented. Additionally, a new scheme for characterizing the correlation between beam divergence and spatial coordinates within the beam profile will be described.
Book Synopsis Initial Optical Transition Radiation Measurements of the Electron Beam for the Boeing Free-Electron Laser Experiment by :
Download or read book Initial Optical Transition Radiation Measurements of the Electron Beam for the Boeing Free-Electron Laser Experiment written by and published by . This book was released on 1989 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential for characterization of electron beams at (approximately)100 MeV at the Boeing Free-Electron Laser (FEL) facility by optical transition radiation (OTR) techniques has been demonstrated as an important complement to other diagnostic means. Electron beam properties such as spatial profile and position, current intensity, emittance, and energy were made accessible in an on-line manner. Initial examples including transport through the 5-m wiggler and the resolution of Cerenkov radiation and spontaneous emission radiation competitive sources are discussed. 11 refs., 13 figs.
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 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Techniques for Electron-beam Characterizations on the APS SASE FEL Project by :
Download or read book Optical Techniques for Electron-beam Characterizations on the APS SASE FEL Project written by and published by . This book was released on 1998 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the Advanced Photon Source (APS) the injector linac's DC thermionic gun is being supplemented by a low-emittance rf thermionic gun that will support the SASE FEL project. To address the anticipated smaller beam sizes, the standard Chromox beam-profiling screens are being complemented by optical transition radiation (OTR) and Ce-doped YAG single-crystal converters. Direct comparisons of the effective conversion efficiency, spatial resolution, and time response of the three converter screen types have been performed using the DC thermionic gun's beam accelerated to 400 to 650 MeV. An apparent blurring of observed beam size with increasing incident charge areal density in the YAG crystal was observed for the first time. Only the OTR was prompt enough for the few-ps domain micropulse bunch length measurements performed with a stream camera. Initial beam images of the rf-thermionic gun beam have also been obtained.
Book Synopsis Appointment of John Demerit, Jr. Capt. 5th Co. 25th Reg. of Militia by :
Download or read book Appointment of John Demerit, Jr. Capt. 5th Co. 25th Reg. of Militia written by and published by . This book was released on 1794 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 1994-12 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis European Particle Accelerator Conference (Epac 94) (In 3 Volumes) by : Christine Petit-jean-genaz
Download or read book European Particle Accelerator Conference (Epac 94) (In 3 Volumes) written by Christine Petit-jean-genaz and published by World Scientific. This book was released on 1994-11-26 with total page 2968 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings aim to provide a comprehensive overview of research, technology and applications in the field of accelerators. Contributions from the entire field of accelerators are presented, including low and high energy machines, and medical and industrial accelerators.
Book Synopsis Optical Transition Radiation in High Energy Electron Beam Diagnostics by : Katja Honkavaara
Download or read book Optical Transition Radiation in High Energy Electron Beam Diagnostics written by Katja Honkavaara and published by . This book was released on 1999 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FXR LIA Optimization - Time-resolved OTR Emittance Measurement by : M. Ong
Download or read book FXR LIA Optimization - Time-resolved OTR Emittance Measurement written by M. Ong and published by . This book was released on 2005 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Flash X-Ray Radiography (FXR) facility at Lawrence Livermore National Laboratory utilizes a high current, long pulse linear induction accelerator to produce high doses of x-ray radiation. Accurate characterization of the transverse beam emittance is required in order to facilitate accelerator modeling and tuning efforts and, ultimately, to optimize the final focus spot size, yielding higher resolution radiographs. In addition to conventional magnet scan, pepper-pot, and multiple screen techniques, optical transition radiation (OTR) has been proven as a useful emittance measurement diagnostic and is particularly well suited to the FXR accelerator. We shall discuss the time-resolved emittance characterization of an induction linac electron beam using OTR, and we will present our experimental apparatus and analysis software. We shall also develop the theoretical background of beam emittance and transition radiation.
Book Synopsis Accelerator Instrumentation by : Hinkson
Download or read book Accelerator Instrumentation written by Hinkson and published by American Inst. of Physics. This book was released on 1993 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Proceedings of the October 1992 workshop, including papers and poster sessions. Papers address accelerator reliability, beam diagnostics, beam monitors, signal processing, fluorescent screens, timing systems, and software analysis. Lacks an index. Annotation c. by Book News, Inc., Portland, Or.
Download or read book Accelerator Instrumentation written by and published by . This book was released on 1991 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beam Instrumentation Workshop by : Robert E. Shafer
Download or read book Beam Instrumentation Workshop written by Robert E. Shafer and published by AIP Conference Proceedings (Nu. This book was released on 1994 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation The 37 papers include discussions of signal generation in gas detectors, the status of fluorescent screens and image processing for the APS linac, and the measurement of multi-bunch transfer functions using time-domain data and Fourier analysis. Reproduced from typescripts. No subject index. Annotation c. by Book News, Inc., Portland, Or.
