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Chromaticity Control In The Fermilab Main Injector
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Book Synopsis Chromaticity Control in the Fermilab Main Injector by :
Download or read book Chromaticity Control in the Fermilab Main Injector written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromaticity control in the Fermilab Main Injector will be important both in accelerating protons and antiprotons from 8 GeV to 150 GeV (or 120 GeV) and in decelerating recycled 150 GeV antiprotons to 8 GeV for storage in the Recycler Ring. The Main Injector has two families of sextupoles to control the chromaticity. In addition to the natural chromaticity, they must correct for sextupole fields from ramp-rate-dependent eddy currents in the dipole beampipes and current-dependent sextupole fields in the dipole magnets. The horizontal sextupole family is required to operate in a bipolar mode below the transition energy of 20 GeV. We describe methods used to control chromaticities in the Fermilab Main Injector. Emphasis is given to the software implementation of the operator interface to the front-end ramp controllers. Results of chromaticity measurements and their comparison with the design model will be presented.
Book Synopsis Proceedings of the 1999 Particle Accelerator Conference by :
Download or read book Proceedings of the 1999 Particle Accelerator Conference written by and published by . This book was released on 1999 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fermilab Main Injector written by and published by . This book was released on 2013 with total page 16 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 1993 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis Fast Transverse Beam Instability Caused by Electron Cloud Trapped in Combined Function Magnets by : Sergey A. Antipov
Download or read book Fast Transverse Beam Instability Caused by Electron Cloud Trapped in Combined Function Magnets written by Sergey A. Antipov and published by Springer. This book was released on 2018-11-01 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents profound insights into the origins and dynamics of beam instabilities using both experimental observations and numerical simulations. When the Recycler Ring, a high-intensity proton beam accelerator at Fermi National Accelerator Laboratory, was commissioned, it became evident that the Recycler beam experiences a very fast instability of unknown nature. This instability was so fast that the existing dampers were ineffective at suppressing it. The nature of this phenomenon, alongside several other poorly understood features of the beam, became one of the biggest puzzles in the accelerator community. The author investigated a hypothesis that the instability arises from an interaction with a dense cloud of electrons accompanying the proton beam. He studied the phenomena experimentally by comparing the dynamics of stable and unstable beams, by numerically simulating the build-up of the electron cloud and its interaction with the beam, and by constructing an analytical model of an electron cloud-driven instability with the electrons trapped in combined-function dipole magnets. He has devised a method to stabilize the beam by a clearing bunch, which conclusively revealed that the instability is caused by the electron cloud, trapped in a strong magnetic field. Finally, he conducted measurements of the microwave propagation through a single dipole magnet. These measurements have confirmed the presence of the electron cloud in combined-function magnets.
Book Synopsis Proceedings of the 1997 Particle Accelerator Conference by :
Download or read book Proceedings of the 1997 Particle Accelerator Conference written by and published by . This book was released on 1998 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design for Fermilab Main Injector Magnet Ramps which Account for Hysteresis by :
Download or read book Design for Fermilab Main Injector Magnet Ramps which Account for Hysteresis written by and published by . This book was released on 1997 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the dominant fields in accelerator electromagnets are proportional to the excitation current, precise control of accelerator parameters requires a detailed understanding of the fields in Main Injector magnets including contribution from eddy currents, magnet saturation, and hysteresis. Operation for decelerating beam makes such considerations particularly significant. Analysis of magnet measurements and design of control system software is presented. Field saturation and its effects on low field hysteresis are accounted for in specifying the field ramps for dipole, quadrupole and sextupole magnets. Some simplifying assumptions are made which are accepted as limitations on the required ramp sequences. Specifications are provided for relating desired field ramps to required current ramps for the momentum, tune, and chromaticity control.
Download or read book EPAC 92 written by H. Henke and published by Atlantica Séguier Frontières. This book was released on 1992 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Energy Physics Index written by and published by . This book was released on 1993 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fermilab Report written by and published by . This book was released on 1987 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Chemical Abstracts written by and published by . This book was released on 1990 with total page 2210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Fermilab Main Injector Technical Design Handbook by :
Download or read book The Fermilab Main Injector Technical Design Handbook written by and published by . This book was released on 1994 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Brief van C.A. Rethaan Macar'e aan Wopke Eekhoff (1809-1880) by :
Download or read book Brief van C.A. Rethaan Macar'e aan Wopke Eekhoff (1809-1880) written by and published by . This book was released on 1860 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1990 with total page 1422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
