Author: V. Shiltsev Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
Chromaticity drift during injection is a well-known phenomenon in superconducting colliders, such as the Tevatron, HERA and RHIC. Imperfect compensation of the drift effects can contribute to beam loss and emittance growth. It is caused by the drift of the sextupole component in the dipole magnets due to current redistribution in its superconducting coils. Recently extensive studies of chromaticity drift were conducted at the Tevatron, aiming at the improvement of the luminosity performance in the ongoing run II. These studies included not only beam experiments, but also extensive off-line magnetic measurements on spare Tevatron dipoles. Less known, until recently, is that chromaticity drift is often accompanied by tune and coupling drift. This was recently discovered in the Tevatron. We believe that these effects are the product of systematic beam offset in conjunction with the sextupole drifts (and their compensation in the chromaticity correctors). These discoveries are most relevant to the upcoming LHC, where the drift effects will have even more dramatic consequences given the high beam current. It is therefore not a surprise that CERN has been the source of major advances in the understanding of dynamic effects during the LHC superconducting magnet development. The following will briefly review the CERN results as well as those of the recent Fermilab studies. A new result, which will be presented here also, is related to fast drifts occurring in the first few seconds of the injection plateau. Again, these fast drifts were observed first in the Tevatron and efforts are underway to explain them. Finally this paper will attempt to derive the implications of these drift effects on LHC commissioning and operation.
Author: United States. Congress. House. Committee on Science, Space, and Technology Publisher: ISBN: Category : Nuclear physics Languages : en Pages : 1090
Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research and Development Publisher: ISBN: Category : Superconducting Super Collider Languages : en Pages : 312
Author: United States. Congress. House. Committee on Science, Space, and Technology Publisher: ISBN: Category : Political Science Languages : en Pages : 268
Author: Lucio Rossi Publisher: World Scientific ISBN: 9811278962 Category : Science Languages : en Pages : 660
Book Description
This book introduces the physics and technology of the High-Luminosity Large Hadron Collider (LHC), highlighting the most recent modifications that shaped the final configuration, which is now in the advanced stages of its construction.This new High-Luminosity configuration of the LHC is the major accelerator project of this decade and will give new life to the LHC after its first fifteen years of operation, allowing for more precise measurements of the Higgs Boson and extending the mass limit reach for new particles.The LHC is such a highly optimized machine that upgrading it requires breakthroughs in many areas. Unsurprisingly, the High-Luminosity LHC required a long R&D period to bring into life an innovative accelerator magnet, based on Nb3Sn and capable of generating fields in the 11-12 T range, as well as many other new accelerator technologies such as superconducting compact RF crab cavities, advanced collimation concepts, a novel powering technology based on high temperature superconducting links, and others.The book is a self-consistent series of papers, which addresses all technology and design issues. Each paper can be read separately as well. The first few papers provide a summary of the whole project, the physics motivation, and the accelerator challenges. Altogether, this book brings the reader to the heart of the technologies that will also be key for the next generation of hadron colliders.This book is an essential reference for physicists and engineers in the field of hadron colliders and LHC related issues and can also be read by postgraduate students.
Author: Oliver Brüning Publisher: World Scientific Publishing Company ISBN: 9814675474 Category : Science Languages : en Pages : 406
Book Description
This book provides a broad introduction to the physics and technology of the High Luminosity Large Hadron Collider (HL-LHC). This new configuration of the LHC is one of the major accelerator projects for the next 20 years and will give new life to the LHC after its first 15-year operation. Not only will it allow more precise measurements of the Higgs boson and of any new particles that might be discovered in the next LHC run, but also extend the mass limit reach for detecting new particles. The HL-LHC is based on the innovative accelerator magnet technologies capable of generating 11–13 Tesla fields, with effectiveness enhanced by use of the new Achromatic Telescopic Squeezing scheme, and other state-of-the-art accelerator technologies, such as superconducting compact RF crab cavities, advanced collimation concepts, and novel power technology based on high temperature superconducting links. The book consists of a series of chapters touching on all issues of technology and design, and each chapter can be read independently. The first few chapters give a summary of the whole project, of the physics motivation and of the accelerator challenges. The subsequent chapters cover the novel technologies, the new configurations of LHC and of its injectors as well as the expected operational implications. Altogether, the book brings the reader to the heart of technologies for the leading edge accelerator and gives insights into next generation hadron colliders.
Author: United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Investigations and Oversight Publisher: ISBN: Category : Political Science Languages : en Pages : 248
Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research and Development Publisher: ISBN: Category : Superconducting Super Collider Languages : en Pages : 356
Author: V. Shiltsev
Author: United States. Congress. House. Committee on Science, Space, and Technology
Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research and Development
Author: 
Author: United States. Congress. House. Committee on Science, Space, and Technology
Author: 
Author: Lucio Rossi
Author: Oliver Brüning
Author: United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Investigations and Oversight
Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research and Development