Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets write by Bernardo Bordini. This book was released on 2006. Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets available in PDF, EPUB and Kindle. The advance of High Energy Physics research using circulating accelerators strongly depends on increasing the magnetic bending field which accelerator magnets provide. To achieve high fields, the most powerful present-day accelerator magnets employ NbTi superconducting technology; however, with the start up of Large Hadron Collider (LHC) in 2007, NbTi magnets will have reached the maximum field allowed by the intrinsic properties of this superconductor. A further increase of the field strength necessarily requires a change in superconductor material; the best candidate is Nb{sub 3}Sn. Several laboratories in the US and Europe are currently working on developing Nb{sub 3}Sn accelerator magnets, and although these magnets have great potential, it is suspected that their performance may be fundamentally limited by conductor thermo-magnetic instabilities: an idea first proposed by the Fermilab High Field Magnet group early in 2003. This thesis presents a study of thermo-magnetic instability in high field Nb{sub 3}Sn accelerator magnets. In this chapter the following topics are described: the role of superconducting magnets in High Energy Physics; the main characteristics of superconductors for accelerator magnets; typical measurements of current capability in superconducting strands; the properties of Nb{sub 3}Sn; a description of the manufacturing process of Nb{sub 3}Sn strands; superconducting cables; a typical layout of superconducting accelerator magnets; the current state of the art of Nb{sub 3}Sn accelerator magnets; the High Field Magnet program at Fermilab; and the scope of the thesis.
Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets
Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets write by . This book was released on 2006. Thermo-magnetic Instabilities in Nb3Sn Superconducting Accelerator Magnets available in PDF, EPUB and Kindle. The advance of High Energy Physics research using circulating accelerators strongly depends on increasing the magnetic bending field which accelerator magnets provide. To achieve high fields, the most powerful present-day accelerator magnets employ NbTi superconducting technology; however, with the start up of Large Hadron Collider (LHC) in 2007, NbTi magnets will have reached the maximum field allowed by the intrinsic properties of this superconductor. A further increase of the field strength necessarily requires a change in superconductor material; the best candidate is Nb3Sn. Several laboratories in the US and Europe are currently working on developing Nb3Sn accelerator magnets, and although these magnets have great potential, it is suspected that their performance may be fundamentally limited by conductor thermo-magnetic instabilities: an idea first proposed by the Fermilab High Field Magnet group early in 2003. This thesis presents a study of thermo-magnetic instability in high field Nb3Sn accelerator magnets. In this chapter the following topics are described: the role of superconducting magnets in High Energy Physics; the main characteristics of superconductors for accelerator magnets; typical measurements of current capability in superconducting strands; the properties of Nb3Sn; a description of the manufacturing process of Nb3Sn strands; superconducting cables; a typical layout of superconducting accelerator magnets; the current state of the art of Nb3Sn accelerator magnets; the High Field Magnet program at Fermilab; and the scope of the thesis.
Superconducting Accelerator Magnets
Superconducting Accelerator Magnets - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Superconducting Accelerator Magnets write by K.-H. Mess. This book was released on 1996. Superconducting Accelerator Magnets available in PDF, EPUB and Kindle. The main topic of the book are the superconducting dipole and quadrupole magnets needed in high-energy accelerators and storage rings for protons, antiprotons or heavy ions. The basic principles of low-temperature superconductivity are outlined with special emphasis on the effects which are relevant for accelerator magnets. Properties and fabrication methods of practical superconductors are described. Analytical methods for field calculation and multipole expansion are presented for coils without and with iron yoke. The effect of yoke saturation and geometric distortions on field quality is studied. Persistent magnetization currents in the superconductor and eddy currents the copper part of the cable are analyzed in detail and their influence on field quality and magnet performance is investigated. Superconductor stability, quench origins and propagation and magnet protection are addressed. Some important concepts of accelerator physics are introduced which are needed to appreciate the demanding requirements on field quality in large storage rings. The operational experience with the superconducting HERA collider serves as an illustration. Finally superconducting correction coils and practical construction and fabrication methods of accelerator magnets are discussed. The physical and technical principles described in the book are substantiated with a wealth of experimental data on multipoles, persistent- and eddy-current effects, quench performance and much more.
Analysis of Voltage Spikes in Superconducting Nb3Sn Magnets
Analysis of Voltage Spikes in Superconducting Nb3Sn Magnets - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Analysis of Voltage Spikes in Superconducting Nb3Sn Magnets write by . This book was released on 2008. Analysis of Voltage Spikes in Superconducting Nb3Sn Magnets available in PDF, EPUB and Kindle. Fermi National Accelerator Laboratory has been developing a new generation of superconducting accelerator magnets based on Niobium Tin (Nb3Sn). The performance of these magnets is influenced by thermo-magnetic instabilities, known as flux jumps, which can lead to premature trips of the quench detection system due to large voltage transients or quenches at low current. In an effort to better characterize and understand these instabilities, a system for capturing fast voltage transients was developed and used in recent tests of R & D model magnets. A new automated voltage spike analysis program was developed for the analysis of large amount of voltage-spike data. We report results from the analysis of large statistics data samples for short model magnets that were constructed using MJR and RRP strands having different sub-element size and structure. We then assess the implications for quench protection of Nb3Sn magnets.
Nb3Sn Accelerator Magnets
Nb3Sn Accelerator Magnets - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nb3Sn Accelerator Magnets write by Alexander V Zlobin. This book was released on 2020-10-08. Nb3Sn Accelerator Magnets available in PDF, EPUB and Kindle. This open access book is written by world-recognized experts in the fields of applied superconductivity and superconducting accelerator magnet technologies. It provides a contemporary review and assessment of the experience in research and development of high-field accelerator dipole magnets based on Nb3Sn superconductor over the past five decades. The reader attains clear insight into the development and the main properties of Nb3Sn composite superconducting wires and Rutherford cables, and details of accelerator dipole designs, technologies and performance. Special attention is given to innovative features of the developed Nb3Sn magnets. The book concludes with a discussion of accelerator magnet needs for future circular colliders.; Broadens our understanding of design and performance limits of high-field Nb3Sn accelerator magnets for a future very high energy hadron collider Offers beginners a concise overview of the relevant design concepts for a new generation of superconducting accelerator magnets based on Nb3Sn superconductor Illustrates the complete process of accelerator magnet design and fabrication Provides a contemporary review and assessment of the past experience with Nb3Sn high-field dipole accelerator magnets Identifies the main open R&D issues for Nb3Sn high-field dipole magnets This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
