NDLI: A Superconducting Horizontal Bend Magnet for JLab's 12 Gev/c Super High Momentum Spectrometer

Content Provider	IEEE Xplore Digital Library
Author	Chouhan, S. Zeller, A.F. DeKamp, J. Brindza, P. Lassiter, S. Fowler, M.
Copyright Year	2002
Abstract	Collaboration exists between NSCL and JLab to developing the reference design of JLab's super high momentum spectrometer (SHMS) horizontal bend magnet. A Superconducting "C"type, superferric dipole magnet that allows the SHMS to reach small forward angles without restricting the SHMS's acceptance, degree of motion or range of particle energy is presented. Spatial requirements for the coexistence of the SHMS at forward angles of -5.5deg along with the existing high momentum spectrometer (HMS) at 12deg to the primary beam line give rise to close tolerances on design parameters. The bending of 12 Gev/c particles by 3deg requires an integral field strength up to 2.1 T.m. The current design is "warm-iron" with a nominal yoke length of 600 mm and a minimum pole gap of 350 mm. Choice of superconducting conductor, between surplus re-flattened SSC NbTi Rutherford cable that provides plenty of current margin and cost savings and Nb₃Sn cable, noted for its temperature margin will be highlighted. Coil forces, coil restraint system, energy margins, hot spot and final temperatures, beam radiated heating and superconducting stability will also be presented.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	403
Ending Page	406
Page Count	4
File Size	384569
File Format	PDF
ISSN	10518223
Volume Number	18
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting magnets Spectroscopy Superconducting cables Superconducting coils Temperature Collaboration Conductors Niobium compounds Titanium compounds Costs warm iron Cryostat dipole magnet superferric
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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