NDLI: A large bore pulsed quadrupole magnet for transport of high current beams at low energies

Content Provider	IEEE Xplore Digital Library
Author	Henestroza, E. Shuman, D. Vanecek, D.L. Waldron, W.L. Yu, S.S.
Copyright Year	2001
Description	Author affiliation: Lawrence Berkeley Nat. Lab., CA, USA (Henestroza, E.)
Abstract	We present the design of a large bore pulsed quadrupole magnet for transport of a high current, space charge-dominated heavy ion beam in a neutralized beam focussing experiment using four magnets. The design is current dominated, with solid circular cross-section insulated copper conductors located within a circular laminated iron core. The design produces a field of 0.96 T at the maximum beam envelope of 12 cm. The magnet has a short length relative to its bore, and a small number of turns in order to minimize inductance, thus allowing high currents at modest voltage. A conductor diameter is chosen to minimize the combination of resistive and eddy current losses in the magnet coils, within limits of existing fabrication equipment. Higher order multipole field components sum to 0.06% B/sub 2/ @ 10 cm radius. Coils are fabricated using a wind/stretch technique to produce straight and accurately located conductor runs while preserving the integrity of the polymer insulation. Coils are wound in a "single layer/double pancake" style to place all conductor runs at the same radius, yet avoid "stranded" conductors at the poles. The beamtube is a separate composite stainless steel/fiberglass epoxy beam tube for the entire magnetic transport line. This minimizes eddy current losses in the vacuum system, both in the midsection of the magnets and at the magnet ends, where thick flanges would normally be present.
Sponsorship	U.S. Dept. Energy
Starting Page	2935
Ending Page	2937
File Size	318310
Page Count	3
File Format	PDF
ISBN	0780371917
DOI	10.1109/PAC.2001.987960
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Boring Magnetic separation Conductors Coils Eddy currents Space charge Ion beams Solids Insulation Copper
Content Type	Text
Resource Type	Article

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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