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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Brindza, P.D. Lassiter, S.R. Fowler, M.J. |
| Copyright Year | 2002 |
| Abstract | The Jefferson Lab 12 GeV/c upgrade involves building a new 12 GeV/c spectrometer for JLAB's Hall C called the super high momentum spectrometer (SHMS). This device achieves 4.5 mStr acceptance at bend angles for 5.5 to 40 by using five magnetic elements in a DQQQD configuration. The Q1 quadrupole is described elsewhere in this conference and is an evolution of a cold iron magnet used previously for the existing JLAB 7.5 GeV/c high momentum spectrometer (HMS). The pair of identical cosine two theta quads are an entirely new design with a large 60 cm warm bore and 13 T/m gradient. These 5 T Quads provide focusing for particles from 1 to 12 GeV/c and have an integral gradient strength of 23.5 (T/m)m. The magnetic design, including multipole strengths, will be presented. The quadrupole cold mass uses a stainless steel shrink fit force collar, titanium keys and a copper stabilized superconductor consisting of a 36 strand surplus SSC outer cable wave soldered to a copper extruded substrate. This combination provides for a very conservative magnet that can be assembled with little or no tooling and a high degree of stability. The force collar mechanical analysis will be presented as well as details of the magnet cryostat. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 415 |
| Ending Page | 418 |
| Page Count | 4 |
| File Size | 361531 |
| File Format | |
| 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 | Spectroscopy Superconducting magnets Copper Superconducting cables Magnetic devices Iron Boring Steel Titanium Assembly superconducting magnets Detector magnets quadrupole magnets |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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