Variable Permanent Magnet Quadrupole
Journal Article
·
· IEEE Trans.Appl.Supercond.16:224, 2006
OSTI ID:907959
A permanent magnet quadrupole (PMQ) is one of the candidates for the final focus lens in a linear collider. An over 120 T/m strong variable permanent magnet quadrupole is achieved by the introduction of saturated iron and a 'double ring structure'. A fabricated PMQ achieved 24 T integrated gradient with 20 mm bore diameter, 100 mm magnet diameter and 20 cm pole length. The strength of the PMQ is adjustable in 1.4 T steps, due to its 'double ring structure': the PMQ is split into two nested rings; the outer ring is sliced along the beam line into four parts and is rotated to change the strength. This paper describes the variable PMQ from fabrication to recent adjustments.
- Research Organization:
- Stanford Linear Accelerator Center (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515;
- OSTI ID:
- 907959
- Report Number(s):
- SLAC-PUB-12504
- Journal Information:
- IEEE Trans.Appl.Supercond.16:224, 2006, Journal Name: IEEE Trans.Appl.Supercond.16:224, 2006 Journal Issue: 224 Vol. 16
- Country of Publication:
- United States
- Language:
- English
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