NDLI: Wire-scanner design for the SNS superconducting-RF linac

Content Provider	IEEE Xplore Digital Library
Author	Hardekopf, R. Meyer Sr., R. Plum, M. Power, J. Rose, C. Sattler, D. Shafer, R.
Copyright Year	2001
Description	Author affiliation: Los Alamos Nat. Lab., NM, USA (Hardekopf, R.)
Abstract	The requirement for profile measurements in the SNS superconducting-RF (SRF) linac has presented diagnostic designers with unusual challenges. In addition to making accurate measurements of a high-brightness H/sup -/ beam, the device must be compatible with 10/sup -10/ Torr vacuum requirements. Also, it cannot impact reliability of the nearby superconducting structures, either by failure modes, by introducing particulate matter, by vaporization, or by producing excessive radiation levels. We have designed a device to meet these stringent requirements by using a lever-action mechanism and a formed bellows that provide a clean interface and keep all moving joints outside the vacuum. Both tungsten and niobium wires are suitable, but thermal properties and charge collection are important issues that are considered. The prototype currently being fabricated will be used to verify vacuum and reliability performance.
Sponsorship	U.S. Dept. Energy
Starting Page	1312
Ending Page	1314
File Size	309589
Page Count	3
File Format	PDF
ISBN	0780371917
DOI	10.1109/PAC.2001.986664
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	Superconducting filaments and wires Superconducting devices Linear particle accelerator Lattices Particle beams Apertures Strontium Laboratories Power measurement Bellows
Content Type	Text
Resource Type	Article

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