Title |
Substitution of Spring Clamps for Bolts on SRF Cavity Flanges to Minimize Particle Generation |
Authors |
- G.H. Biallas
Hyperboloid LLC, Yorktown, Virginia, USA
- E. Daly, K. Macha, C.E. Reece
JLab, Newport News, Virginia, USA
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Abstract |
Hyperboloid LLC developed and successfully tested a System of High Force Spring Clamps to substitute, one for one, for bolts on the flanges of SRF Cavities. The Clamps are like exceptionally forceful binder clips. The System, that includes the Hydraulic Openers that apply the clamps, minimizes generation of particulates when sealing cavity flanges. Hyperboloid LLC used ANSYS to design the titanium clamps that generate the force to seal the hexagonal cross section, relatively hard aluminum gasket developed for TESLA and used at JLab and other accelerators. The System is developed to be suitable for use in SRF Clean Rooms. Results of particle counter readings during bolt and clamp installation and superfluid helium challenges to the sealed flanges are discussed. Results of a half-size clamp that could seal a soft aluminum gasket and the attempt to seal a gasket made of niobium are also discussed.
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Footnotes & References |
L. Monaco, P. Michelato, C. Pagani, N. Panzeri, Experimental and Theoretical Analysis of Tesla-like SFRF Cavity Flanges, INFN Milano- LASA, I-20090 Segrate (MI), Italy. Proc. EPAC 2006, Edinburgh, SC |
Funding |
Funding supplied by US Department of Energy SBIR Grant #DE-SC0019579 |
Paper |
download THPTEV012.PDF [1.330 MB / 5 pages] |
Poster |
download THPTEV012_POSTER.PDF [1.404 MB] |
Cite |
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Conference |
SRF2021 |
Series |
International Conference on RF Superconductivity (20th) |
Location |
East Lansing, MI, USA |
Date |
28 June-02 July 2021 |
Publisher |
JACoW Publishing, Geneva, Switzerland |
Editorial Board |
Kenji Saito (FRIB, MSU, East Lansing, MI, USA); Ting Xu (FRIB, MSU, East Lansing, MI, USA); Naruhiko Sakamoto (RIKEN, Wako, Japan); Ana Lesage (FRIB, MSU, East Lansing, MI, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
Online ISBN |
978-3-95450-233-2 |
Online ISSN |
2673-5504 |
Received |
21 June 2021 |
Revised |
16 December 2021 |
Accepted |
28 April 2022 |
Issue Date |
01 May 2022 |
DOI |
doi:10.18429/JACoW-SRF2021-THPTEV012 |
Pages |
853-857 |
Copyright |
Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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