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Publication Information
Title Fabrication, Tuning, Treatment and Testing of Two 3.5 Cell Photo-Injector Cavities for the ELBE Linac
Abstract As part of a CRADA (Cooperative Research and Development Agreement) between Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Thomas Jefferson Lab National Accelerator Facility (TJNAF) we have fabricated and tested two 1.3 GHz 3.5 cell photo-injector cavities from polycrystalline RRR niobium and large grain RRR niobium, respectively. The cavity with the better performance will replace the presently used injector cavity in the ELBE linac*. The cavities have been fabricated and pre-tuned at TJNAF, while the more sophisticated final field tuning, the adjustment of the external couplings and the field profile measurement of transverse electric modes for RF focusing** was done at HZDR. The following standard surface treatment and the vertical test was carried out at TJNAF's production facilities. A major challenge turned out to be the rinsing of the cathode cell, which has small opening (Ø10mm) to receive the cathode stalk. Another unexpected problem encountered after etching, since large vi
Author(s) André Arnold, Petr Murcek, Jochen Teichert, R. Xiang, Grigory Eremeev , Peter Kneisel, Mircea Stirbet, Larry Turlington
Publication Date July 2011
Document Type Meeting, Proceedings
Primary Institution Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
Affiliation Accelerator Ops, R&D / Inst for SRF Sci & Tech / SRF Processes & Materials
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-ACC-11-1460 OSTI Number: 1057883
LANL Number: Other Number: DOE/OR/23177-2424
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name SRF 2011
Meeting Date 7/21/2011
Document Subtype Paper (proceedings only)
Proceedings
Title Proceedings of SRF 2011
Editor(s)
Publisher Jacow
Refereed No
Page Number 405
Year 2011
Attachments/Datasets/DOI Link
Document(s)
JLAB-ACC-11-1460.pdf (STI Document)
DOI Link
Dataset(s) (none)
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