SRF2013 - List of Authors (Sulimov, A.A.)

Paper

Title

Page

The Statistics of Industrial XFEL Cavities Fabrication at E.ZANON

180

A. Gresele, M. Giaretta, A. Visentin
Ettore Zanon S.p.A., Nuclear Division, Schio, Italy
A.A. Sulimov, J.H. Thie
DESY, Hamburg, Germany

Serial production of superconducting cavities for European-XFEL was successfully started at E.ZANON at the end of last year. The production rate (3-4 cavities a week) allows us to summarize the results and present the statistics of industrial cavity fabrication. Many parameters have been traced during different steps of cavity production. The most interesting of them, as cavity length, frequency, field flatness and eccentricity, are presented and discussed. The last results of new preparation cycles development in the frame of E-XFEL projects is also included

MOP041

A Database for the European XFEL

205

S. Yasar, P.D. Gall, V. Gubarev, J. Iversen, A.A. Sulimov
DESY, Hamburg, Germany

The database takes over more and more an effective part of the quality control system for the whole cavity production and preparation process for European XFEL on a very detailed level. Currently we try to find out the most effective and safe way to get the production data from the different companies to the database and to control the quality of the cavity production from the Niobium sheets to the complete modules in the linac. At the moment the database contains information about 250 9-cell cavities, 7000 half cells, 2200 dumb bells and 500 end groups.

MOP051

The Statistics of Industrial XFEL Cavities Fabrication at Research Instruments

234

A.A. Sulimov, J.H. Thie
DESY, Hamburg, Germany
M. Pekeler, D. Trompetter
RI Research Instruments GmbH, Bergisch Gladbach, Germany

Serial production of superconducting cavities for European-XFEL was successfully started at Research Instrument (RI) at the end of last year. The production rate (3-4 cavities a week) allows us to summarize the results and present the statistics of industrial cavity fabrication. Many parameters have been traced during different steps of cavity production. The most interesting of them, as cavity length, frequency, field flatness and eccentricity, are presented and discussed.

Poster MOP051 [0.769 MB]

MOP052

RF Aspects of Quality Control for Industrial XFEL Cavities Fabrication

237

A.A. Sulimov, V. Gubarev, S. Yasar
DESY, Hamburg, Germany

Quality control of XFEL serial cavities allows us not only except the using of reject cavities for linac, but also give a feedback to the industry in case of cavity parameters come to their limits. RF control assays not only the electro dynamical characteristics (as frequencies, Q-factors and fields), but also provide the mechanical revise with a very high accuracy. Automation of this quality control in XFEL data base gave us a powerful tool which is required for the big projects as European-XFEL.

Poster MOP052 [1.178 MB]

TUP053

Estimation of Small Geometry Deviation for TESLA-Shape Cavities Due to Inner Surface Polishing

537

A.A. Sulimov, G. Kreps, J.K. Sekutowicz
DESY, Hamburg, Germany

Two well know polishing methods are used for the inner surface cleaning of superconducting TESLA-shape cavities: electro-polishing (EP) or buffered chemical polishing (BCP). The amount of removed material is relatively small and varies from 10 till 140 um. The cavity after polishing is closed to prevent the scratches or dust appearing on its inner surface. The estimation of the removed material amount is possible by different criteria, for example by comparison of weight before and after cleaning, or by the time - cleaning procedure duration. Both calculations could give us only approximate average value of the removed material amount. We describe the method for estimation of small geometry deviation basing on RF frequency measurements, which allows calculating the different influence of surface treatment on the iris and equator areas.

Poster TUP053 [0.785 MB]

Paper	Title	Page
MOP034	The Statistics of Industrial XFEL Cavities Fabrication at E.ZANON	180
	A. Gresele, M. Giaretta, A. Visentin Ettore Zanon S.p.A., Nuclear Division, Schio, Italy A.A. Sulimov, J.H. Thie DESY, Hamburg, Germany
	Serial production of superconducting cavities for European-XFEL was successfully started at E.ZANON at the end of last year. The production rate (3-4 cavities a week) allows us to summarize the results and present the statistics of industrial cavity fabrication. Many parameters have been traced during different steps of cavity production. The most interesting of them, as cavity length, frequency, field flatness and eccentricity, are presented and discussed. The last results of new preparation cycles development in the frame of E-XFEL projects is also included

MOP041	A Database for the European XFEL	205
	S. Yasar, P.D. Gall, V. Gubarev, J. Iversen, A.A. Sulimov DESY, Hamburg, Germany
	The database takes over more and more an effective part of the quality control system for the whole cavity production and preparation process for European XFEL on a very detailed level. Currently we try to find out the most effective and safe way to get the production data from the different companies to the database and to control the quality of the cavity production from the Niobium sheets to the complete modules in the linac. At the moment the database contains information about 250 9-cell cavities, 7000 half cells, 2200 dumb bells and 500 end groups.

MOP051	The Statistics of Industrial XFEL Cavities Fabrication at Research Instruments	234
	A.A. Sulimov, J.H. Thie DESY, Hamburg, Germany M. Pekeler, D. Trompetter RI Research Instruments GmbH, Bergisch Gladbach, Germany
	Serial production of superconducting cavities for European-XFEL was successfully started at Research Instrument (RI) at the end of last year. The production rate (3-4 cavities a week) allows us to summarize the results and present the statistics of industrial cavity fabrication. Many parameters have been traced during different steps of cavity production. The most interesting of them, as cavity length, frequency, field flatness and eccentricity, are presented and discussed.
	Poster MOP051 [0.769 MB]

MOP052	RF Aspects of Quality Control for Industrial XFEL Cavities Fabrication	237
	A.A. Sulimov, V. Gubarev, S. Yasar DESY, Hamburg, Germany
	Quality control of XFEL serial cavities allows us not only except the using of reject cavities for linac, but also give a feedback to the industry in case of cavity parameters come to their limits. RF control assays not only the electro dynamical characteristics (as frequencies, Q-factors and fields), but also provide the mechanical revise with a very high accuracy. Automation of this quality control in XFEL data base gave us a powerful tool which is required for the big projects as European-XFEL.
	Poster MOP052 [1.178 MB]

TUP053	Estimation of Small Geometry Deviation for TESLA-Shape Cavities Due to Inner Surface Polishing	537
	A.A. Sulimov, G. Kreps, J.K. Sekutowicz DESY, Hamburg, Germany
	Two well know polishing methods are used for the inner surface cleaning of superconducting TESLA-shape cavities: electro-polishing (EP) or buffered chemical polishing (BCP). The amount of removed material is relatively small and varies from 10 till 140 um. The cavity after polishing is closed to prevent the scratches or dust appearing on its inner surface. The estimation of the removed material amount is possible by different criteria, for example by comparison of weight before and after cleaning, or by the time - cleaning procedure duration. Both calculations could give us only approximate average value of the removed material amount. We describe the method for estimation of small geometry deviation basing on RF frequency measurements, which allows calculating the different influence of surface treatment on the iris and equator areas.
	Poster TUP053 [0.785 MB]