DocumentCode
3582955
Title
Development and testing of a prototype tuner for the CEBAF upgrade cryomodule
Author
Davis, G. ; Delayen, J. ; Drury, M. ; Feldl, E.
Author_Institution
TJNAF, Newport News, VA, USA
Volume
2
fYear
2001
fDate
6/23/1905 12:00:00 AM
Firstpage
1149
Abstract
An upgrade cryomodule is being developed for CEBAF at Jefferson Lab. The high-gradient, low-current operation of the superconducting cavities puts stringent requirements on the accuracy of the frequency tuner: a resolution of 1 Hz over a range of 400 kHz. We have developed and tested such a tuner; it consists of a stepper-motor-driven coarse tuner, operating in series with a piezo-actuator-driven fine tuner. Tuner test procedures and results are summarized, including frequency resolution, range, and linearity (i.e. frequency vs. tuner position), as well as microphonic effects resulting from tuner operation
Keywords
cryogenics; piezoelectric actuators; testing; tuning; CEBAF; cryomodule; frequency range; frequency resolution; frequency tuner; linearity; microphonic; piezo-actuator-driven fine tuner; piezoelectric actuators; stepper-motor-driven coarse tuner; superconducting cavities; test; Delay; Frequency measurement; Hysteresis motors; Linearity; Micromotors; Phase locked loops; Prototypes; Testing; Tuners; Tuning;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Print_ISBN
0-7803-7191-7
Type
conf
DOI
10.1109/PAC.2001.986609
Filename
986609
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