Low-Level RF Control of Microphonics in Superconducting Spoke-Loaded Cavities
Conference
·
OSTI ID:955805
This paper presents the results of cw RF frequency control and RF phase-stabilization experiments performed with a piezoelectric fast tuner mechanically coupled to a superconducting, 345 MHz, Ë = 0.5 triple-spoke-loaded cavity operating at 4.2K. The piezoelectric fast tuner damped low-frequency microphonic-noise by an order of magnitude. Two methods of RF phase-stabilization were characterized: overcoupling with negative phase feedback, and also fast mechanical tuner feedback. The Ë = 0.5 triple-spoke-loaded cavity RF field amplitude and phase errors were controlled to ±0.5% and ±30 respectively.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-060R23177
- OSTI ID:
- 955805
- Report Number(s):
- JLAB-ACC-07-773; DOE/OR/23177-0552; TRN: US1004749
- Resource Relation:
- Conference: Paper compiled for SRF 2007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low-level RF control of superconducting microphonics in spoke-loaded cavities.
Low-Level RF Control of Microphonics in Superconducting Spoke-Loaded Cavities
Electro-Mechanical Properties of Spoke-Loaded Superconducting Cavities
Conference
·
Mon Jan 01 00:00:00 EST 2007
·
OSTI ID:955805
+6 more
Low-Level RF Control of Microphonics in Superconducting Spoke-Loaded Cavities
Conference
·
Wed Jul 01 00:00:00 EDT 2009
·
OSTI ID:955805
+4 more
Electro-Mechanical Properties of Spoke-Loaded Superconducting Cavities
Conference
·
Mon Oct 01 00:00:00 EDT 2007
·
OSTI ID:955805
+3 more