Active suppression of microphonics detuning in high QL cavities
نویسندگان
چکیده
منابع مشابه
Electronic Damping of Microphonics in Superconducting Cavities*
In previous applications of high-velocity superconducting cavities, the accelerated beam currents were sufficiently high that the microphonics-induced frequency excursions were significantly less than the loaded bandwidth, and the power absorbed by the beam dominated the total power requirement. In new applications (CEBAF Upgrade, RIA,) the beam currents will be sufficiently low that the rf pow...
متن کاملsuppression of coke formation in thermal cracking by coke inhibitors
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
15 صفحه اولDetuning Compensation in Sc Cavities Using Kalman Filters
At Helmholtz Zentrum Berlin two projects are being developed where continuous wave driven SRF cavities are being implemented: bERLinPro and BESSY-VSR. The almost negligible beam loading in these systems, allow operating at high loaded quality factors and thus narrow bandwidths. Thereby, microphonics’ influence on the frequency response will dominate the performance of the cavities and the amoun...
متن کاملCompensating Microphonics in SRF Cavities to Ensure Beam Stability for Future Free-Electron-Lasers
In seeded High-Gain-Harmonic-Generation free electron lasers or energy recovery linear accelerators the requirements for the bunch-to-bunch timing and energy jitter of the beam are in the femtosecond and per mill regime. This implies the ability to control the cavity radiofrequency (RF) field to an accuracy of 0.02◦ in phase and up to 1·10-4 in amplitude. For the planned BESSY-FEL it is envisag...
متن کاملActive Vibration Suppression of a Nonlinear Flexible Spacecraft
In this article, the issue of attitude control and active vibration suppression of a nonlinear flexible spacecraft is assessed through piezoelectric patches as actuator and sensors. Two controller loops are applied: the inner loop, to make the panel vibration damped through piezoelectric patches; and the outer loop, to perform spacecraft maneuver using the reaction wheel acting on the hub. An o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Accelerators and Beams
سال: 2019
ISSN: 2469-9888
DOI: 10.1103/physrevaccelbeams.22.052002