The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Perturbation-based extremum seeking (ES) is a non model-based approach to maximize or minimize the output of a dynamic system without requiring any explicit information about the dynamics of the system, steady state map, or the value of the extremum. In this work, perturbation-based ES is used to minimize power reflection from a cavity resonator in order to provide maximum accelerating field for particles...
This paper presents a motion control system based on reflected power measurements to stabilize the natural resonance frequency of an RF cavity. Control of the natural resonance frequency of an RF cavity is essential for superconducting accelerator structures due to their high cavity sensitivity to internal and external vibrations and dependency on temperature changes. Due to the relatively high radio...
Control of the natural resonance frequency of an RF cavity is challenging due to the variations in the input frequency and the highly nonlinear dynamics involved. The drift of resonance frequency due to disturbances such as temperature variations has to be compensated using a sensor based feedback controller. Additionally, there are limited possibilities for measurement of relevant quantities such...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.