Objective
The proposed project aims to answer the question whether it is feasible to phase-lock a harmonic gyrotron oscillator by estimating the input power needed for such an operation and studying the influence of a number of parameters on the locking conditions. Since available microwave sources, which can be used to provide the input (locking) signal, are limited in frequency and power, it is proposed to premodulate the electron beam in an input cavity at the fundamental of the gyrofrequency and to use the harmonics of the ac beam current to lock the output of a second cavity at the harmonics of the gyrofrequency. This will reduce considerably the required frequency of the input signal and will facilitate the choice of the source to provide it. The design of a third harmonic gyrotron will be given and a general theory for phase-locking a harmonic gyrotron oscillator via a premodulated electron beam will be developed. Competition from other harmonics and especially from the fundamental component of the ac beam current will be considered. A small-signal theory will be developed to study the influence of peniotron interaction on harmonic gyrotron operation. Spread in electron velocity and guiding center will be included. A preliminary design of a phase-locked harmonic gyrotron will be attempted to illustrate the results of the developed theory and to study the feasibility of this kind of microwave tube.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
15773 Athens
Greece
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.