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Title: Using traveling wave structures to extract power from relativistic klystrons

Abstract

The purpose of this note is to analyze the excitation of traveling wave (TW) output structures by an RF current. Such structures are being used in relativistic klystron experiments at Lawrence Livermore National Laboratory. First we will preset a set of difference equations that describes the excitation of the cells of a TW structure. Next we will restrict our attention to structures that have identical cells, except possibly for the first and last cells. Under these circumstances one can obtain difference equations that have constant coefficients, and we will present the general solution of these equations. Lastly we will apply our results to the analysis of a TW output structure. We will show that, by appropriate choice of the quality factors (Qs) and eigenfrequencies of the first and last cells, it is possible to obtain a traveling wave solution for which there is no reflected wave and where the excitation grows linearly with cell number.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
Sponsoring Org.:
DOE/DP
OSTI Identifier:
6631027
Report Number(s):
UCRL-JC-105054; CONF-9009123-7
ON: DE91000297
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Linear accelerator conference, Albuquerque, NM (USA), 9-14 Sep 1990
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; KLYSTRONS; ENERGY TRANSFER; TRAVELLING WAVES; EXCITATION; FINITE DIFFERENCE METHOD; LINEAR ACCELERATORS; RF SYSTEMS; ACCELERATORS; ELECTRON TUBES; ELECTRONIC EQUIPMENT; ENERGY-LEVEL TRANSITIONS; EQUIPMENT; ITERATIVE METHODS; MICROWAVE EQUIPMENT; MICROWAVE TUBES; NUMERICAL SOLUTION; 430303* - Particle Accelerators- Experimental Facilities & Equipment

Citation Formats

Ryne, R D, and Yu, S S. Using traveling wave structures to extract power from relativistic klystrons. United States: N. p., 1990. Web.
Ryne, R D, & Yu, S S. Using traveling wave structures to extract power from relativistic klystrons. United States.
Ryne, R D, and Yu, S S. 1990. "Using traveling wave structures to extract power from relativistic klystrons". United States. https://www.osti.gov/servlets/purl/6631027.
@article{osti_6631027,
title = {Using traveling wave structures to extract power from relativistic klystrons},
author = {Ryne, R D and Yu, S S},
abstractNote = {The purpose of this note is to analyze the excitation of traveling wave (TW) output structures by an RF current. Such structures are being used in relativistic klystron experiments at Lawrence Livermore National Laboratory. First we will preset a set of difference equations that describes the excitation of the cells of a TW structure. Next we will restrict our attention to structures that have identical cells, except possibly for the first and last cells. Under these circumstances one can obtain difference equations that have constant coefficients, and we will present the general solution of these equations. Lastly we will apply our results to the analysis of a TW output structure. We will show that, by appropriate choice of the quality factors (Qs) and eigenfrequencies of the first and last cells, it is possible to obtain a traveling wave solution for which there is no reflected wave and where the excitation grows linearly with cell number.},
doi = {},
url = {https://www.osti.gov/biblio/6631027}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Sep 19 00:00:00 EDT 1990},
month = {Wed Sep 19 00:00:00 EDT 1990}
}

Conference:
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