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Title: Improved Magnetron Stability and Reduced Noise in Efficient Transmitters for Superconducting Accelerators

Abstract

State of the art high-current superconducting accelerators require efficient RF sources with a fast dynamic phase and power control. This allows for compensation of the phase and amplitude deviations of the accelerating voltage in the Superconducting RF (SRF) cavities caused by microphonics, etc. Efficient magnetron transmitters with fast phase and power control are attractive RF sources for this application. They are more cost effective than traditional RF sources such as klystrons, IOTs and solid-state amplifiers used with large scale accelerator projects. However, unlike traditional RF sources, controlled magnetrons operate as forced oscillators. Study of the impact of the controlling signal on magnetron stability, noise and efficiency is therefore important. This paper discusses experiments with 2.45 GHz, 1 kW tubes and verifies our analytical model which is based on the charge drift approximation.

Authors:
 [1];  [1];  [2];  [2]
  1. MUONS Inc., Batavia
  2. Fermilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1437284
Report Number(s):
FERMILAB-CONF-18-130-AD-APC-TD
1673325
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 9th International Particle Accelerator Conference, Vancouver, BC Canada, 04/29-05/04/2018
Country of Publication:
United States
Language:
English

Citation Formats

Kazakevich, G., Johnson, R., Lebedev, V., and Yakovlev, V. Improved Magnetron Stability and Reduced Noise in Efficient Transmitters for Superconducting Accelerators. United States: N. p., 2018. Web.
Kazakevich, G., Johnson, R., Lebedev, V., & Yakovlev, V. Improved Magnetron Stability and Reduced Noise in Efficient Transmitters for Superconducting Accelerators. United States.
Kazakevich, G., Johnson, R., Lebedev, V., and Yakovlev, V. Sun . "Improved Magnetron Stability and Reduced Noise in Efficient Transmitters for Superconducting Accelerators". United States. https://www.osti.gov/servlets/purl/1437284.
@article{osti_1437284,
title = {Improved Magnetron Stability and Reduced Noise in Efficient Transmitters for Superconducting Accelerators},
author = {Kazakevich, G. and Johnson, R. and Lebedev, V. and Yakovlev, V.},
abstractNote = {State of the art high-current superconducting accelerators require efficient RF sources with a fast dynamic phase and power control. This allows for compensation of the phase and amplitude deviations of the accelerating voltage in the Superconducting RF (SRF) cavities caused by microphonics, etc. Efficient magnetron transmitters with fast phase and power control are attractive RF sources for this application. They are more cost effective than traditional RF sources such as klystrons, IOTs and solid-state amplifiers used with large scale accelerator projects. However, unlike traditional RF sources, controlled magnetrons operate as forced oscillators. Study of the impact of the controlling signal on magnetron stability, noise and efficiency is therefore important. This paper discusses experiments with 2.45 GHz, 1 kW tubes and verifies our analytical model which is based on the charge drift approximation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {4}
}

Conference:
Other availability
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