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Title: Accelerator production of tritium 700 MHz and 350 MHz klystron test results

Abstract

The Accelerator Production of Tritium project (APT) utilizes a 1,700 MeV, 100 mA proton Linac. The radio frequency (RF) power is provided by 244 continuous wave (CW) klystron amplifiers at 350 MHz and 700 MHz. All but three of the klystrons operate at a frequency of 700 MHz. The 350 MHz klystrons have a nominal output power of 1.2 MW at a DC-to-RF conversion efficiency of 65%. They are modulating-anode klystrons and operate at a beam voltage and current of 95 kV and 20 A. The design is based on the CERN klystron. The 700 MHz klystron is a new development for APT. Three 700 MHz klystrons are currently under development. Two vendors are each developing a baseline klystron that has a nominal output power of 1.0 MW at a DC-to-RF conversion efficiency of 65%. A 700 MHz klystron is also under development that promises to provide an efficiency in excess of 70%. The 700 MHz klystrons operate at a maximum beam voltage of 95 kV and a maximum beam current of 17 A. The test results of these klystrons will be presented and the design features will be discussed.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
345047
Report Number(s):
LA-UR-98-3496; CONF-980827-
ON: DE99002317; TRN: AHC29919%%101
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Technical Report
Resource Relation:
Conference: 19. international linac conference, Chicago, IL (United States), 23-28 Aug 1998; Other Information: PBD: [1998]
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; KLYSTRONS; LINEAR ACCELERATORS; RF SYSTEMS; DESIGN; PERFORMANCE TESTING; MHZ RANGE 100-1000; EXPERIMENTAL DATA; TRITIUM; ISOTOPE PRODUCTION

Citation Formats

Rees, D., Lynch, M., and Tallerico, P.. Accelerator production of tritium 700 MHz and 350 MHz klystron test results. United States: N. p., 1998. Web. doi:10.2172/345047.
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Rees, D., Lynch, M., & Tallerico, P.. Accelerator production of tritium 700 MHz and 350 MHz klystron test results. United States. doi:10.2172/345047.
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Rees, D., Lynch, M., and Tallerico, P.. Thu . "Accelerator production of tritium 700 MHz and 350 MHz klystron test results". United States. doi:10.2172/345047. https://www.osti.gov/servlets/purl/345047.
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@article{osti_345047,
title = {Accelerator production of tritium 700 MHz and 350 MHz klystron test results},
author = {Rees, D. and Lynch, M. and Tallerico, P.},
abstractNote = {The Accelerator Production of Tritium project (APT) utilizes a 1,700 MeV, 100 mA proton Linac. The radio frequency (RF) power is provided by 244 continuous wave (CW) klystron amplifiers at 350 MHz and 700 MHz. All but three of the klystrons operate at a frequency of 700 MHz. The 350 MHz klystrons have a nominal output power of 1.2 MW at a DC-to-RF conversion efficiency of 65%. They are modulating-anode klystrons and operate at a beam voltage and current of 95 kV and 20 A. The design is based on the CERN klystron. The 700 MHz klystron is a new development for APT. Three 700 MHz klystrons are currently under development. Two vendors are each developing a baseline klystron that has a nominal output power of 1.0 MW at a DC-to-RF conversion efficiency of 65%. A 700 MHz klystron is also under development that promises to provide an efficiency in excess of 70%. The 700 MHz klystrons operate at a maximum beam voltage of 95 kV and a maximum beam current of 17 A. The test results of these klystrons will be presented and the design features will be discussed.},
doi = {10.2172/345047},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Dec 31 00:00:00 EST 1998},
month = {Thu Dec 31 00:00:00 EST 1998}
}
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Technical Report:
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DOI:  10.2172/345047
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  • The high-power RF systems for the Accelerator Production of Tritium (APT) program require high-power circulators at 350 MHz and 700 MHz to protect 1 MW Continuous Wave (CW) klystrons from reflected power. The 350 MHz circulator is based on the CERN, EXF, and APS designs and has performed very well. The 700 MHz circulator is a new design. Prototype 700 MHz circulators have been high-power tested at Los Alamos National Laboratory (LANL). The first of these circulators has satisfied performance requirements. The circulator requirements, results from the testing, and lessons learned from this development are presented and discussed.

  • No abstract prepared.

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    Communications & Power Industries LLC has designed and manufactured the VKP-8201A, a high peak power, high gain, VHF band klystron. The klystron operates at 201.25 MHz, with 5.0 MW peak output power, 34 kW average output power, and a gain of 36 dB. The klystron is designed to operate between 1.0 MW and 4.5 MW in the linear range of the transfer curve. The klystron utilizes a unique magnetic field which enables the use of a proven electron gun design with a larger electron beam requirement. Experimental and predicted performance data are compared.