IPAC2015 - List of Authors (Barkley, W.C.)

Paper	Title	Page
WEPTY084	Cooling Systems for the New 201.25 MHz Final Power Amplifiers at Los Alamos Neutron Science Center (LANSCE)	3479
	W.C. Barkley, C.E. Buechler, J.T.M. Lyles, A.C. Naranjo LANL, Los Alamos, New Mexico, USA D. Baca, R.E. Bratton Compa Industries, Inc., Los Alamos, New Mexico, USA
	Funding: Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by the University of California for the U.S. Department of Energy under contract W-7405-ENG-36. Two new 201.25 MHz RF Final Power Amplifiers (FPAs) have been designed, fabricated, assembled, installed and successfully tested at the Los Alamos Neutron Science Center (LANSCE), in Module 2 of the Drift Tube Linac. These production units were fabricated at Continental Electronics Corporation. In this paper, we summarize the FPAs air and water cooling requirements and cooling systems.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY084
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WEPWI002	Installation and Operation of Replacement 201 MHz High Power RF System at LANSCE	3485
	J.T.M. Lyles, W.C. Barkley, J. Davis, D. Rees, G. M. Sandoval, Jr. LANL, Los Alamos, New Mexico, USA R.E. Bratton, R.D. Summers Compa Industries, Inc., Los Alamos, New Mexico, USA
	Funding: Work supported by the United States Department of Energy, National Nuclear Security Agency, under contract DE--AC52--06NA25396. The LANSCE RM project has restored the linac to high power capability after the power tube manufacturer could no longer provide triodes that consistently met our high average power requirement. Diacrodes® now supply RF power to two of the four DTL tanks. These tetrodes reuse the existing infrastructure including water-cooling systems, coaxial transmission lines, high voltage power supplies and capacitor banks. The power amplifier system uses a combined pair of LANL-designed cavity amplifiers using the TH628L Diacrode® to produce up to 3.5 MW peak and 420 kW of mean power. Design and prototype testing was completed in 2012, with commercialization following in 2013. The first installation was completed in 2014 and a second installed system is ready to test. The remaining replacement will follow in 2016. Meanwhile, there is a hybrid of old/new amplifiers until the changeover is complete. Operating results of the replacement system are summarized, along with observations from the rapid--paced installation project.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWI002
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Cooling Systems for the New 201.25 MHz Final Power Amplifiers at Los Alamos Neutron Science Center (LANSCE)

3479

W.C. Barkley, C.E. Buechler, J.T.M. Lyles, A.C. Naranjo
LANL, Los Alamos, New Mexico, USA
D. Baca, R.E. Bratton
Compa Industries, Inc., Los Alamos, New Mexico, USA

Funding: Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by the University of California for the U.S. Department of Energy under contract W-7405-ENG-36.
Two new 201.25 MHz RF Final Power Amplifiers (FPAs) have been designed, fabricated, assembled, installed and successfully tested at the Los Alamos Neutron Science Center (LANSCE), in Module 2 of the Drift Tube Linac. These production units were fabricated at Continental Electronics Corporation. In this paper, we summarize the FPAs air and water cooling requirements and cooling systems.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY084

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPWI002

Installation and Operation of Replacement 201 MHz High Power RF System at LANSCE

3485

J.T.M. Lyles, W.C. Barkley, J. Davis, D. Rees, G. M. Sandoval, Jr.
LANL, Los Alamos, New Mexico, USA
R.E. Bratton, R.D. Summers
Compa Industries, Inc., Los Alamos, New Mexico, USA

Funding: Work supported by the United States Department of Energy, National Nuclear Security Agency, under contract DE--AC52--06NA25396.
The LANSCE RM project has restored the linac to high power capability after the power tube manufacturer could no longer provide triodes that consistently met our high average power requirement. Diacrodes® now supply RF power to two of the four DTL tanks. These tetrodes reuse the existing infrastructure including water-cooling systems, coaxial transmission lines, high voltage power supplies and capacitor banks. The power amplifier system uses a combined pair of LANL-designed cavity amplifiers using the TH628L Diacrode® to produce up to 3.5 MW peak and 420 kW of mean power. Design and prototype testing was completed in 2012, with commercialization following in 2013. The first installation was completed in 2014 and a second installed system is ready to test. The remaining replacement will follow in 2016. Meanwhile, there is a hybrid of old/new amplifiers until the changeover is complete. Operating results of the replacement system are summarized, along with observations from the rapid--paced installation project.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWI002

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)