Upgrade of input power coupling system for the SNS RFQ

Yoon W. Kang; Alexandre V. Vassioutchenko; Alexander V. Aleksandrov; Paul E. Gibson; Thomas W. Hardek; Chris Luck; Robert C. Peglow

Upgrade of input power coupling system for the SNS RFQ

Yoon W. Kang, Alexandre V. Vassioutchenko, Alexander V. Aleksandrov, Paul E. Gibson, Thomas W. Hardek, Chris Luck, Robert C. Peglow

Beam Instrumentation

Oak Ridge National Laboratory

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

A RF input power coupler system has been developed and installed as an upgrade of input RF coupling to the RFQ in the SNS linac front-end. The design employs two coaxial loop couplers for 402.5 MHz operation. Two couplers are used in parallel to power the accelerating structure, with up to 800 kW total peak power at 8% duty cycle. Each coupler loop has a coaxial ceramic window that is connected to each output of a magic-T waveguide hybrid splitter through a coaxial-to-waveguide transition. The coaxial loop couplers have been designed, manufactured, and high-power processed. This paper presents the following: RF and mechanical designs of the couplers and system, procedure and result of high power RF conditioning, and test and operation results of the upgraded system.

Original language	English
Pages	763-765
Number of pages	3
State	Published - 2008
Event	11th European Particle Accelerator Conference, EPAC 2008 - Genoa, Italy Duration: Jun 23 2008 → Jun 27 2008

Conference

Conference	11th European Particle Accelerator Conference, EPAC 2008
Country/Territory	Italy
City	Genoa
Period	06/23/08 → 06/27/08

Cite this

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title = "Upgrade of input power coupling system for the SNS RFQ",

abstract = "A RF input power coupler system has been developed and installed as an upgrade of input RF coupling to the RFQ in the SNS linac front-end. The design employs two coaxial loop couplers for 402.5 MHz operation. Two couplers are used in parallel to power the accelerating structure, with up to 800 kW total peak power at 8% duty cycle. Each coupler loop has a coaxial ceramic window that is connected to each output of a magic-T waveguide hybrid splitter through a coaxial-to-waveguide transition. The coaxial loop couplers have been designed, manufactured, and high-power processed. This paper presents the following: RF and mechanical designs of the couplers and system, procedure and result of high power RF conditioning, and test and operation results of the upgraded system.",

author = "Kang, {Yoon W.} and Vassioutchenko, {Alexandre V.} and Aleksandrov, {Alexander V.} and Gibson, {Paul E.} and Hardek, {Thomas W.} and Chris Luck and Peglow, {Robert C.}",

year = "2008",

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pages = "763--765",

note = "11th European Particle Accelerator Conference, EPAC 2008 ; Conference date: 23-06-2008 Through 27-06-2008",

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T1 - Upgrade of input power coupling system for the SNS RFQ

AU - Kang, Yoon W.

AU - Vassioutchenko, Alexandre V.

AU - Aleksandrov, Alexander V.

AU - Gibson, Paul E.

AU - Hardek, Thomas W.

AU - Luck, Chris

AU - Peglow, Robert C.

PY - 2008

Y1 - 2008

N2 - A RF input power coupler system has been developed and installed as an upgrade of input RF coupling to the RFQ in the SNS linac front-end. The design employs two coaxial loop couplers for 402.5 MHz operation. Two couplers are used in parallel to power the accelerating structure, with up to 800 kW total peak power at 8% duty cycle. Each coupler loop has a coaxial ceramic window that is connected to each output of a magic-T waveguide hybrid splitter through a coaxial-to-waveguide transition. The coaxial loop couplers have been designed, manufactured, and high-power processed. This paper presents the following: RF and mechanical designs of the couplers and system, procedure and result of high power RF conditioning, and test and operation results of the upgraded system.

AB - A RF input power coupler system has been developed and installed as an upgrade of input RF coupling to the RFQ in the SNS linac front-end. The design employs two coaxial loop couplers for 402.5 MHz operation. Two couplers are used in parallel to power the accelerating structure, with up to 800 kW total peak power at 8% duty cycle. Each coupler loop has a coaxial ceramic window that is connected to each output of a magic-T waveguide hybrid splitter through a coaxial-to-waveguide transition. The coaxial loop couplers have been designed, manufactured, and high-power processed. This paper presents the following: RF and mechanical designs of the couplers and system, procedure and result of high power RF conditioning, and test and operation results of the upgraded system.

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M3 - Paper

AN - SCOPUS:84898933942

SP - 763

EP - 765

T2 - 11th European Particle Accelerator Conference, EPAC 2008

Y2 - 23 June 2008 through 27 June 2008

ER -

Upgrade of input power coupling system for the SNS RFQ

Abstract

Conference

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