Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system

John Moss; Mark Champion

Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system

John Moss, Mark Champion

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The Spallation Neutron Source (SNS) high power radiofrequency (HPRF) system operates with high reliability to support the goals of the SNS user program. In recent operational periods the availability of the HPRF system has exceeded 97 percent while the neutron source availability overall is typically greater than 90 percent. SNS has a unique set of 92 HPRF stations that operate at either 402.5 MHz or 805 MHz with peak output power ranging from 550 kW to 5 MW and average power ranging from 49.5 kW to 450 kW. The HPRF transmitters consist of chassis-mounted power supplies, solid-state amplifiers and other equipment that support the operation of the klystrons that ultimately provide the RF power to the accelerating structures. Management of the operation and maintenance of the HPRF system has increasingly focused on reliability and sustainability in recent years. Techniques for klystron lifetime preservation and optimization of transmitter reliability have been developed and will be described.

Original language	English
Title of host publication	IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference
Publisher	Joint Accelerator Conferences Website - JACoW
Pages	756-759
Number of pages	4
ISBN (Electronic)	9783954501823
State	Published - Jul 2017
Externally published	Yes
Event	8th International Particle Accelerator Conference, IPAC 2017 - Bella Conference Center, Denmark Duration: May 14 2017 → May 19 2017

Publication series

Name	IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference

Conference

Conference	8th International Particle Accelerator Conference, IPAC 2017
Country/Territory	Denmark
City	Bella Conference Center
Period	05/14/17 → 05/19/17

Funding

_____________________ * This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). † [email protected]

Funders	Funder number
U.S. Department of Energy
Office of Science
Basic Energy Sciences	DE-AC05-00OR22725

Cite this

Moss, J., & Champion, M. (2017). Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system. In IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference (pp. 756-759). (IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference). Joint Accelerator Conferences Website - JACoW.

Moss, John ; Champion, Mark. / Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system. IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference. Joint Accelerator Conferences Website - JACoW, 2017. pp. 756-759 (IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference).

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abstract = "The Spallation Neutron Source (SNS) high power radiofrequency (HPRF) system operates with high reliability to support the goals of the SNS user program. In recent operational periods the availability of the HPRF system has exceeded 97 percent while the neutron source availability overall is typically greater than 90 percent. SNS has a unique set of 92 HPRF stations that operate at either 402.5 MHz or 805 MHz with peak output power ranging from 550 kW to 5 MW and average power ranging from 49.5 kW to 450 kW. The HPRF transmitters consist of chassis-mounted power supplies, solid-state amplifiers and other equipment that support the operation of the klystrons that ultimately provide the RF power to the accelerating structures. Management of the operation and maintenance of the HPRF system has increasingly focused on reliability and sustainability in recent years. Techniques for klystron lifetime preservation and optimization of transmitter reliability have been developed and will be described.",

author = "John Moss and Mark Champion",

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Moss, J & Champion, M 2017, Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system. in IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference. IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference, Joint Accelerator Conferences Website - JACoW, pp. 756-759, 8th International Particle Accelerator Conference, IPAC 2017, Bella Conference Center, Denmark, 05/14/17.

Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system. / Moss, John; Champion, Mark.
IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference. Joint Accelerator Conferences Website - JACoW, 2017. p. 756-759 (IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Moss J, Champion M. Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system. In IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference. Joint Accelerator Conferences Website - JACoW. 2017. p. 756-759. (IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference).

Techniques for achieving high reliability operation of the spallation neutron source high power radio-frequency system

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