September 2019

Conference Paper

Final Conversion of the Spallation Neutron Source Extraction Kicker Pulse Forming Network to a High Voltage Solid-State Switch

By:
Morris, Ben W; Saethre, Robert B
Page Number:
240-242
Book Title:
North American Particle Accelerator Conference (4th)
Publication Date:
September 2019
Publisher Location:
JACoW Publishing, Geneva, Switzerland, United States of America
Conference Name:
2019 NORTH AMERICAN PARTICLE ACCELERATOR CONFERENCE (NAPAC2019)
Conference Location:
Lansing, Michigan, United States of America
Conference Sponsor:
IEEE and APS
View DOI Listing:
https://doi.org/10.18429/JACoW-NAPAC2019-MOPLO03

Abstract

The Spallation Neutron Source (SNS) extraction kicker 60Hz pulsed system uses 14 Blumlein pulse-forming network (PFN) modulators that require timing synchronization with stable rise times. A replacement design has been investigated and the kickers have been converted over to use a solid-state switch design, eliminating the lifetime and stability issues associated with thyratrons and subsequent maintenance costs. All kickers have been converted, preventing thyratron jitter from impacting the beam performance and allowing higher-precision target impact. This paper discusses the completion of the conversion of the high-voltage switch from a thyratron to a solid-state switch with improved stability of the extraction system and associated accelerator beam stability.

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