Speakers
Description
The Los Alamos Neutron Science Center (LANSCE) uses forty-four (44) 1.25-MW 805-MHz klystrons to power its side-Coupled Cavity (CCL) linear accelerator (LINAC). In recent years, the facility has experienced a significant klystron failure rate and dwindling hot spare inventory, producing ample beam downtime and reliability risk. This paper presents a LANSCE case study on rebuilding a klystron, a first attempt to revitalize a manufacturing technology that was vibrant for decades as LANSCE. We present data collected during the klystron’s initial testing alongside pre-failure (i.e. live) performance. Our failure analysis investigates possible causes given observed irregularities in the data collected. Rebuilding efforts to address all failure modes are presented, highlighting our troubleshooting and refurbishment process, methods, and techniques. We end our discussion by presenting post-rebuild results, lessons learned, and potential future improvements.
Funding Agency
US DOE & LDRD
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