25–30 Aug 2024
Hilton Chicago
America/Chicago timezone

Particle measurement on all-metal gate valve for CEBAF beamline via laser-based particle counter

THPB080
29 Aug 2024, 16:00
2h
Boulevard (Hilton Chicago)

Boulevard

Hilton Chicago

720 South Michigan Ave Chicago, IL 60605 USA
Poster Presentation MC4.8 Superconducting RF Thursday Poster Session

Speaker

Dr Mingqi Ge (Thomas Jefferson National Accelerator Facility)

Description

The Viton gate valves installed in the CEBAF beamline have significantly degraded after long-term operation in a radiation environment, generating numerous particles that cause heavy contamination and strong field emission. As a replacement, all-metal gate valves have been proposed for installation in the CEBAF beamline. In this paper, we present thorough comparison tests between the Viton gate valves and the all-metal gate valves, including evaluations of particle levels, aging tests of the gate valves, and analysis of the particle material.

Author

Dr Mingqi Ge (Thomas Jefferson National Accelerator Facility)

Co-authors

Anne-Marie Valente-Feliciano (Thomas Jefferson National Accelerator Facility) Roger Ruber (Thomas Jefferson National Accelerator Facility) Rong-Li Geng (Thomas Jefferson National Accelerator Facility) Shreyas Balachandran (Florida State University) Tom Powers (Thomas Jefferson National Accelerator Facility)

Presentation materials

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