A 500 KV INVERTED GEOEMTRY FEEDTHROUGH FOR A HIGH VOLT-AGE DC ELECTRON GUN

Conference · Mon Aug 01 04:00:00 EDT 2022

DOI:https://doi.org/10.2172/2205166· OSTI ID:2205166

Hernandez-Garcia, C. ^[1]; Bullard, D. B. ^[1]; Grames, J. M. ^[1]; Palacios Serrano, G. G. ^[1]; Poelker, M. ^[1]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

This contribution reports on the development of an unprecedented inverted-insulator with cable connector for reliably applying 500 kV dc to a future polarized beam photogun, to be designed for operating at 350kV without field emission. Such a photogun design could then be used for generating a polarized electron beam to drive a spin-polarized positron source as a demonstrator for high energy nuclear physics at JLab. There are no commercial cable connectors that fit the large inverted insulators required for that voltage range. Our proposed concept is based on a modified epoxy receptacle with intervening SF6 layer and a test electrode in a vacuum vessel.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 2205166
• Report Number(s): JLAB-ACC-22-3809; DOE/OR/23177-7278
• Country of Publication: United States
• Language: English