PHERMEX electron gun development

Conference · Fri Dec 31 23:00:00 EST 1982

DOI:https://doi.org/10.1109/TNS.1983.4332937· OSTI ID:6196757

Builta, L A; Elliott, J C; Moir, D C; Starke, T P; Vecere, C A

The PHERMEX facility is a 50-MHz standing-wave linear accelerator. Electrons are injected, accelerated, and transported to a tungsten target where bremsstrahlung x rays are generated for flash radiography of hydrodynamic systems. The purpose of this article is to describe the progress of PHERMEX electron gun development. The goal of this program is to generate and transport a 200-ns, 1-MV, 1-kA electron beam into the first PHERMEX accelerating cavity. The standard gun is operated at a pulse voltage of 550 kV, which is the limit determined by internal breakdown of the vacuum insulator. This insulator has been redesigned, and the gun has been pulsed at 750 kV without internal breakdown. At present, the current output is not limited by voltage but by a phenomenon called pulse shortening, which occurs at a pulse voltage of approximately 650 kV. The phenomenon has been investigated and the results are presented.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6196757
• Report Number(s): LA-UR-83-844; CONF-830311-58; ON: DE83010081
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
ACCELERATORS
BEAM CURRENTS
BEAM FOCUSING MAGNETS
BEAM INJECTION
BEAM PULSERS
BEAMS
CURRENTS
DATA
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRON BEAMS
ELECTRON GUNS
ENERGY RANGE
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
KEV RANGE
KEV RANGE 100-1000
KILO AMP BEAM CURRENTS
LEPTON BEAMS
LINEAR ACCELERATORS
MAGNETS
NUMERICAL DATA
PARTICLE BEAMS
PERFORMANCE
RADIATION SOURCES
X-RAY EQUIPMENT
X-RAY SOURCES