PHERMEX electron gun development

Conference · Mon Aug 01 04:00:00 EDT 1983 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6886727

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 which injects, accelerates, and transports electrons to a tungsten target where Bremsstrahlung x-rays are generated for flash radiography of hydrodynamic systems. The goal of the electron gun program is to generate and transport a 200 ns, 1 MeV, 1 kA beam into the first PHERMEX accelerating cavity. The standard gun is operated at a pulse voltage of 550 keV; this limit is determined by internal breakdown in the vacuum insulator. This insulator has been redesigned and the gun has been pulsed at 750 keV without breakdown. At present, the current output is not limited by voltage but by a phenomenon called pulse shortening, which occurs at a voltage of ca. 650 keV. This paper discusses the results of an investigation into this phenomenon, describes the development program, design, and experimental arrangement of the injector, and presents an array of measured performance data.

• Research Organization: Los Alamos Nat.'l Lab., Los Alamos, NM 87545
• OSTI ID: 6886727
• Report Number(s): CONF-830311-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-30:4
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
ACCELERATOR FACILITIES
ACCELERATORS
BEAM CURRENTS
BEAM INJECTION
BREAKDOWN
CURRENTS
DATA
DESIGN
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELECTRON BEAM INJECTION
ELECTRON BEAM TARGETS
ELECTRON GUNS
ENERGY RANGE
EQUIPMENT
EVALUATED DATA
FREQUENCY RANGE
INDUSTRIAL RADIOGRAPHY
INFORMATION
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
LIMITING VALUES
LINEAR ACCELERATORS
MHZ RANGE
MHZ RANGE 01-100
NUMERICAL DATA
PERFORMANCE
RADIATION SOURCES
TARGETS
TUNGSTEN ISOTOPES
VACUUM SYSTEMS
X-RAY EQUIPMENT
X-RAY RADIOGRAPHY
X-RAY SOURCES