A high-duty-cycle long-pulse electron gun for electron accelerators

Journal Article · Thu Nov 01 00:00:00 EST 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141532· OSTI ID:6315048

Ebrahim, N A; Thrasher, M H ^[1]

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1. Chalk River Nuclear Laboratories, Atomic Energy of Canada Limited, Chalk River, ON (Canada)

We describe the design and operation of a long-pulse (200--300 {mu}s), high-duty-cycle (5%--6%), 8-mm-diam dispenser cathode, electrically isolated, modulating Wehnelt electron gun for applications in a high-average-power electron linear accelerator. The electron optics design was optimized with computer modeling of the electron trajectories and equipotentials. The gun performance was established in a series of experimental measurements in a test stand. Excellent pulse-to-pulse emission current reproducibility and electron-beam pulse profile stability were obtained.

• OSTI ID: 6315048
• Journal Information: Review of Scientific Instruments; (USA), Vol. 61:11; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
LINEAR ACCELERATORS
ELECTRON GUNS
BEAM OPTICS
COMPUTERIZED SIMULATION
DESIGN
ELECTRON EMISSION
PULSE TECHNIQUES
TESTING
ACCELERATORS
EMISSION
SIMULATION
640301* - Atomic
Molecular & Chemical Physics- Beams & their Reactions
430100 - Particle Accelerators- Design
Development
& Operation