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

Journal Article · Thu Nov 01 04:00:00 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), Journal Name: Review of Scientific Instruments; (USA) Vol. 61:11; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

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