Direct injection supersonic cluster beam source for FT‐ICR studies of clusters

A miniaturized pulsed supersonic beam source has been developed using laser vaporization of a computer‐controlled target disk, producing intense beams of cluster ions with excellent repeatability and control. Due to its small size and narrow pulse width, the entire source is adequately pumped by a s...

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Bibliographic Details
Published in:Review of scientific instruments 1990-12, Vol.61 (12), p.3686-3693
Main Authors: Maruyama, Shigeo, Anderson, Lila R., Smalley, Richard E.
Format: Article
Language:English
Subjects:
640301 - Atomic, Molecular & Chemical Physics- Beams & their Reactions
ABLATION
BEAM INJECTION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CLUSTER BEAM INJECTION
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DESIGN
EPITAXY
Exact sciences and technology
FLUID FLOW
Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
ION CYCLOTRON RESONANCE SPECTROSCOPY
ION SOURCES
ION SPECTROSCOPY
LASER-PRODUCED PLASMA
MOLECULAR BEAM EPITAXY
Physics
PLASMA
PULSE TECHNIQUES
SPECTROSCOPY
SUPERSONIC FLOW
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Description
Summary:A miniaturized pulsed supersonic beam source has been developed using laser vaporization of a computer‐controlled target disk, producing intense beams of cluster ions with excellent repeatability and control. Due to its small size and narrow pulse width, the entire source is adequately pumped by a single 170 l /s turbopump. The resultant vacuum quality permits this source to be attached to a Fourier transform ion cyclotron resonance apparatus (FT‐ICR) such that the supersonic cluster ion beam is directly injected. The result is a powerful but simple FT‐ICR instrument of wide applicability. The new source is suited as well for a variety of other uses such as molecular beam epitaxy.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1141536