A simple counter-flow cooling system for a supersonic free-jet beam source assembly

A simple design for an inexpensive, cooled, free-jet beam source is described. The source assembly features an integrated cooling system as supplied by a counter-flow of chilled nitrogen, and is composed primarily of off-the-shelf tube fittings. The design facilitates rapid implementation and eases...

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Bibliographic Details
Published in:Review of scientific instruments 2016-05, Vol.87 (5), p.053301-053301
Main Authors: Barr, M., Fahy, A., Martens, J., Dastoor, P. C.
Format: Article
Language:English
Subjects:
ALIGNMENT
APERTURES
Assembly
BEAMS
Control stability
COOLING
Cooling systems
DESIGN
ENGINEERING
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
INTEGRATED COOLING SYSTEMS
JETS
LENGTH
NITROGEN
Scientific apparatus & instruments
STABILITY
STAGNATION
TEMPERATURE CONTROL
Tube fittings
TUBES
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Description
Summary:A simple design for an inexpensive, cooled, free-jet beam source is described. The source assembly features an integrated cooling system as supplied by a counter-flow of chilled nitrogen, and is composed primarily of off-the-shelf tube fittings. The design facilitates rapid implementation and eases subsequent alignment with respect to any downstream beamline aperture. The source assembly outlined cools the full length of the stagnation volume, offering temperature control down to 100 K and long-term temperature stability better than ±1 K.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4948391