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Design and experimental validation of a compact collimated Knudsen source.
Steinar H W Wouters1, Gijs Ten Haaf1, Peter H A Mutsaers1
1Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
The Review of Scientific Instruments
|September 3, 2016
Summary
This study presents a simple collimated Knudsen source for rubidium beams. The source demonstrates excellent performance, achieving high flux and matching theoretical predictions for temperature scaling.
Area of Science:
- Atomic physics
- Beam source technology
Background:
- Recirculating sources are complex.
- Collimated Knudsen sources offer a simpler alternative.
Purpose of the Study:
- To design and evaluate a collimated Knudsen source for rubidium.
- To measure beam flux, velocity distribution, and brightness.
- To validate performance against theoretical predictions.
Main Methods:
- Constructed a collimated Knudsen source.
- Measured beam properties (flux, transverse velocity distribution, brightness) at varying temperatures.
- Compared experimental data with theoretical models and simulations.
Main Results:
- Flux and brightness scale with source temperature as predicted.
- Transverse velocity distribution matches simulated data in transparent operation.
- Achieved a flux exceeding 10^13 s^-1 at 433 K.
Conclusions:
- The collimated Knudsen source offers a simple and effective design.
- Experimental results validate the theoretical performance scaling.
- The source is capable of producing high-flux rubidium beams.
