laser ablation, atomic beam, calcium, velocity distribution
We present measurements of the velocity distribution of calcium atoms in an atomic beam generated using a dual-stage laser back-ablation apparatus. Distributions are measured using a velocity selective Doppler time-of-flight technique. They are Boltzmann-like with rms velocities corresponding to temperatures above the melting point for calcium. Contrary to a recent report in the literature, this method does not generate a subthermal atomic beam.
Original Publication Citation
A. Denning, A. Booth, S. Lee, M. Amonson, and S. D. Bergeson. Comment on "Generation of cold low divergent atomic beam of indium by laser ablation." Rev. Sci. Instrum. 80 (4), 047101 (2009).
BYU ScholarsArchive Citation
Denning, A.; Booth, A.; Lee, S.; Amonson, M.; and Bergeson, Scott D., "Comment on "Generation of Cold Low Divergent Atomic Beam of Indium by Laser Ablation"" (2009). All Faculty Publications. 1832.
American Institute of Physics
Physical and Mathematical Sciences
Physics and Astronomy
© 2009 American Institute of Physics. This article is the Version of Record published by AIP publishing in Review of Scientific Instruments in 2009, available online at http://dx.doi.org/10.1063/1.3100177
Copyright Use Information