Modeling the gas flow upstream and in the sampling nozzle of the inductively coupled plasma mass spectrometer via the Direct Simulation Monte Carlo algorithm

The Direct Simulation Monte Carlo algorithm has been applied to the flow of neutral argon gas through the first vacuum stage of the Inductively Coupled Plasma Mass Spectrometer. Good agreement is found between the simulation results and the equations of fluid dynamics, including the approximate hemi...

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Bibliographic Details
Published in:Spectrochimica acta. Part B: Atomic spectroscopy 2009-03, Vol.64 (3), p.215-221
Main Authors: Spencer, Ross L., Krogel, Jaron, Palmer, Jamie, Payne, Adam, Sampson, Andrew, Somers, William, Woods, Charles N.
Format: Article
Language:English
Subjects:
Direct-Simulation Monte Carlo
Gas flow simulation
Inductively coupled plasma mass spectrometry
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Summary:The Direct Simulation Monte Carlo algorithm has been applied to the flow of neutral argon gas through the first vacuum stage of the Inductively Coupled Plasma Mass Spectrometer. Good agreement is found between the simulation results and the equations of fluid dynamics, including the approximate hemispherical sink model of Douglas and French. The simulation reveals details of boundary layer formation in the nozzle, including a reduction in the total flow through the nozzle of about 15% from the ideal value calculated by Douglas and French.
ISSN:0584-8547
1873-3565
DOI:10.1016/j.sab.2009.01.003