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Posted: Jan 15, 2013
Molecular Beam Mass Spectrometer for Reactive Process Monitoring
(Nanowerk News) The Hiden HPR-60 mass spectrometer is a
research tool conceived specifically for direct
analysis of ions, radicals and neutral species
in reactive processes, and will be of interest
to researchers in the fields of plasma and
transient chemistry, reaction kinetics,
catalytic processes. The system typically
operates in pressure regimes from 5 mbar to
5 bar, and mass spectrometer options
provide for measurement of neutrals, positive
ions, negative ions and ion energies, with
choice of mass range up to 2500 amu.
Hiden HPR-60 system with EQP plasma ion monitor.
The system samples direct from the process using a sequence of up to three pressure reduction
stages with intermediate aligned beam skimmer cones, providing a sampling range from 5 mbar to
100 mbar for the two-stage system and to 5 bar with the third stage. The configuration forms a
supersonic molecular beam for direct, near collision-free transfer of sampled species direct to the
UHV-operating mass spectrometer. The potential of each skimmer stage can be independently
biased to enhance beam focussing and transmission of ionised species.
An integrated molecular beam chopper is available as a system option for automated
simultaneous acquisition of foreground/background data, enabling real time display of the
molecular beam intensity with instantaneous subtraction of the beam background signal. Vacuum
system operation is fully automated and systems are provided with integral over-pressure
protection. A custom-engineering service is available for design of any required system-to-process
For further information on this or other Hiden products please contact Hiden Analytical at
[email protected] or visit the main website at www.HidenAnalytical.com.