Abstract
A miniature mass spectrometer is described. The analyser structure has dimensions 44 mm × 28 mm × 12 mm and, with the vacuum chamber and magnet, weighs 2.2 kg. The sensitivity to helium is 1 · 10 −4 A torr −1 and it is maintained up to an operating pressure of 5 · 10 −4. A combination of a short ion path length and an electrostatic energy selector reduces the background current to a negligible level. The compact arrangement is achieved by the use of an ion source in which the ions traverse trochoidal paths, and an ion-energy-sensitive collector at the faces of a 90° magnetic prism.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Mass Spectrometry and Ion Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
