Portable mass-spectrometer employing electric quadrupole field for ion mass selection.

• Control and diagnostics of technological processes or applications making use of vacuum or controlled gas atmosphere.
• Vacuum leak detection.
• Surphace cleanness and gas adsorption-desorption measurements,
• chemical analysis in conjunction with laser ablation.

• Mass range 1-200 atomic mass units (amu),
• resolution aprox. 0.5 amu,
• minimum detectable partial pressure 10-12 Torr,
• operating pressure range 10-4 to UHV.