Accelerator mass spectrometry data processing

A computer dedicated to mass spectrometry registers the data given out by the mass spectrometer and converts them either into values of masses and peak intensities, or into total ionic current, temperatures, acceleration potential values, and so on. It is also capable of data processing. It allows calculation of average spectra and subtraction of one spectrum from another in order to eliminate the background noise or simply to emphasize the differences between two spectra. 

Fast atom bombardment mass spectrometry. Fast atom bom-bardment/mass spectrometry (FAB/MS) analyses were performed on a VG ZAB-HF mass spectrometer equipped with an Ion Tech fast atom gun. Xenon gas was activated to 8 kv and 1.5 mA ion current for the fast atom generation. An accelerating voltage of 8 kV was applied to the FAB source. The mass spectrometer was scanned from 800 to 80 amu using an exponential down scan mode at 5 seconds per decade with a 1 second interscan time. The data were recorded with a PDP 11/24 computer and were processed with VG 11/250 software. 

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