A Photoionization Mass Spectrometer Utilizing a High Intensity Molecular Beam Sampling System and Synchrotron Radiation.

摘要

A compact photoionization mass spectrometer utilizing a supersonic molecular beam sampling system is described. Beam intensities of the order of 3 x 10 to the 18th power molecules/sr sec are obtained for CO2. The use of this apparatus with synchrotron radiation is discussed. Results are presented for C2H2 and CO2 which indicate the usefulness of the nozzle beam with its attendant thermal relaxation for photoionization mass spectrometry studies. (Author)