1. Field of the Invention
This invention relates to mass spectrometry systems. In recent years there has arisen a need to analyze small sample volumes. This need arises, for example, where there is only a limited quantity of a unique sample, the sample being distributed in a particulate or other form in a matrix. Thus modern materials analysis problems require a spatial resolution over the sample region of 1 micron or less, together with the ability to find the specific locations of the sample in the matrix prior to analysis.
2. Description of the Prior Art
Most known magnetic sector or quadrupole mass spectrometry systems do not include means for lateral imaging of the sample surface combined with precise means of sample manipulation controlled through the image. Those that do, consume significant amounts of sample material in the process thus destroying the areas from which detailed information is sought.