Aside from its original application to lunar stability, the Hill equation appears in many settings including the modeling of a quadrupole mass spectrometer, as the one-dimensional Schr�dinger equation of an electron in a crystal and in accelerator physics.
12.
TGA ( Thermogravimetry ) or DSC ( Differential scanning calorimetry ), with a fast Quadrupole Mass Spectrometer ( QMS ) the detection of gas separation and identification of the separated components are possible in exact time correlation with the other thermal analysis signals.
