Patent ID: 7932491

Claim:
A mass spectrometer comprising: a. a pulsed ion source that generates an ion beam comprising a plurality of ions; b. a first timed ion selector that is positioned in a path of the ion beam, the first timed ion selector passing a first group of ions; c. a first ion mirror that is positioned in a path of the first group of ions, the first ion mirror generating a reflected ion beam comprising the first group of ions that at least partially compensates for an initial kinetic energy distribution of the first group of ions; d. a second timed ion selector that is positioned in a path of the reflected ion beam comprising the first group of ions, the second timed ion selector passing a second group of ions; e. a second ion mirror that is positioned in a path of the second group of ions, the second ion mirror generating a reflected ion beam comprising the second group of ions that at least partially compensates for an initial kinetic energy distribution of the second group of ions; f. a timed ion deflector that is positioned in a path of the reflected ion beam comprising the second group of ions, the timed ion deflector deflected the reflected ion beam; and g. a detector assembly comprising at least two ion detectors that is positioned in a path of the deflected ion beam, the detector assembly detecting the deflected ion beam comprising the second group of ions with the at least two ion detectors.