| 摘要 |
A mass spectrometer is disclosed comprising a cooling cell for cooling ions so as to reduce their kinetic energy. The cooling cell comprises: a chamber for receiving the ions or for generating the ions therein, wherein said chamber is formed from walls defining a substantially enclosed region; and a cooling jacket surrounding said chamber, wherein said cooling jacket is arranged and configured to contain a cooling fluid and so as to remove heat from one or more walls of the chamber. The mass spectrometer further comprises a mass analyzer for receiving ions from the cooling cell after they have been cooled. The present invention reduced the kinetic energy of the ions prior to mass analysis and hence improves the resolution of the mass analyzer. The mass analyzer is preferably a time of flight mass analyzer. |
