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Flight Region

A $90^{\rm o}$, 6 cm electromagnet selects parent species by their mass to charge ratio from ions generated by the source. Ion optics focus and translationally adjust the beam as it passes into the flight region. The mechanically chopped (3 kHz) laser radiation enters the vacuum system through a window at Brewster's angle and overlaps the ion beam for 50 cm. The ion beam is refocused with a lens stack before entering the second electromagnet.



Tim Gibbon
1999-09-06