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Conclusions

It has been demonstrated that a CW jet-cold fast ion beam source can be constructed, capable of creating molecular ions with temperatures typically around 100 K. It has been shown that a continuous jet can be formed, ionised immediately after supersonic expansion, skimmed and a photofragment spectrum recorded. The spectroscopic linewidths and signal to noise ratios are seen to be comparable to those obtained using a conventional EI source.



Tim Gibbon
1999-09-06