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Drift -Tube Ion Mobility Measurements

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Presentation on theme: "Drift -Tube Ion Mobility Measurements"— Presentation transcript:

1 Drift -Tube Ion Mobility Measurements
o-o-o-o-o-o

2 C32+ C31+ C30+ C29+ Bowers and coworkers

3

4

5 Exploding Star Try to reproduce the stellar plasma in the laboratory

6 Focused laser pulse graphite disk He pulse

7 graphite disk skimmer hole into mass spectrometer carbon plasma
Rick Smalley

8 Mass spectrum of carbon in which C60 and C70 were first recognised as special
Rice Sussex NNC

9

10 32 carbon atom polyyne chain
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 32 carbon atom polyyne chain David Walton (Sussex)

11 carbon plasma

12 skimmer hole into mass spectrometer

13 graphite disk skimmer hole into mass spectrometer carbon plasma
Rick Smalley

14 Mass Spectrum of Carbon Vapour
C13 in ca (Hahn et al) C33 in a carbon arc 1961 (Hintenberger et al Rice Sussex NNC

15 Rice Sussex NNC

16

17 Chains and Fullerenes + ???

18 C32+ Bowers and coworkers

19 C32+ Bowers and coworkers

20 C32+ C31+ Bowers and coworkers

21 C32+ C31+ C30+ Bowers and coworkers

22 graphite disk skimmer hole into mass spectrometer carbon plasma
Rick Smalley

23 Plasma in lab Exploding Star
Try to reproduce the stellar plasma in the laboratory

24 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

25 At Sussex David Walton (shown here with a model of C24) and coworkers had synthesised polyyne chain molecules with up to 32 carbon atoms

26 Should produce long carbon chains
Graphite Target

27 Should produce long carbon chains
Graphite Target

28

29

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31 C32+ C31+ C30+ C29+ Bowers and coworkers

32 Drift -Tube Ion Mobility Measurements
o-o-o-o-o-o

33 Drift -Tube Ion Mobility Measurements
o-o-o-o-o-o

34 Exploding Star

35 We tried to reproduce, in the laboratory, the plasma round a cool carbon star by vapourising graphite with a laser

36 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

37

38


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