Raman scattering try  http://www.aps.org/BAPSMAR96/abs/S2770004.html  also
http://www.sc.ic.ac.uk/Publications/YB.Li.html
regards
Robert Beasley
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| From: George N. Allen 
 Richard's post refers to a laser, in terms that indicate
| something had previously been posted about it, but I never saw it.
|  I have a Beck machine, which I have not yet put to use,
| partly bbecause of the uncertainties raised by the discussion.
| Subject: raman scattering and particle size?
>From Richard
| We can get the laser, and now we need to know how to learn about Raman
| scattering and how to use that to determine the particle size and
| concentration of CS.  Anyone have a pointer to info?