At 04:16 pm 19/08/2005 +0200, Knuke wrote: >Moin Frank, > > Well, maybe, but probably not. At least, not with this given set of > data. The noble gases are most generally used in light generating tubes > at low atmospheres because they ionize easily enough, and then return > to their original molecular state unchanged. In other words, they are > very difficult gases to contaminate with other substances. That is why > we call them Noble Gases. If the electrons produced by the collapse of > the bubble are sufficient to cause the gas inside the bubble to ionize, > then what you are looking at is the light emitted from a straight > forward plasma reaction, and nothing more. At least, this is the most > commonly accepted explanation offered up by the current researchers, and > I find it quite plausible.
If the above is correct then presumably the spectrum of the sonoluminescence will be different for different noble gases. Is it, and if so, in what way? - and do you know of a URL which might give this information? Frank Grimer
