I am doing a project in messuring technology on sonoluminesence. Basicly Im going to try and get a stable single bubble and do as many messurements I can possibly think of on it. Temp, pressure, spectral analysis, energy in vs energy out, ionizing radiation ect. Im realy excited about it because I think sonoluminesence is fascinating.:tongue2: and offcourse visualy very cool The basic setup seems simple. Im going to use the best signal generator my prof can dig up for me, hook it up to 2 piezocheramic transducers that can manage up to 28khz and find a bottle with a resonanse frequence of about 22-25khz. I got all the details of the setup fairly worked out. I have a few question though that I havent been able to find answeres to. I hope some experimental physicist here have some experience with Sonoluminesence or someone that might point me in the right direction. Is there any easier way to create the bubble than using a pipette? Preferably I would like to keep the bottle sealed all the time to prevent to much regassing with air. Does anyone know of any study that shows light intensity in different fluids? I have found one that claims 85% H2SO4 regassed with Ar creates SBSL 2900 times as radiant as in plain water regassed with Ar. But I doubt I will be able to mess round with H2SO4 for this project since secure handling of H2SO4 isnt possible in the room we have been given. Is there any other suitable fluid with low vapour pressure and with few heteroatoms that is easier to handle that you can think of?? This might be a stupid question, but what is the easiet way to regas a fluid with Xe or Ar after I have degassed it? Given the short duration of the light pulses(a few picoseconds) what would be a suitable way to messure temp of the bubble in a time period fairly close to the light puls. It doesnt behave like a ideal black body.