2009/11/2 Abd ul-Rahman Lomax <[email protected]>: > At 01:55 PM 11/1/2009, Michel Jullian wrote: >> >> 3/ Their tubular cell geometry inspired to me a dirt cheap Mylar >> protected cell design for your kit, criticisms welcome: >> >> - a simple plastic or glass tube, open at both ends, with its bottom >> end smooth (no burrs), e.g. a test tube with its closed end cut off, >> used upside down. >> - wrap the Mylar film on the bottom of the tube, so that it forms a >> flat horizontal window at the bottom, and the rest of the film is >> folded back and taped on the tube, with all its edges reaching above >> the water line to contain any electrolyte leakage >> - put your detector sandwich flat under the Mylar window, and tape it >> to the tube too >> - install your electrodes like Oriani did (cathode rests on the bottom >> Mylar window, anode above it) >> >> Admittedly ugly, but no glue or gasket or other exotic material in >> contact with the electrolyte, and think of the money you save :) > > Interesting, but .... remember, I want to watch the cathode with a > microscope.
Precisely, a thin Mylar window --which costs you close to zero (maybe even slightly negative if implemented as suggested above since you're saving on the cell bottom!)-- is just the thing for that, and for IR imaging too as the presently discussed SPAWAR hot spot work shows. The back of the cathode does seem to be the place to watch closely, whether in terms of light or particle emissions! Michel
