Horace Heffner wrote:
> 5. By making the grid elements small, say under 0.1 cm, there will be a > clear marking of a scale on the micrographs and this will hopefully assist > in counting and locating tracks, although the hole diameter should of course > be larger that the thickness of the primary metallic layer (base), > Is this supposed to be 0.1 mm? With cumulative detectors like this, such as x-ray film and CR39, I recommend some sort of mask; that is, something that blocks the particles you are trying to detect, and casts a shadow. Not seeing particles is a good as seeing them, in a sense. Italian researchers used dental x-ray film to detect x-rays in aqueous electrochemical cells. The anode cast a shadow on the film, and they used this shadow to make various analyses. It was remarkable how much information they got out the x-rays. - Jed
