10:44 Sep 13, 2010 

on only two other websites, which are closely related to the Question text (replace "installations du CEA" par "Valrho"), I suspect there is some confusion and they are talking about one and the same thing. Add to that the fact that Dosicard appears to be a proprietary name (see previous discussion of French use of trade names).

10:35 Sep 13, 2010 

Strictly speaking, the badge is the finished article, as it were. However, at the heart of the badge is the film, which as far as I am aware, is a more or less conventional photographic emulsion which is sensitive to the energetic particles associated with radioactive decay. See for example
http://en.wikipedia.org/wiki/Ionizing_radiation under "monitoring".
Although the emulsions may be broadly similar, one type of radiological film cumulatively absorbs radioactive decay particles over time (the dosimeter), while the other, more familiar term, applies to the X-ray film used in hospitals.

10:00 Sep 13, 2010 

Ah, that is interesting because I thought that's what the "dosicard" was! Obviously not... I think you are probably right though.