Hi all - I had a lot of requests for this FAQ as well as several suggestions to post it to RADSAFE - so I have just done so. This is the latest (November) FAQ which I post monthly to the SAFETY list. If people want me to post it monthly here as well (and the listowner has no objections) let me know (at carolla@mrg.sas.ab.ca). Enjoy - Carolla carolla@mrg.sas.ab.ca