Warm greetings from a first time poster, Thank you for looking. I hope I posted in the correct category and apologize if I did not. My question revolves around a late 19th century painting on wood panel made of cypress with oak strapping (2.6cm thick). I'm having the panel radiographically X-rayed to produce an image of the under drawing. I would like to know if anyone here has experience with this type of work. Specifically I would like to know what kVp and mAs settings you would use and for what duration? Any thoughts would be greatly appreciated.