Thanks. Still I wonder how it was possible to xray a finger using (if I guess correctly form what's written in the article) a single sticky tape without it emit

Thanks. Still I wonder how it was possible to xray a finger using (if I guess correctly form what's written in the article) a single sticky tape without it emitting enough radiations to be dangerous for people unrolling a lot of sticky tape for work, with similar speed of 3 cm/s (this is more or less the "natural" unrolling speed when you are packing something requiring large strips).