Question

A micro-focus 2D x-ray inspection is to be undertaken on a square (8mm x 8mm) mild steel plate of thickness 20mm. The source to detector distance is fixed at 0.5m and the detector is an array 2048 x 2048 pixels and dimensions 100mm x 100mm. The focal spot size of the x-ray tube is 30μm. A geometric unsharpness value (Ug) of better than 0.01mm is required. Calculate the required source to object distance.

Answer 1

Cfven- rckness) 84ea1blafe thickness ( Scouytle 20M3 20X10 m Souorce to oltfecto distrincel oSM 30106m FOcal spot sze ct 30um Uow Constde minimum unsharb ness calue whieh s regutore d is o.2mm So unshartbhess (Ug= a also whisee d iS the distance betreeen Sourree an fxt d = 30 P 10 02 d 3 10 S 30um.