This is an Android version of my iPhone app Ug Calc.

It is only useful for Industrial Radiographers.  It calculates the Geometric Unsharpness (Ug)  of a radiograph.  Geometric Unsharpness is also referred to sometimes as Penumbral Shadow.

The app is straight forward.  You just enter the source side of the object to film distance, the source side of object to source distance, and the diagonal size of the source and hit enter.

The app does not collet any data or talk to the internet.

The link to the app is below.

Link to Ug Calculator for Android