X-ray investigation

He was a pioneer in the field of low-angle X-ray investigations of a-keratins.

In this respect it is similar to the risk from X-ray investigations except that the dose is delivered internally rather than from an external source such as an X-ray machine.

It is the first mineral to be discovered by X-ray methods alone, and thus it was named to honor Sir William Henry Bragg and Sir William Lawrence Bragg of Cambridge University, both were pioneers in the x-ray investigation of crystals.