x-rays early uses and protection measures

Discuss x-rays early uses and protection measures
discuss x-rays modern day uses and protection measures

research the history of x-rays and discuss its early usage and protection measures with that of today’s current usage and protection measures. Please try to look for information that would not necessarily be previously known.

web site that can be used is http://www.ndt-ed.org/EducationResources/CommunityCollege/Radiography/Introduction/history.htm
128.