{HEAD ~ A filter} for an x ray device to shape an intensity profile of x ray radiation emanating from an x ray source of the device has {TAIL ~ a filter body} made of a material that attenuates x ray radiation 
has
{ HEAD ~ A filter } for an x ray device to shape an intensity profile of x ray radiation emanating from an x ray source of the device has { TAIL ~ a filter body } made of a material that attenuates x ray radiation
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH