The present invention involves {HEAD ~ a grid} which allows {TAIL ~ the desired x rays} to pass through efficiently while blocking the undesirable scattered x rays, and a process for fabricating the grid 
allows
The present invention involves { HEAD ~ a grid } which allows { TAIL ~ the desired x rays } to pass through efficiently while blocking the undesirable scattered x rays , and a process for fabricating the grid
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH