Microbeam radiation therapy uses a lattice of kilo-voltage x-ray âmicro-beamletsâ. The beamlets are 100-300 microns apart (100 microns is roughly the width of a human hair) and each beamlet is 10-50 microns wide.
The National-Security-Law Expert Who Blocked Trump's Travel Ban The former federal prosecutor and deputy counsel to the Department of Homeland Security writes that the prohibition violates the Constitution.
President Donald Trumpâs executive order that, among other things, temporarily blocks immigration from seven âcountries of concernââIran, Iraq, Libya, Somalia, Sudan, Syria and Yemenâposes far-reaching consequences for American businesses with employees who are citizens of one of those countries.