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.
Related Coverage. 1  Amid âTrump Effectâ Fear, 40% of Colleges See Dip in Foreign Applicants MARCH 16, 2017. 2  Highlights From Court Ruling Halting Trumpâs Revised Travel Ban MARCH 15, 2017. 3  Trumpâs New Travel Ban May Be Hard to Beat. But States Are Trying.