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.
Steve Bannon. Steve Bannon, the White House chief strategist, has left the Trump administration and returned to Breitbart News, the right-wing website he led before joining President Donald Trump's campaign last year.