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.
Here are all the legal problems with Trump's revised travel ban. SEATTLE (AP) â Some of the states that helped derail President Trump's first travel ban are mounting efforts to block his second one, saying that while the new order applies to fewer people, it's infected with the same legal problems.