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.
Did President Jimmy Carter ban Iranian nationals from entering the U.S. in a manner similar to Donald Trump's proposed ban on Muslims? Kim LaCapria. Claim: President Jimmy Carter banned Iranian nationals from entering the U.S. in a manner similar to Donald Trump's proposal to ban the entry of Muslims. WHAT'S TRUE: President Jimmy Carter announced sanctions against Iran in 1980, including the cancellation of visas for Iranian citizens. WHAT'S FALSE: Carter's sanctions were equivalent to Donald Trump's suggestion that Muslims be banned from entering or immigrating to the U.S.