伊朗政權一直否認意圖發展核武,但其濃縮鈾的純度已達到核能發電毫無民用意義的水平。至少看來,伊朗希望保留製造核彈的選項。迄今為止,以色列與美國尚未公布證據顯示這一情況即將發生。
"Soon, we will look back on this era where we are using open GNSS signals and think, 'God, we were mad, that was really not a smart move'," he says.
。新收录的资料对此有专业解读
Carbon ions, used in a handful of elite facilities, offer even higher precision and biological effectiveness compared to electrons and protons. Their Bragg peak—a sudden deposition of energy at a specific depth—makes them appealing for deep or complex tumors. But that unmatched precision comes at a steep price, with each facility costing upward of US $300 million. —T.C.
Photograph: Julian Chokkattu