أرسل هذا في رسالة قصيرة: Comparative study of a GEM-based fast neutron detector using<sup>4</sup>HE/CO<inf>2</inf>and<sup>4</sup>HE/CO<inf>2</inf>/C<inf>4</inf>H<inf>10</inf>gas mixtures

   _____   _    _    ______    _    _     ______  
  / ___// | || | || |      \\ | || | ||  /_   _// 
  \___ \\ | || | || |  --  // | || | ||  `-| |,-  
  /    // | \\_/ || |  --  \\ | \\_/ ||    | ||   
 /____//   \____//  |______//  \____//     |_||   
`-----`     `---`   `------`    `---`      `-`'