發送短信 : RF study and 3-D simulations of a side-coupling thermionic RF-gun

 _    _     _____     _____      ___     _    _   
| \  / ||  |  ___||  /  ___||   / _ \\  | |  | || 
|  \/  ||  | ||__   | // __    | / \ || | |/\| || 
| .  . ||  | ||__   | \\_\ ||  | \_/ || |  /\  || 
|_|\/|_||  |_____||  \____//    \___//  |_// \_|| 
`-`  `-`   `-----`    `---`     `---`   `-`   `-`