Text this: Thickness and Material Analysis of the Radiation Shielding in 30 MeV Cyclotron Room for BNCT using Particle and Heavy Ion Transport code System (PHITS)

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