Random number generation method and random number generator using inorganic scintillator

A random number generator comprising:

• a radioisotope emission layer emitting an alpha particle or a beta particle that is emitted when an atomic nucleus decays;
• a polymer layer disposed under the radioisotope emission layer and having inorganic scintillator powders mixed therein;
• a wafer layer disposed under the polymer layer and including a photodiode;
• a coupler having the same width as the photodiode, and the coupler disposed between the photodiode and the polymer layer;
• and
• a reflector disposed around the polymer layer except a part where the coupler is disposed between the photodiode and the polymer layer,
• wherein
• a horizontal width of the radioisotope emission layer is the same as a horizontal width of the polymer layer,
• a horizontal width of the wafer layer is larger than the horizontal widths of the radioisotope emission layer and the polymer layer, and
• the photodiode is formed in an upper part of the wafer layer in order to face the polymer layer.