I am reading a paper on irradiation damage to semiconductor devices, the author mentioned a dose unit Mrad(Si). Can anyone tell me what it is? Thank you very much.
One rad is 100 ergs per gram deposited, in this case in a silicon solid state PIN diode detector (Si), which measures the number of electron-hole pairs. The conversion constant is about 3.7 eV of energy deposited per electron hole pair. This conversion constant may vary depending on the ionization density dE/dx (Bethe Bloch). See abstract