I was wondering what's the purpose of using Thallium (Tl) in Iodine Sodium (NaI) scintillators.
Answers and Replies
#2
Ed Aboud
201
0
Sodium iodide (NaI) in its pure
state can detect gamma rays only at very low temperatures. By adding a small
amount of Thallium metal to the crystal (about 0.01%), the crystal can detect
gamma rays or nuclear particles at much higher temperatures.