There are several models of liquid scintillation counters in use at KUMC. If you have never used this instrument and would like to learn how, please contact EHS for instructions.
Liquid Scintillation Counter (LSC) Theory of Operation: In general, an LSC is detecting beta particles. This is done indirectly. When radioactive materials are placed in a vial containing liquid scintillation fluid, the emitted beta particles interact with the fluid to produce photons of light. The photons of light are then multiplied and counted by the LSC. The intensity of the light produced is proportional to the initial energy of the beta particle.
Each LSC is a little bit different; please consult the EHS Office, the Operating Manual, or other users if you need assistance performing this type of analysis. Some things common to all LSC's are the following: