Ezz 2

Three types of Gas Filled Radiation Detectors

Ionization, Proportional Counter, and GMC

By using these both high energy radionuclides and low lev radionuclides can be seperated from each other

Lower Level Discriminator and Upper Level discriminator

The General Concept of Gas Detector is that…

The anode collects the electrons, it flows through a sensitive meter, collected at the negative side

The first camera is consisting of a large sodium iodide crystal together with a photomultiplier tube which is then connected to a computer in order to…

Identify the position and brightness of the scintillation

What is the purpose of the Crystal in a Gamma Camera? (5)

To initiate the detection process when gamma ray enters the crystal in which the energy is absorbed totally inside the crystal which is accomplished through a series of collisions

What are rhe divided groups in Vitro Test

Dilution Test, Absorption Test, Metabolism Turnover Studies, Leekage test, Analytical Test

Discuss/Explain How the detection process of the crystal detectors is initiated when a Gamma ray enters the Crystal (5)

The detection process is intiated when a gamma ray enters the crystal in which is accomplished through a series of collisions. Each time a collision occurs, some of the energy of the gamma ray is transferred to an electron that produces Luminous light

Systems involved in the procedure of recording of the flash of light

Crystal detector, Photomultiplier tube, Pre Amplifier Circuit, Pulse Height Analyzer, Display Mode