CZTdetektorit

CZT detectors are a type of semiconductor radiation detector that utilize Cadmium Zinc Telluride (CdTe) as the active material. CdTe is a compound semiconductor known for its high atomic number, which makes it very efficient at absorbing gamma rays and X-rays. The "CZT" in CZTdetektorit refers to the specific composition of Cadmium (Cd), Zinc (Zn), and Tellurium (Te).

These detectors operate by converting the energy of incident photons into electron-hole pairs within the semiconductor crystal. When an electric field is applied across the detector, these charge carriers drift towards electrodes, generating an electrical signal that is proportional to the energy of the incoming radiation. CZT detectors are advantageous because they can operate at room temperature, eliminating the need for cryogenic cooling typically required by other high-performance detectors like germanium detectors.

CZT detectors offer excellent energy resolution, meaning they can distinguish between photons of very similar energies, which is crucial for many spectroscopic applications. Their compact size and robust nature also make them suitable for portable and remote sensing applications. They find use in various fields including medical imaging (SPECT and PET scanners), homeland security (radiation portal monitors), astrophysics, and industrial gauging. The precise stoichiometry of Cadmium, Zinc, and Tellurium in the crystal lattice influences the detector's performance characteristics.