Description
The Portable CdZnTe CPG detector is made possible by recent advances in the CdZnTe detector manufacturing processes. These large volume CdZnTe detectors have the electrode geometry and charge collection efficiency to offer the high resolution necessary for nuclear spectroscopy.
The CPG detectors are ideal for applications requiring high efficiency, high resolution, room temperature operation. Their compact size and rugged design allows their use in harsh or restrictive environments.
Principle of Operation
The application of the CPG electrode structure creates an electron-only collection device that allows for a reduction in tailing caused by the trapping of charge in the CdZnTe crystal. For this technique, the anode is divided into 2 sets of connected electrode grids, with each set coupled to an independent preamplifier. The preamplifiers are then connected to a differential amplifier and the resulting signal is fed to an external shaping amplifier.
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