Si-PIN (Silicon PIN Detector)
The Si-PIN is a high performance thermoelectrically cooled X-ray detector and can be combined with several preamplifier and digital pulse processor configurations. It is typically used in laboratory X-ray spectroscopy applications requiring moderate energy resolution and moderate count rates where cost is important. It is well suited to many XRF applications such as identifying metal alloys, verifying RoHS/WEEE compliance, and detecting lead in paint.
The energy resolution of the SiPIN ranges from 139 to 190 eV FWHM depending on the detector area. It is best at count rates below 30 kcps and is suited to X-rays between 1.5 and 30 keV. It uses a fully depleted 500 um Si-PIN photodiode, and is available with 1 or 0.5 mil Be windows.