The micro-IDM compact gamma ray detector module comes with a room temperature Cadmium-Zinc-Telluride (CZT) semi-conductor sensor with 256 pixels, arranged in a 16×16 matrix. Each pixel is connected to a channel with amplification and trigger circuitry implemented in application specific integrated circuits (ASICs).
The ASIC amplifies and samples the analog signal when the input signal is above a user programmable threshold. The trigger signal, the address of the triggered channel and the charge signal is then available at the at the output interface. The output self-resets after a predetermined time.
The SRE4002 allows for gamma ray energy measurements up to 700 keV. The module has been measured to with a Co-57 source and at room temperature. The Co-57 photo-peak at 122 keV has 5.4 keV full-width-half-maximum (FWHM) energy resolution.
The modules can be arranged to create gamma ray cameras of different geometries. Typical applications include arrays of SRE4002 modules, creating a larger imaging array. The module has two M2 threaded holes for mounting. The module has two electrical connectors, which allows for mounting on a carrier board.
The detector modules are insensitive to magnetic fields and can be operated in vacuum/space.
The SRE4002 is also available in a 350 keV-charge range version: SRE4001-CZT40.
Carrier boards for multiple SRE4002 modules can be delivered, contact IDEAS for more information.
|Application||Gamma ray cameras|
|Input charge range||0 keV to 700 keV|
|Number of pixels||256 (16x16)|
|Pixel pitch||2.5 mm|
|Energy resolution||5% FWHM at 122 keV|
|Outputs||Energy and triggered channel|
|Power consumption||250 mW (excluding CZT)|
|Dimensions||40 mm x 40 mm x 20 mm|