Products » SRE4001


350keV CZT Gamma Ray Read-out Module
SRE4001 SRE4001 with CZT detector attached.

The micro-IDM compact gamma ray detector readout module makes use of room temperature Cadmium-Zinc-Telluride (CZT) semi-conductors and features 256 spectroscopic pixels (or channels). Each channel has 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 SRE4001 allows for gamma ray energy measurements up to 350 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 SRE4001 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 module can also be delivered with two types of CZT detectors: SRE4001-CZT25.4 for a 25.4 mm x 25.4 mm CZT crystal and SRE4001-CZT40 for a 40 mm x 40 mm CZT crystal.

The SRE4001 is also available in a 700 keV-charge range version: SRE4002

Carrier boards for multiple SRE4001 modules can be delivered, contact IDEAS for more information.

Product Features

ApplicationGamma ray cameras
Number of inputs256
Input charge range0 keV to 350 keV
Energy resolution5% FWHM at 122 keV
Trigger thresholdProgrammable
OutputsEnergy and triggered channel
Power consumption250 mW
Dimensions25.4 mm x 25.4 mm x 10 mm