OVERVIEW

The SensL 16-element Silicon Photomultiplier Array is based on the SL line of SPM Sensors. The ArraySL-4 is a 4×4 arrangement of 3mm SPM pixels which are mounted in a low profile ceramic package. The ArraySL-4 permits close packing on all four sides allowing for a detection area that can be as large or small as required by the specific application. It is the first commercially available detector of its kind and will be of particular interest to developers of imaging systems for PET, gamma cameras, hazard and threat detection and fluorescence measurements.

The ArraySL-4 utilizes a non-magnetic sensitive package that has been developed using Ni free processing and low magnetic susceptible materials. A 20-pin grid array (PGA) is employed for electrical I/O’s to the user’s printed circuit board or to a standard test socket connector which is included. The pixel array is over-molded with epoxy to completely encapsulate the pixels, bondwires and substrate bondpads. The pixel bias and readout configuration has been designed to allow for both differential and single channel readout electronics to optimize signal-to-noise ratios for PET applications.

The performance characteristics and specification of each pixel in the array are identical to SensL’s standard range of 3mm MicroSL SPMs. The ArraySL-4 is sensitive to visible light in the range of 400nm to 850nm and is suited to applications requiring either direct light detection or radiation detection via scintillators. Whether the application requires a 1D array for spectrometry or a 2D array for imaging, the ArraySL-4 is an attractive solution and an ideal replacement for MCPs, multi-anode PMTs, APDs, and existing discrete SPM products.