Fermilab Microelectronics department has a strong effort in a number of areas. Traditionally, we focused on addressing the next challenge for High Energy Physics, including operation in extreme environments including cryogenic and radiation, including developments for DUNE and LHC and dark matter searches. In the last few years, we have expanded our portfolio to use the expertise gained in...
Modern scintillator-based radiation detectors require silicon photomultipliers (SiPMs) with photon detection efficiency > 40% at 420 nm, possibly extended to the vacuum ultraviolet (VUV) region, SPTR < 100 ps, and DCR < 150 kcps/mm2. To enable single-photon time stamping, digital electronics and sensitive microcells need to be integrated in the same CMOS substrate, with a readout frame rate...
Abstract: We present the development of a fully reconfigurable, active-quenching, single photon avalanche diode (SPAD) array. It is fabricated by integrating a bare chip of Field-Programmable Gate Array (FPGA) with a bare die of 4×4 SPAD array with three-dimensional stacked package. The active quenching is realized through the Tri-State Gates and Look-Up Tables (LUTs) of the FPGA. This...
We present a novel detector concept using dielectrically-coupled photo sensors.
Our goal is to combine digital sensors with both power over fibre (PoF) and signal over fibre (SoF) to enable readout within electric fields (e-fields) at cryogenic temperatures. Motivated by maximising sensitivity of large-volume time projection chambers (TPCs). Timing resolution is limited by the optical path...
