Photo shows the current Motherboard/Preamp test setup. One can also see how the SB detectors will be mounted. The detector is sandwiched between the motherboard and the focusing tube plate, the new version of which has alignment rings. In addition two rings of a silver based conductive elastomer are used to soften any irregularities in the surface of either the focusing tube plate or the circuit board and also ensure a good electrical connection. Note: All circuit boards are constructed from a highly thermally conductive ceramic and are cooled entirely through their connection pins.