The high-voltage system for the LHCb RICH hybrid photon detectors

摘要

We describe the characterization of the high-voltage (HV) distribution system designed and producedfor the pixel hybrid photon detectors of the ring imaging Cherenkov counters of the LHCb experiment.The HV system consists of a series of printed circuit boards with a specific layout designed to preventany discharge arising from high electric fields. The system has dedicated monitoring and controlfeatures to supervise HV set-up during data taking. The full production of the HV system has been nowcompleted and all the boards have been fully characterized and installed in the detector, which iscurrently being commissioned.