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The PHENIX Hadron Blind Detector (HBD) is a high-performance Cherenkov counter used to detect electrons in relativistic heavy ion collisions at RHIC. A High Voltage Control and Monitoring System (HVC) was developed to provide optimal control over the detector for maximal performance and protection against damage from possible discharges. The HVC comprises several novel hardware components including...
The Hadron Blind Detector (HBD) is new upgrade detector for the PHENIX experiment at RHIC that consists of a windowless Cherenkov radiator directly coupled to a set of triple gas electron multipliers (GEMs). The individual GEMs measure 22x27 cm2, and the top GEM in the stack is coated with a ~300 nm layer of CsI that serves as a photocathode. The signal amplitude from the triple GEM stack is used...
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