The system for the monitoring of the photomultiplier dark noise in the Borexino neutrino detector

Monitoring the dark noise of photomultiplier tubes (PMT) is important for maintaining the operation of the Borexino detector. For this purpose, a dark noise monitoring system was developed on the basis of the CAN network and the DeviceNet upper-level protocol. The system consists of a set of CAN controllers, which digitize PMT signals and transmit data over the CAN to the host computer. The software creates a DeviceNet protocol stack, ensuring data collection and transmission. The user interface is built on the basis of dynamic WEB pages.