The MINOS near detector front end electronics

Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector

“…Detailed information regarding the MINOS Near Detector, the electronics and the data acquisition systems can be found in [14,17,18].…”

Observation of Muon Neutrino Disappearance with the MINOS Detectors in the NuMI Neutrino Beam

“…The data acquisition [21][22][23] accepts data above a threshold of 0.25 PEs. In the FD, the online trigger conditions require a hit within 100 s centered on the time of the expected beam spill, at least 20 PEs inside a four plane window, or 4 hits in 5 consecutive planes.…”

A study of muon neutrino disappearance in the MINOS detectors and the NuMI beam

“…The phototube signals are digitized using a modified version of the Viking VA chips mode designed by the Norwegian company IDEA ASA at the Far Detector [Oliver et al, 2004] and FNAL "QIE" chips [Cundiff et al, 2006] at the Near Detector to meet the fast demands of the high event rate at the near site. In both cases, circuitry is installed to inject known amounts of charge into the digitization circuits for calibration of the digitization.…”

“…In the Near Detector frontend electronics [Cundiff et al, 2006], each PMT pixel is digitized continuously at the frequency of the beam RF structure of 53.103 MHZ (18.83 ns). This is achieved with an individual front-end channel unit consisting of a small mezzanine printed circuit board (PCB) called a MENU (MINOS Electronics for Neutrinos).…”