Mass production test of Hamamatsu MPPC for T2K neutrino oscillation experiment
نویسندگان
چکیده
In the T2K near neutrino detectors, about 60 000 Hamamatsu Multi-Pixel Photon Counters (MPPCs) will be used. The mass production of MPPC has started in February 2008. In order to perform quality assurance and to characterize each device, we have developed an MPPC test system. For each MPPC, gain, breakdown voltage, noise rate, photo detection efficiency, and cross-talk and after-pulse rate are measured as functions of the bias voltage and temperature. The design of the test system and the measurement procedure are described.
منابع مشابه
Application of Hamamatsu MPPC to T2K Neutrino Detectors
A special type of Hamamatsu MPPC, with a sensitive area of 1.3×1.3 mm containing 667 pixels with 50×50 μm each, has been developed for the near neutrino detector in the T2K long baseline neutrino experiment. About 60 000 MPPCs will be used in total to read out the plastic scintillator detectors with wavelength shifting fibers. We report on the basic performance of MPPCs produced for T2K.
متن کامل2 00 9 Scintillator counters with WLS fiber / MPPC readout for the side muon range detector ( SMRD ) of the T 2 K experiment
The T2K neutrino experiment at J-PARC uses a set of near detectors to measure the properties of an unoscillated neutrino beam and neutrino interaction cross-sections. One of the sub-detectors of the near-detector complex, the side muon range detector (SMRD), is described in the paper. The detector is designed to help measure the neutrino energy spectrum, to identify background and to calibrate ...
متن کاملThe T2K Neutrino Oscillation Experiment and Possible Future Projects
The Tokai to Kamioka (T2K) experiment is a next generation long baseline neutrino oscillation experiment utilising the Japan Proton Accelerator Research Complex (J-PARC) high intensity proton synchrotron. After a brief introduction of the current understanding of neutrino mixing, the T2K experiment, its current status and the expected physics results are presented. Then, possibilities for futur...
متن کاملExperimental studies of neutral current pion production at low energy
The unknown neutrino mixing angle θ13 is one of the most important goals in current neutrino experiments. For the next generation of long baseline neutrino oscillation experiments, T2K and NOvA, the precise measurement of neutrino-nucleus cross sections in the few GeV energy range is an essential ingredient in the interpretation of neutrino oscillation signals. Neutral current neutral-pion prod...
متن کاملLatest results from T2K and T2K Phase II
T2K is a long-baseline neutrino oscillation experiment using a νμ beam produced at the J-PARC facility. Neutrinos are detected at a Near Detector complex (ND280) and at the Far Detector (Super-Kamiokande). The most recent oscillation results presented by T2K are described in these proceedings. With these data T2K has produced the first constraints on δCP, excluding CP conserving values at 2σ an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008