Design and construction of INGRID neutrino beam monitor for T2K neutrino experiment
Résumé
We report the and construction status of the INGRID neutr ino beam monitor for the T2K experiment. The INGRID detector consists of sixteen modules of iron-scintillator sandwich and will be placed around the neutrino beam center at 280m downstream of the target. By counting the number of neutrino interaction inside each module, we reconstruct and directly monitor the neutr ino beam direction and profile. We have tested the active components of INGRID and have found the light yield satisfies our requirements. Currently the assembly of INGRID is underway and the detector will be installed in March, 2009.