Developments of the Calibation Tools for Beam Position Monitor at J-PARC Linac

In the J-PARC LINAC, there are mainly two requirements for calibration of beam position monitors (BPMs). One is that BPMs need to be calibrated with the accuracy of less than about a hundred micrometers to minimize beam loss for the world highest class of proton intensity. The other is that about a hundred of BPMs need to be calibrated and maintained consistently. To achieve these requirements, the calibration tools are being developed. During development, experiences on real beam in a MEBT line set for the DTL commissioning are utilized. The status of the development of calibration tools is described in this paper.