DAPNIA is contributing to the front end electronics and to the "bulk" Micromegas detectors for the near detector TPCs.
The TPCs are immersed in a 0.2T magnetic field which will allow excellent spacial resolutions (on the order of 500m). This will allow the momentum of muons and electrons produced by neutrino interactions to be measured with an accuracy better than 10% up to 1GeV/c. Information from the TPCs will also be used for electrons and muons identification.
last update : 10-24 00:00:00-2007 (2262)
Engineers and physicists from IRFU have successfully assembled and commissioned three large chambers designed to reconstruct charged particle tracks. The chambers will characterize the neutrino beam used in the T2K (Tokai to Kamiokande) experiment. They are the first large Time Projection Chambers (TPCs) to be equipped with micromesh gas detectors (Micromegas). The chambers have a very large sensitive area (nearly 9m²) and a correspondingly high number of electronic channels (124,000). IRFU built the entire detection system of the three TPCs, comprising 72 Micromegas detectors and all the front-end electronics. Engineers from SEDI, a department specialised in ... More »