Laboratory for High Energy Physics
Located at Fermilab, the MicroBooNE collaboration has built a 100 ton liquid Argon Time Projection Chamber (LArTPC) aligned along the Booster neutrino beam. The experiment will measure low energy neutrino cross sections, and investigate the low energy excess event observed by the MiniBooNE experiment. The detector was put into operation in summer 2015, a recorded candidate neutrino event is depicted below.
The detector itself serves as the necessary next step in a phased program towards the construction of massive, kilo-ton range, LArTPC detectors. So far the Bern MicroBooNE group participates in:
An example laser induced track in the MicroBooNE detector is shwon below. The laser track can be identified by the endpoint on the cathode (larger charge visible at the top of the image) and the absence of charge fluctuations along the track.