Speaker
Description
The DUNE Far Detector (FD) employs the Liquid Argon Time Projection Chamber (LArTPC) detector technology: charged particles traveling through the detector ionize liquid argon and, thanks to the collection of the resulting ionization charges, 3D tracks can be reconstructed. The event time, and position of the track in the detector volume, is obtained detecting the scintillation light caused by the recombination of part of the ionization charges. In fact, liquid argon is an excellent scintillator, despite the VUV wavelength range (128nm) of the emitted photons makes their detection challenging. The Photon Detection System (PDS) is responsible for the detection of liquid argon scintillation light in the DUNE FD. The PDS is based on the X-Arapuca, a light trapping device capable of instrumenting large photon collection surfaces with a limited amount of active photosensors (SiPM), placed along its edges. The trapping effect is obtained using wavelength-shifting and reflective materials.
In this talk, it is described the X-Arapuca implementation in the DUNE FD. Measurement results are also reported, in particular from the efficiency measurements performed in the collaboration laboratories, and from the ProtoDUNE-HD run.
Details
Luca Meazza, post-doc, University of Milano-Bicocca, Italy, https://www.unimib.it/
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | DUNE |
| Is the speaker for that presentation defined? | Yes |
