Speaker
Dr
Bo Yu
(Brookhaven National Laboratory)
Description
Liquid argon time projection chamber (LArTPC) is a unique technology well suited for large scale detectors of neutrinos and other rare processes. Its combination of millimeter scale 3D precision particle tracking and calorimetry with good dE/dx resolution provide excellent efficiency of particle identification and background rejection.
MicroBooNE is a LArTPC about to enter its final design phase and is scheduled for construction next year. Its active volume contains 86 ton of LAr. It has a 2.6m drift distance, 8256 sense wires on 3 planes connected to cold CMOS front-end electronics. Most of the TPC design features improve upon existing tried and true techniques.
The LAr40 is one of the two far detector options under consideration for the Long Baseline Neutrino Experiment (LBNE). Its conceptual design has 40 kton active liquid argon mass, to be installed underground at a moderate depth. Due to its large scale, and underground siting, great emphasis was placed on the detector cost and reliability. The LAr40 consists of two 20 kton detectors in one underground cavern. A modular TPC design within a single cryostat is the key to achieve these goals. Each detector is constructed from an array of TPC sense wire and electronics modules reading out 120 ton active mass each. Cold electronics with multiplexed readout is integrated with each sense wire module. Innovative concepts enable the modules to be tiled with minimal dead space.
An overview of both detectors will be presented. Key features of both TPC designs will be described in detail.
Author
Dr
Bo Yu
(Brookhaven National Laboratory)
