Experimental Properties of an Assembled Straw Tube and Simulation Studies with Garfield++

Straw tubes are drift chambers made of a gas filled conducting cylinder acting as cathode, and a wire stretched along the axis of the cylinder acting as an anode. The Straw Tube Trackers (STTs) are a low mass tracking system with excellent vertex, momentum, angular and time resolution, and particle identification. Straw Tube based tracking detector is proposed for one of the Near Detectors (ND) in the long baseline neutrino experiment, DUNE at Fermilab. Our group at Panjab University has assembled a single straw tube and designed a prototype (1.8 m  \(\times \)  50 cm) for the SAND STT modules. Also, gas chambers have been fabricated. Gas leak tests and other properties of the assembled straw tube are being studied and reported. Simulation studies using GARFIELD++, a C++ based simulation of tracking detectors, is done for the dimensions and properties of the assembled single straw tube using different gas mixtures.