2017 Meeting of the APS Division of Particles and Fields (DPF 2017)

A Panel Prototype for the Mu2e Straw Tube Tracker at Fermilab

31 Jul 2017, 18:38

1m

Reception Area (Fermi National Accelerator Laboratory)

Poster Particle Detectors Poster Session and Reception

Speaker

Alessandra Lucà (FERMILAB)

Description

The Mu2e experiment will search for coherent, neutrino-less conversion of muons into electrons in the Coulomb field of an aluminum nucleus with a sensitivity of four orders of magnitude better than previous experiments. The signature of this process is an electron with energy nearly equal to the muon mass. Mu2e relies on a precision (~0.1%) measurement of the outgoing electron momentum to separate signal from background. In order to achieve this goal, Mu2e has chosen a very low-mass straw tracker, made of about 20,000 5 mm diameter thin-walled (15 μm) Mylar® straws, held under tension to avoid the need for supports within the active volume, and arranged in an approximately 3 m long by 0.7 m radius cylinder, operated in vacuum and a 1 T magnetic field. Groups of 96 straws are assembled into modules, called panels. We present the prototype and the assembly procedure for a Mu2e tracker panel built at Fermilab.