Dontre Tucker Dontre Tucker was a fitter/welder during the construction of the TEDF, Hall D, and Test Lab upgrades. Interaction with JLab staff during that construction led to Dontre being hired by the cryogenics group as a fitter. After 3 years in the cryogenics group, he took a position with the installation/vacuum group. During his time with this group he was matrixed to Hall B to help with the torus construction. From there he took a position with SRF where he spent 7 years before taking a position with accelerator operations. He has since joined the Hall B group. Current Responsibilities in Hall B: Worker Safety committee Mechanical technician Vacuum technician Gas systems