Danbury Proton plans to submit a Certificate of Need to the Connecticut State Office of Health Strategy for an $80 million proton therapy treatment center, to be operational in 2023 at 85 Wooster Heights.  The project would create over 100 construction jobs during a two-year period.  Danbury Proton would employ over 30 full-time equivalent workers including radiation oncologists, medical physicists, radiation therapists, medical support and administrative staff. The new center would feature a U.S.-made proton therapy system manufactured in Massachusetts.  The non-invasive cancer-fighting tool was first used to treat patients in 1954, and received FDA approval in 1988. Unlike traditional radiation which uses photons, or x-rays, protons can deliver nearly all of their energy within a tumor.