05/02/2026
Today at Alpha Tau Medical, we took some time to come together to mark one year since the passing of the late Professor Itzhak Kelson, a brilliant scientist whose vision helped bring the Alpha Dart® technology to life.
Since his passing, his influence has not faded; it has only grown stronger in the work we do every day. Itzhak’s scientific legacy continues to guide our innovation, but it is his character - warm, humble, endlessly curious, and full of gentle humor - that remains closest to our hearts and that is most deeply cherished.
Shai Lax, materials engineer, relayed some beautiful Jewish teachings, connecting them to Itzhak, to honor and elevate the moment.
Yadin Cohen, Head of Physics, spoke movingly about his relationship with Itzhak - about mentorship, collaboration, and the quiet brilliance that defined him. His words reminded us that Itzhak’s greatest impact was not only in the technologies he helped create, but in the people he encouraged, supported, and believed in.
Niv Golan played a lovely piece of music by Arik Einstein, a small but meaningful gesture that evoked Itzhak’s characteristic warmth and personality and love of culture.
Professor Kelson was more than a scientist. He was a kind friend and devoted mentor, a colleague whose presence made every conversation brighter and lighter. His contributions to science and physics are lasting and profound, but his legacy at Alpha Tau is equally defined by empathy, integrity, joy, and humor.
Today, we remember him with gratitude. As we continue to work hard to carry forward the legacy of his important work to bring hope to cancer patients around the world, we pause and reflect on where we came from, how far we’ve come, and how inspired we are to keep moving.