R.I.P. Andreas (Andy) Koehler
Andreas (Andy) Koehler, who was a Director of the Harvard Cyclotron Laboratory (HCL), passed away on May 16, 2015, at the age of 85.
Born in Germany in 1930, Andy studied physics at Harvard, and then became a technical assistant at the HCL, which he would later lead as the Director. In early 1960s, Andy was instrumental in the joint effort with the Massachusetts General Hospital to use the Cyclotron for cancer treatment. The pioneering work on proton-beam therapy at the HCL continued, treating over 9,000 patients in four decades until the decommissioning of the Cyclotron in 2002.
Andy’s contributions to radiology research at the HCL are wide-ranging but not widely-appreciated outside Harvard. The legacy of his work nevertheless lives on at numerous particle-therapy facilities around the world. We are grateful to have had such a dedicated scientist as Andy among our colleagues.