Cavendish Professor of Physics the university regulations which allowed students who had not studied at Cambridge to receive a B.A. by submitting a thesis which was judged "of distinction as a record of original research." Among the students attracted by this change was future Cavendish Professor Ernest Rutherford. Whilst Thomson was Cavendish Professor, he discovered the electron and the existence of isotopes, and also fostered an atmosphere of friendliness and mutual helpfulness. Rutherford returned to Cambridge in 1918, and spent the last 19 years of his life there. This was around the time of the change from classical to modern physics, and Rutherford was
University of Massachusetts Lowell Radiation Laboratory University of Massachusetts Lowell Radiation Laboratory The Radiation Laboratory at University of Massachusetts Lowell serves the Department of Applied Physics among others. The laboratory contains a 1 MW pool-type nuclear research reactor (UMLRR) that has been operating since 1974, a 300 kCi Co-60 gamma ray source, and a 5.5 MV Van de Graaff accelerator. First startup was January 2, 1975. A budget for the reactor is not provided from the university or from the state; funding comes from grants and the United States Department of Energy. The UMass Lowell reactor has been one of the many research reactors to make