ABSTRACT
Among Nishina’s many contributions to the Japanese physics community during the 1930s and 1940s, the most celebrated — and also the most controversial — were the construction and operation of his two cyclotrons at Riken. He was frequently seen working with one of these cyclotrons, as he is shown in a photo of him with his 60-inch cyclotron that was published on the cover of Nishina Yoshio, a collection of memoirs by his colleagues, students, and sons (Figure 6.1).3 Nishina’s cyclotron projects introduced Japan to the practice of Big Science, with its reliance on big staffs operating big machines in a big laboratory on big budgets.
