As a professor at Stanford University, Richter built a particle accelerator called SPEAR (Stanford Positron-Electron Asymmetric Ring) with the help of David Ritson and the support of the U.S. Atomic Energy Commission.
Profesor da Universidade Stanford, Richter construíu un acelerador de partículas denominado Stanford Positron-Electron Asymmetric Ring (SPEAR) coa axuda de David Ritson e o apoio da Comisión da Enerxía Atómica dos Estados Unidos.