LBNL Image Library -- Collection BERKELEY-LAB/PEOPLE/INDIVIDUALS

Image File: pg20_lionsden
Title: Rutherford, Chadwick and colleagues at the Cavendish.
Description: The Cavendish physicists had come to Belgium in strength. After Cockcroft, Lawrence faced Ernest Rutherford, who declared that no neutrons come from lithium under deuteron bombardment, and Chadwick, who insisted that the mass of the neutron is exactly what he had said. Then came the theorists. Heisenberg observed that if disintegration occurred in the electric field of the nucleus, the yield should decline for heavy targets since the deuteron's penetration, and hence the rate of change of force on it, must decrease with increasing atomic number. The debate continued when Lawrence stuck his head in the Cavendish lion's den on the way back to Berkeley. (The preceding information was excerpted from the text of the Fall 1981 issue of LBL Newsmagazine.) Photo courtesy of the American Institute of Physics
Citation Caption: LBL News, Vol.6, No.3, Fall 1981 | "The lions den" of the Cavendish: Rutherford, foreground, with colleagues, Chadwick is at right.
People: Ernest Rutherford, Chadwick