Nuclear Physics, A Very Short Introduction
Frank Close 2015, Tigard Lib 539.7 CLO
- p11 1909-11 Rutherford and Marsden bombard gold foil with alphas, 1/10000 bounce back, demonstrates dense positive nucleus less than 1e-12 by volume.
- p12 1913 Bohr "planetary" model for electron, except solar system planets denser than electrons in atoms
- p13 quarks smaller than 1e-4 nuclear radius
Note, reference Nuclear Power A.V.S.I. by Maxwell Irvine 2011 online at Internet Archive Digital Library. Some about plasma fusion physics, but not much help calculating fusion cross section.