On the Absorption and the Diffusion of Slow Neutrons, The Physical Review, Volume 50, Number 10, November 15, 1936, pp. 899-928 [FIRST PRINTING IN ENGLISH, ORIGINAL WRAPS] de Amaldi, E. and E. Fermi

FIRST PRINTING IN ENGLISH, ORIGINAL WRAPS, of "the classical paper on absorption properties of slow neutrons, establishing ‘the existence of absorption bands corresponding to energy intervals sufficiently narrow to allow one to isolate relatively homogenous neutron groups'. In addition, absorption and scattering properties of various groups of neutrons were investigated" (Fisher, Changing Landscapes of Nuclear Physics, 165; Amaldi & Fermi 1936, p. 899).

Earlier work by Amaldi et al. 1935 had established that slow neutrons, including thermal neutrons, can be created only by slowing down (in moderators) the fast neutrons emitted by the sources. This 1936 paper is considered the "most valuable and comprehensive accounts of the slowing-down of neutrons and the properties of slow neutrons" (Advances in Radiochemistry, 48).

Although Fermi is often remembered for his theory on beta-decay, he was also the world's leading expert on neutrons and his 1938 Nobel Prize was awarded for his work on slow neutrons, specifically: "for his contribution to the application of neutron radiation to the production of many new radioactive isotopes and to his discovery that certain nuclear reactions are brought about by slow neutrons" (Nobel Prize Committee).

ALSO INCLUDED: Arthur H. Compton "Scattering of X-Rays by a Spinning Electron," pp. 878-882. CONDITION & DETAILS: First edition in original wraps. Volume 50, Number 10. 4to (10.5 x 8 inches; 263 x 200mm). Extremely slight chipping at the foot of the spine. Clean and bright inside and out. Near fine condition.