Georg Placzek (1 results)

Bethe, Hans (1906-2005); Serge A. Korff (1906-89); and Georg Placzek (1905-55). On the interpretation of neutron measurements in cosmic radiation. Offprint from Physical Review 57 (1940). 573-587pp. 268 x 201 mm. Without wrappers as issued. Creased horizontally, but very good. From the library of Nobel Laureate Emilio Segrè (1905-89), with his signature on the first page. First Edition, Offprint Issue. After the discovery of cosmic rays in 1912, "the next two decades saw the study of the increase of cosmic rays with altitude and decreasing atmospheric shielding. Even after thirty years of study, a meaningful theory of the propagation of the [rays'] nucleonic component came only after sufficient understanding of the nuclear force and nuclear theory. Thus, development began with the historic paper of Bethe, Korff, and Placzek (1940), which concerned atmospheric neutrons; these results, although incomplete, remain substantially correct today" (J. W. Wilson et al., Transport Methods and Interactions for Space Radiations, p. 239; emphasis ours). This copy is from the library of Nobel Laureate Emilio Segrè, discoverer of the antiproton and the elements technetium and astatine. .