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Biographical Memoirs Volume 83 (2003) / Chapter Skim
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Homer Dupre Hagstrum
Pages 46-59

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From page 47...
... to live at home throughout his gracluate years at the University of Minnesota, en cl clicl not see a movie until he was 25 years oIcl en cl really to go forth into the woricI. His going to see "Captains Courageous" actually causecl his mother to break clown en cl weep.
From page 48...
... He hacl begun questioning his famiTy's religious doctrine early on, en cl in high school became engaged in science. He was fortunate to have an excellent science teacher, Henry Schoultz, who profoundly influencer!
From page 49...
... with the ionization en cl dissociation of molecules by electron impact, and with the thermal activation of the oxygen molecuTe. Homer left Minnesota in 1940 to join Bell Telephone Laboratories where he remained for 45 years, his entire professional career.
From page 50...
... possessions. After the war Homer en cl Bonnie movecl to Summit, New Jersey, near Murray Hill, where the research effort of Bell Labs was relocatecI.
From page 51...
... His thesis was a characteristically careful en c! definitive investigation of the ionization en cl dissociation of molecules by electron impact en cl on the thermal activation of the oxygen molecule.
From page 52...
... He remained! close friends with Acl White en cl Julius MoInar.
From page 53...
... that surface physics was becoming an ever more important frontier in science en cl in technology. New en cl improved methods for characterizing surfaces were neeclec!
From page 54...
... With a minimum number of assumptions the relative probability that an electron at a given band energy in the solid will be involved in the neutralization process the transition probability is calculated. It depends upon the initial and final state densities and upon the transition matrix elements and final state interactions much as in PES.
From page 55...
... atoms, though this work was not completecI. Homer was that rare type of scientist who enjoyocl working on all aspects of a carefully thought out research program, from his initial iclea to the design en cl construction of the neeclecl apparatus, to the taking of ciata en cl then mollifying the theory when necessary to obtain a cletailec!
From page 56...
... While INS will not be remembered as a milestone of twentieth-century physics, Homer Hagstrum will be rememberer! as a pioneer who created many of the icleas en cl techniques of moclern surface physics.
From page 57...
... 23:185. 1953 Instrumentation and experimental procedure for studies of electron ejection by ions and ionization by electron impact.
From page 58...
... Folding and nonfolding electron distributions in ion neutralization spectroscopy and evidence for an electronic superlattice at the Si(111~7 surface.
From page 59...
... HOMER DUPRE HAGSTRUM 1979 59 With T Sakurai.


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