Actions for Nuclear chemistry research. Progress report, November 1, 1975--October 31, 1976. [Summary of research activities at the University of Chicago].

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Nuclear chemistry research. Progress report, November 1, 1975--October 31, 1976. [Summary of research activities at the University of Chicago].

Author
Sugarman, N.
Published
United States : [publisher not identified], 1976.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1976.
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Turkevich, A.

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Summary
Experiments in progress to study the dependence of cross section and gross recoil properties of various radioactive products from light (Al), medium-mass (Cu, Ag) and heavy (Bi, U) target nuclei bombarded with high-energy protons (1-400 GeV) are nearing completion. Emphasis is now being given to the details of the production processes, such as the angular and energy distributions of the products and their relation to fundamental particle interactions. Experiments are also underway on the comparison of pion and proton interactions with complex nuclei and on simple reactions involving pion production. Three experiments using 800 MeV protons at Los Alamos on B/sub 4/C, Pb and U targets have failed to produce evidence for particle-bound polyneutron systems. At this energy, less than 10/sup -8/ of the interactions lead to such systems. Collaboration has continued with Los Alamos and NOAA on stable atmospheric tracers. In the last year an additional experiment was performed using both /sup 12/CD/sub 4/ (300 gm) and /sup 13/CD/sub 4/ (100 gm) at Savannah River. The distribution of the tracers found 100 km from the release point agreed qualitatively with that observed with the SF/sub 6/ (154,000 gm) that was also released. A collaborative effort (with Dr. George W. Reed, Jr., ANL) on the study of extraterrestrial objects (meteorites and lunar samples) is continuing. Recently this work has concentrated on the distribution of halogens and mercury in lunar and meteoritic samples. The presence of isotopically anomalous mercury has been established in three more meteorites.
Report Numbers
COO-1167-39
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: EY-76-S-02-1167
OSTI Identifier 7124308
Research organization: Univ. of Chicago, IL (United States).
View MARC record | catkey: 44261933