Fractional independent yields of /sup 121/Ag and /sup 121/Cd from thermal-neutron fission of /sup 235/U
Thesis/Dissertation
·
OSTI ID:5261227
The fractional cumulative yield of /sup 121/Ag and the fractional independent yield of /sup 121/Cd were determined from thermal-neutron induced fission of /sup 235/U. The SISAK continuous solvent extraction system was used to operate Ag and Cd rapidly during irradiation of an aqueous solution containing 93% enriched /sup 235/U. After allowing sufficient time for decay of all precursors, Sn was chemically separated and its beta decay followed on proportional counters. To utilize the SISAK system fully, it was first necessary to investigate rapid (approximately less than or equal to 1 sec) solvent extraction systems, and methods were developed which allowed the separation of silver from cadmium and cadmium from indium. The fractional yields obtained were used to determine the charge dispersion parameters sigma/sub Z/ and ..delta..Z for A = 121. The value of sigma/sub Z/ = 0.55 +/- 0.02 is about the same as the mean of sigma/sub Z/ for most fission products. The positive value of ..delta..Z = 0.42 +/- 0.03 is very different from the negative values found for most heavy fission products and supports with other data a zig-zag ..delta..Z function as symmetry is approached.
- Research Organization:
- Washington Univ., St. Louis, MO (USA)
- OSTI ID:
- 5261227
- Country of Publication:
- United States
- Language:
- English
Similar Records
Yields of indium and tin products from thermal and 14-MeV neutron induced fission of /sup 235/U
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NUCLEAR CHARGE DISTRIBUTION IN SYMMETRIC FISSION--Sn$sup 121$ INDEPENDENT YIELD
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:5753996
Nuclear-charge distribution for A = 121 from thermal-neutron-induced fission of /sup 235/U
Journal Article
·
Sun Mar 31 23:00:00 EST 1985
· Phys. Rev. C; (United States)
·
OSTI ID:5817458
NUCLEAR CHARGE DISTRIBUTION IN SYMMETRIC FISSION--Sn$sup 121$ INDEPENDENT YIELD
Technical Report
·
Sun Mar 17 23:00:00 EST 1963
·
OSTI ID:4694837
Related Subjects
652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CADMIUM 121
CADMIUM ISOTOPES
DATA
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
EXTRACTION
FERMIONS
FISSION
FISSION FRAGMENTS
FISSION YIELD
HADRON REACTIONS
HADRONS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
NEUTRON REACTIONS
NEUTRONS
NUCLEAR FRAGMENTS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
ODD-ODD NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SEPARATION PROCESSES
SILVER 121
SILVER ISOTOPES
SOLVENT EXTRACTION
TARGETS
THERMAL NEUTRONS
URANIUM 235 TARGET
YIELDS
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CADMIUM 121
CADMIUM ISOTOPES
DATA
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
EXTRACTION
FERMIONS
FISSION
FISSION FRAGMENTS
FISSION YIELD
HADRON REACTIONS
HADRONS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
NEUTRON REACTIONS
NEUTRONS
NUCLEAR FRAGMENTS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
ODD-ODD NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SEPARATION PROCESSES
SILVER 121
SILVER ISOTOPES
SOLVENT EXTRACTION
TARGETS
THERMAL NEUTRONS
URANIUM 235 TARGET
YIELDS