Compilation of yields from neutron-induced fission of /sup 232/Th, /sup 235/U, /sup 236/U, /sup 237/Np, /sup 238/U, and /sup 239/Pu measured radiochemically at Los Alamos

Technical Report · Wed Oct 01 00:00:00 EDT 1975

DOI:https://doi.org/10.2172/7282024· OSTI ID:7282024

Ford, G. P.; Norris, A. E.

Radiochemically measured relative fission yields have been compiled for targets of /sup 232/Th, /sup 235/U, /sup 236/U, /sup 237/Np, /sup 238/U, and /sup 239/Pu that were irradiated with neutrons, the average energies of which were in the 0.0253-eV to 14-MeV range. The yields were examined for consistency by means of the two-mode-of-fission hypothesis. The circumstances associated with inconsistencies were investigated, but the yields in questions were rejected only when good cause was found. Finally, the relative fission yields were converted to absolute values. Most samples were irradiated in the following Los Alamos reactors: BIG-TEN, Clementine, Flattop (oralloy core), Flattop (Pu core), Godiva-I, Godiva-IV, Jezebel (Pu core), Jezebel (/sup 233/U core), Topsy, Tungsten-Carbide Critical Assembly, and Water Boiler. Other samples were irradiated at the Los Alamos Cockcroft-Walton and Van de Graaff accelerators. Still others were irradiated in the Coupled Fast Reactivity Measurements Facility at INEL. For each irradiation, the yields of some nuclides in the following list were measured: /sup 82/Br, /sup 83/Br, /sup 89/Sr, /sup 90/Sr, /sup 91/Sr, /sup 91/Y, /sup 95/Zr, /sup 96/Nb, /sup 97/Zr, /sup 103/Ru, /sup 105/Rh, /sup 106/Ru, /sup 109/Pd/sup g/, /sup 111/Ag, /sup 115/Cd/sup m/, /sup 115/Cd/sup g/, /sup 127/Sb, /sup 129/Sb, /sup 131/I, /sup 132/Te, /sup 136/Cs, /sup 137/Cs, /sup 139/Ba, /sup 140/Ba, /sup 141/Ce, /sup 143/Ce, /sup 144/Ce, /sup 147/Nd, /sup 153/Sm, /sup 156/Eu, and /sup 161/Tb. 34 figures, 8 tables. (auth)

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7282024
• Report Number(s): LA-6129; TRN: 76-015695
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
FISSION YIELD
RADIOCHEMICAL ANALYSIS
NEPTUNIUM 237
NEUTRON REACTIONS
FISSION
PLUTONIUM 239
THORIUM 232
URANIUM 235
URANIUM 236
URANIUM 238
NEPTUNIUM 237 TARGET
PLUTONIUM 239 TARGET
THORIUM 232 TARGET
URANIUM 235 TARGET
URANIUM 236 TARGET
URANIUM 238 TARGET
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BARYON REACTIONS
CHEMICAL ANALYSIS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HADRON REACTIONS
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEPTUNIUM ISOTOPES
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
PLUTONIUM ISOTOPES
RADIOISOTOPES
TARGETS
THORIUM ISOTOPES
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
YIELDS
652026* - Nuclear Properties & Reactions
A=220 & above
Experimental- Spontaneous & Induced Fission- (-1987)