FISSION FRAGMENT ENERGY DEPOSITION EFFICIENCY

Technical Report · Thu Mar 01 04:00:00 EST 1962

OSTI ID:4734909

Steinberg, M

The calculation of the efficiency of deposition of kinetic energy of the recoiling fission fragments is discussed, and equations are given for the range of fission fragments in various substances. The overall energy deposition efficiency epsilon /sub 0/ for any combination of fuel and chemical system is given by epsilon /sub 0/ = epsilon /sub KE/ epsilon /SG/ epsilon /sub EG/, where epsilon /sub KE/ = frac tion of total fission energy as kinetic energy (0.84 for fission fuels), epsilon /sub SG/ = self-absorption efficiency or fraction of energy escaping the parent fuel particle, and epsilon /sub EG/ = non- re-entry efficiency. Efficiency vs fuel dimension curves are given for the epsilon /sub SG/ in spherical, cylindrical, and slab geometries of solid U/sub 3/ O/sub 8/; epsilon /sub SG/ epsilon /sub EG/ for an ordered array of infini te slabs; epsilon /sub 0/ of various U/sub 3/O/sub 8/ geometries in rir at 80 atm and 482 deg C; epsilon /sub SG/ epsilon /sub EG/ for U/sub 3/O/sub 8/ spheres in gases with various fissio n fragment ranges; and epsilon /sub SG/ epsilon /sub EG/ for UO/sub 2/ slurry in water. (D.L.C.)

• Research Organization: Brookhaven National Lab., Upton, N.Y.
• DOE Contract Number: AT(30-2)-GEN-16
• NSA Number: NSA-17-008122
• OSTI ID: 4734909
• Report Number(s): BNL-6079
• Country of Publication: United States
• Language: English

Related Subjects

AIR
CHEMISTRY
CONFIGURATION
CYLINDERS
EFFICIENCY
ENERGY
EQUATIONS
FISSION PRODUCTS
FUELS
GASES
PRESSURE
RECOILS
SLURRIES
SOLIDS
SPHERES
U3O8
URANIUM DIOXIDE
WATER