Integral measurements of neutron and gamma-ray leakage fluxes from the Little Boy replica
This report presents integral measurements of neutron and gamma-ray leakage fluxes from a critical mockup of the Hiroshima bomb Little Boy at Los Alamos National Laobratory with detector systems developed by Oak Ridge National Laboratory. Bonner ball detectors were used to map the neutron fluxes in the horizontal midplane at various distances from the mockup and for selected polar angles, keeping the source-detector separation constant. Gamma-ray energy deposition measurements were made with thermoluminescent detectors at several locations on the iron shell of the source mockup. The measurements were performed as part of a larger progam to provide benchmark data for testing the methods used to calculate the radiation released from the Little Boy bomb over Hiroshima. 3 references, 10 figures.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5248668
- Report Number(s):
- ORNL/TM-9005; ON: DE84007599
- Country of Publication:
- United States
- Language:
- English
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BONNER SPHERE DETECTORS
DATA
DETECTION
DOSEMETERS
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
GAMMA RADIATION
INFORMATION
IONIZING RADIATIONS
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MODERATING DETECTORS
NEUTRON DETECTORS
NEUTRON FLUX
NUCLEAR WEAPONS
NUMERICAL DATA
Nuclear Criticality Safety Program (NCSP)
RADIATION DETECTION
RADIATION DETECTORS
RADIATION FLUX
RADIATIONS
SIMULATION
THERMOLUMINESCENT DOSEMETERS
WEAPONS