SHIELDING-RESEARCH AREA AT BATTELLE
The design and constructlon of the shielding facility at Battelle are described. This facility consists of an open pool with a fission plate, an instrument bridge and tower, a control room, and radiation-detection instruments. The shielding pool is located at the end of the thermal column of the Battelle Research Reactor (BRR). The fission plate is 28 in. in diameter and contains approximately 3.5 kg of U/sup 235/. The plate was fabricated from three pieces of highly enriched U and clad with about 25 mils of 2S Al. It generates about 24 w during steady-state reactor operation. The fission spectra of neutrons and gamma rays produced by the fission plate are free from appreclible background radiations. The ratio of thermal to epithermal neutrons impinging upon the fission plate is approximately 67, indicating a low fast-neutron background. Assuming an average energy of 2 Mev for backgrounnd gamma rays results in a ratio of thermal-neutron flux to gamma flux of 16. (auth)
- Research Organization:
- Battelle Memorial Inst., Columbus, Ohio
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-92
- NSA Number:
- NSA-13-003381
- OSTI ID:
- 4309552
- Report Number(s):
- BMI-1291
- Country of Publication:
- United States
- Language:
- English
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BRR
CANNING
CONTROL SYSTEMS
EFFICIENCY
ENRICHMENT
EPITHERMAL NEUTRONS
FABRICATION
FAST NEUTRONS
FISSION
GAMMA RADIATION
GAMMA SOURCES
INSTRUMENTS
IRRADIATION
MATERIALS TESTING
MODERATORS
NEUTRON BEAMS
NEUTRON FLUX
NEUTRON SOURCES
NEUTRONS
PLANNING
PLATES
PRODUCTION
RADIATION DETECTORS
REACTOR CORE
REACTORS
RESEARCH REACTORS
SHIELDING
SHIELDING MATERIALS
SPECTRA
THERMAL COLUMN
THERMAL NEUTRONS
URANIUM 235
WATER COOLANT
WATER MODERATOR