GAMMA-RAY AND FAST NEUTRON ANNULAR STREAMING EVALUATION THROUGH SODIUM REACTOR EXPERIMENT (SRE)-MARK II CONTROL AND SAFETY ROD ASSEMBLIES

Technical Report · Thu Oct 15 04:00:00 EDT 1959

DOI:https://doi.org/10.2172/4203423· OSTI ID:4203423

Anderson, F D

An experimental program was initiated io determine the extent of fast neutron and gamma ray streaming through the SRL Mark II control and safety rods and to evaluate the adequacy of the shielding provided in these control and safety rods. The methods and procedures used to evaluate these problems are routine and proven for determining gamma-ray and fast neutron dosages using radiation sensitive films and gold foils. The final experimental results indicated that no excessive streaming of either gamma rays or fast neutrons is present above or around the SHE Mark II control and safety rods. The analytical attenuation methods used to calculate the fast neutron and gamma-ray streaming dose rates gave results that compared favorably with the experimental data. Even ihough the agreement was favorable, it cannot be concluded that these analyical methods would be equally valid for other annular geometries. Additional experimental work will be necessary in order to establish the validity for performing similar analysis, but the favorable agreement encourages the use of such methods until other methods are determined. (auth)

• Research Organization: Atomics International Div., North American Aviation, Inc., Canoga Park, Calif.
• Sponsoring Organization: USDOE
• DOE Contract Number: AT(11-1)-GEN-8
• NSA Number: NSA-14-004879
• OSTI ID: 4203423
• Report Number(s): NAA-SR-3989
• Country of Publication: United States
• Language: English

Related Subjects

CONTROL ELEMENTS
FAST NEUTRONS
FOILS
GAMMA RADIATION
GOLD
LIQUID METAL COOLANT
PHOTOGRAPHIC FILM DETECTORS
RADIATION DOSES
REACTOR SAFETY
REACTOR TECHNOLOGY
REACTORS
SODIUM
SRE