Empirical correlation of residual gamma radiation resulting from operation of the Health Physics Research Reactor
An empirical equation has been developed which gives gamma dose equivalent rate as a function of time, distance, and fission yield after a pulsed operation of Oak Ridge National Laboratory's (ORNL) unshielded Health Physics Research Reactor (HPRR). A related expression which is applicable to steady-state reactor operation has been mathematically derived from the aforementioned empirical equation. The two relations can be used to predict the gamma dose equivalent rate to within 25% for times between 1 minute and 90 minutes after reactor shutdown. Similar agreement is expected for up to several days. In most cases the relations are expected to overestimate the gamma dose equivalent rate. 5 refs., 4 figs., 1 tab.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5730656
- Report Number(s):
- ORNL-6144; ON: DE85012075
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
AIR COOLED REACTORS
CALCULATION METHODS
DOSE EQUIVALENTS
DOSE RATES
DOSIMETRY
ELECTROMAGNETIC RADIATION
ENRICHED URANIUM REACTORS
EPITHERMAL REACTORS
EQUATIONS
FAST REACTORS
FISSION YIELD
GAMMA DOSIMETRY
GAMMA RADIATION
GAS COOLED REACTORS
HPRR REACTOR
IONIZING RADIATIONS
NUCLEAR REACTION YIELD
Nuclear Criticality Safety Program (NCSP)
PULSED REACTORS
RADIATIONS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
YIELDS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
AIR COOLED REACTORS
CALCULATION METHODS
DOSE EQUIVALENTS
DOSE RATES
DOSIMETRY
ELECTROMAGNETIC RADIATION
ENRICHED URANIUM REACTORS
EPITHERMAL REACTORS
EQUATIONS
FAST REACTORS
FISSION YIELD
GAMMA DOSIMETRY
GAMMA RADIATION
GAS COOLED REACTORS
HPRR REACTOR
IONIZING RADIATIONS
NUCLEAR REACTION YIELD
Nuclear Criticality Safety Program (NCSP)
PULSED REACTORS
RADIATIONS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
YIELDS