Oak Ridge reactor

The induced activities of some important reactor materials have been measured in the Oak Ridge reactor. Data are summarized in Table 4. 6.D for irradiations at a thermal iflux of 10 neutrons/cm - sec. At higher flux levels, the values may be increased proportionally as long as the ratio nvtr/ is small. 

Different combinations of stable xenon isotopes have been sealed into each of the fuel elements in fission reactors as tags so that should one of the elements later develop a leak, it could be identified by analyzing the xenon isotope pattern in the reactor s cover gas (4). Historically, the sensitive helium mass spectrometer devices for leak detection were developed as a cmcial part of building the gas-diffusion plant for uranium isotope separation at Oak Ridge, Tennessee (129), and heHum leak detection equipment is stiU an essential tool ia auclear technology (see Diffusion separation methods). 

Chemical Reprocessing" in ECT2nd ed., under "Nuclear Reactors," Vol. 14, pp. 91—102, A. T. Gresky, Oak Ridge National Laboratory in ECT3rd ed.,... 

J. M. Leitnaker, M. L. Smith, md C. M. Fitzpatrick, Conversion of Uranium Nitrate to Ceramic Grade Oxidefor the Eight-Water Breeder Reactor Process Development, ORNL-4755, Oak Ridge National Laboratory, Oak Ridge, Term., 1972. 

W. S. Groenier, Equipmentfor the Dissolution of Core Materialfrom S beared Power Reactor Fuels, ORNL/TM-3194, Oak Ridge National Laboratory, Oak... 

The United States continued fast-breeder reactor research and development with the building of the fast flux test faciHty (FFTF) at Hanford and the SEFOR reactor in Arkansas (59). The next plaimed step was to build a prototype power reactor, the Clinch River fast-breeder plant (CRFBP), which was to be located near Oak Ridge, Teimessee. 

Aircraft Reactors. As early as World War II, the U.S. Army Air Force considered the use of a nuclear reactor for the propulsion of aircraft (62—64). In 1946 the nuclear energy for propulsion of aircraft (NEPA) program was set up at Oak Ridge, under Fairchild Engine and Airplane Corporation. Basic theoretical and experimental studies were carried out. The emphasis was on materials. A high temperature reactor was built and operated successfiiUy. 

Fig. 1. Volume change in anisotiopic giaphite during General Electric Test Reactor (GETR) irradiations. Courtesy of Oak Ridge National Laboratory, managed by Martin Marietta Energy Systems, Inc. for the U.S. Department of Energy under Contract No. DE-AC05-840R21400.

F. R. Farmer, Reactor Safety and Siting A Proposed Risk Criterion, Nuclear Safety, Vol. 8, No. 6, Oak Ridge, TN, November-December 1967, pp. 539-548. 

Forsberg, C. W., D. L. Moses, E. B. Lewis, R. Gibson, R. Pearson, W. J. Reich, G. A. Murphy, R. H. Staunton, and W. E. Kohn (1989). Proposed and Existing Passive and Inherent Safety-Related Structures, Systems, and Components (Building Blocks) for Advanced Light Water Reactors. Oak Ridge, TN Oak Ridge National Laboratory. 

Clinch River Breeder Reactor Project, the first large-scale demonstration breeder reactor is constructed near Oak Ridge, Tennessee. The project died for lack of support, however. 

De Van, J. H. and Jansen, D, H., Fuels and Materials Development Program Quart. Progr. Rept., Sept. 30 (1968) ORNL-4350, Oak Ridge National Laboratory, p91 Bonilla, C. F., in Reactor Handbook, Vol. IV (ed. S. McLain), Interscience, New York, 107 (1964)... 

The successful operation of the reactor and plutonium extraction plant at Oak Ridge, Tennessee led to the availability of first milligram, and then gram, amounts of plutonium starting early in 1944, The availability of milligram amounts of plutonium led to the immediate discovery of the III oxidation state. 

In 1974, after failure and indications of failure of three commercial reprocessing ventures, the AEC reassigned programs for support of commercial fuel reprocessing to emphasize successful experience and lessons learned from that experience. Responsibilities were transferred from the AEC Division of Reactor Development and Oak Ridge National Laboratory with their pilot plant reprocessing model, to the Division of Production and DuPont Company-operated SRP with their safe, successful production-scale reprocessing experience. 

Slifer, B. C., and J. E. Hench, 1971, Loss of Coolant Accident and Emergency Core Cooling Models for General Electric Boiling Water Reactors, NEDO-10329, General Electric Co., San Jose, CA. (5) Smith, A. M., 1969, Oak Ridge National Lab., Personal communication to J. K. Jones, November. (5)... 

On November 16, 1942, Los Alamos, New Mexico, was selected as the central site (Site Y) for a laboratory to research the physics and design of atomic weapons. Site X was at Oak Ridge, Tennessee and consisted of an experimental reactor, chemical separation plant, and electromagnetic separation facility. An area near... 

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