Chalk River Nuclear Laboratories

Sears VF (1984) Thermal-neutron scattering lengths and cross-sections for condensed matter research. Chalk River Nuclear Laboratories, Chalk River... 

Neuburg, H.J. Atherley, J.F. Walker, L.G. "Girdler-Sulfide Process Physical Properties," AECL-5702. Chalk River Nuclear Laboratories Chalk River, Ontario, May 1977. 

Exotic Nuclei and Their Decay. As reported by J.C. Hardy (Chalk River Nuclear Laboratories. Atomic Energy of Canada, Ltd.), recent advances in nuclear accelerators and experimental techniques have led to an increasing ability to synthesize new isotopes. As isotopes are produced with more and more extreme combinations of neutrons and protons in their nuclei, new phenomena are observed, and the versatility of the nucleus is increased as a laboratory for studying fundamental forces. Hardy reports that, among the newly discovered decay modes are (1) proton radioactivity, (2) triton, two-proton, two-neutron, and three-neutron decays that are beta-delayed, and (3) 14C emission m radioactive decay, Precise tests of the properties of the weak force have also been achieved. 

Carver MB, Hanlet DV, Chapin KR. MAKSIMA-CHEMIST, A program for mass action kinetic simulated manipulation and integration using stiff techniques, Chalk River Nuclear Laboratories Report, Atomic Energy Canada Ltd. 6413, 1979 1-28. 

Atomic Energy of Canada Ltd., Chalk River Nuclear Laboratories,... 

Ground Water Geochemistry. Ground water from the lower aquifer in the lower Perch Lake Basin at the Chalk River Nuclear Laboratories, Figure 2, was used for field elution studies to provide water of different redox characteristics. Water from piezometer "0" in the transition area, and from KNEW in the discharge area was used as being representative of "neutral" and... 

Figure 2. The lower Perch Lake basin. Chalk River Nuclear Laboratories, showing the location of piezometers HA, O, and KNEW. The screens of these piezometers are 60 cm long and are located at the bottom of the piezometer, adjacent to the numbers on the figure.

Jackson R. E. and Inch K. J. (1989) The in-situ absorption of Sr-90 in a sand aquifer at the Chalk River nuclear laboratories. J. Contamin. Hydrol. 4, 27-50. 

Erast, P.C., French, P.M., Axford, D.J., and Snell, V.G., Development of Small Reactor Safety Criteria in Canada, paper presented at the International Symposium on Research Reactor Safety, Operations and Modifications, 1989 October 23-27, Chalk River Nuclear Laboratories. 

Generator (ING) - as a research and isotope-production facility. The project was cancelled in 1968, but Chalk River (known as Chalk River Nuclear Laboratories (CRNL) after 1960) liked the idea of a medical linear-accelerator that could salvage some of the ING research. CPD began working with Chalk River on a 5-6-MeV standing-wave linear accelerator. Chalk River would develop the system as one of its own research programs, while CPD would design a therapy unit around it. 

When more stringent international regulations governing the transportation of radioactive materials were introduced in the 1960s, CPD developed an improved line of shipping containers. Pictured here is a safety test performed at AECL s Chalk River Nuclear Laboratories which involved dropping a container onto a concrete and steel surface from a height of nine metres. 

Retired AECL employees Alec Eastwood and Harry Collins took time to share their knowledge of isotope production and the relationship of their employer, AECL Chalk River Nuclear Laboratories, with Commercial Products Division (CPD), the forerunner of MDS Nordion. Ron Hutcheon provided the Chalk River perspective on CPD s accelerator program. 

Some of the better studied sites contaminated with Sr and Cs include (i) The Nitrate Disposal Pit at Chalk River Nuclear Laboratory in Ontario, Canada (ii) The A Disposal area at Chalk River the 100-K and 100-N area at the Hanford Site in Washington the 200 East area at Hanford, the 600 area at Hanford the Maxey Flats Low Level Waste (LLW) Site in Kentucky the West Valley LLW Site in New York, the Sheffield LLW Site in Illinois and the Barnwell LLW site in South Carolina. Barnwell is the only active LLW disposal site among those listed above. Surface water and soil contamination by Sr and Cs exists at Oak Ridge National Laboratory in Tennessee. There also is an apparently stable Sr plume at Brookhaven National Laboratory on Long Island. 

Chalk River Nuclear Laboratory, lower Perch Lake Basin, Ontario, Canada... 

Jackson, R.F., and K.J. Inch. 1980. Hydrogeochemical processes affecting the migration of radionuclides in a fluvial sand aquifer at the Chalk River Nuclear Laboratories. National Hydrology Research Institute. 

Parsons, P.J. 1961. Movement of radioactive waste through soil III Investigating the migration of fission products from high-ionic liquids deposited in soil. p. 45. Chalk River Nuclear Laboratories. 

Robertson, D.E., M.P. Bergeron, D. Holford, K.H. Abel, C.W. Thomas, D.A. Myers, R.C.D., Killey, GL. Moltanyer, J.L. Young, and T. Ohnuki. 1989. Demonstration of performance modeling of a low-level waste shallow-land burial site A comparison of predictive radionuclide transport modeling versus field observations at the A Disposal Area, Chalk River Nuclear Laboratories. U.S. National Research Council, Washington, DC. 

Metcalfe R. - Performance Analysis of Axisymmetric Flat Face Mechanical Seals , AECL-4432, Report for Chalk River Nuclear Laboratories, 1973. 

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