Harwell Laboratory

Prof Dr. John G. Riviere Harwell Laboratory AE A Technology Didcot... 

The use of electromagnetic acoustic transducers (EMAT) obviates the coupling problems already referred to, and has been applied successfully to the inspection of boiler tubes. Ultrasonic time of flight diffraction (TOFD), developed by the Harwell Laboratory" , is utilised to fingerprint flaws (cracks) in process plant. Subsequent examination at, say, six month intervals can indicate any growth or extension of the crack. It is claimed that changes in crack height of 0-5 mm or less be estimated. 

Under development are intelligent vehicles for crack detection. An elastic-wave version (developed by British Gas and the Harwell Laboratory) is currently being evaluated in a test-loop. This vehicle has successfully detected stress-corrosion cracks in the test-loop. The Gas Research Institute (USA) is sponsoring development work with intelligent vehicles at the Battelle Columbus Division (Ohio). Facilities for testing vehicles were commissioned in 1991... 

Anon., Monitoring Flaw Growth, NDT Centre, Harwell Laboratory (1989)... 

CSC atomization was developed by AEA Harwell Laboratories in the UK in the early 1970 s. Initially, the CSC process was used for the atomization of refractory and oxide materials such as alumina, plutonium oxides, and uranium monocarbide in nuclear fuel applications. Since it is well-suited to the atomization of reactive metals/alloys or those subject to segregation, the CSC process has been applied to a variety of materials such as iron, cobalt, nickel, and titanium alloys and many refractory metals. The process also has potential to scale up to a continuous process. 

Harwell Laboratory. Ceneral-purpose Computational Fluid Dynamics (CFD) Code. United Kingdom, Harwell Laboratory. 

Kang, C. (1989) Measurements of whole body radiocaesium at the Harwell Laboratory, 1976-1988. Health Physics, 57, 995-1001. 

Sandalls, F.J., Eggleton, A.E.J. Gaudern, S.L. (1989) Uptake of radiocaesium by upland vegetation in relation to soil type. Harwell Laboratory Oxfordshire Report AERE 13389. 

Over the last 40 years, Harwell Laboratory has contributed in one way or another to the study of radioactive aerosols, both in its theoretical and practical aspects. Also, aerosols have been used experimentally, particularly in the study of the interaction between airborne gases or... 

Nicholson, S. and Shaw, P.N. (1991) An investigation into the organic speciation of radionuclides in marine organisms. AEA Report EE-0070, Harwell Laboratory, Oxon, UK, 30 pp. 

Nicholson, A., Long, S.E., McEwen, I. and Sparkes, S.T. (1990) The development of a speciation technique for uranium in the environment. AERE R13436, AEA Environment and Technology, Harwell Laboratory, Oxon, UK, 22 pp. 

M. J. Norgett, A User s Guide to HADES. Technical Report AERE-R7015, AERE Harwell Laboratory, 1972. 

N.S. Lightfoot and C.R. Negus, Investigation of the Knock Phenomenon in an Optically-Accessed Engine, Combustion Research Conference, 18/19 March 1986 (Publications Office, Harwell Laboratory, 1986) p. 116. 

AEA Fuel Services, Chemistry Division, Harwell Laboratory, Oxfordshire 0X11 OEA (UK). 

McMahon, W A critical intercomparison of techniques for the determination of low levels of long lived radionuclides. AERE R 13617, Harwell Laboratory, Oxfordshire, U.K. (1989). 

Harwell Laboratory, UK PWR wastes (wastes UF with sorption... 

A.R. Curties and W.P. Sweetenham, Facsimile / Chekmat User s Manual, Computer Science and System Division Harwell Laboratory, Oxford, UK, 1987. 

Curtis, A. R. and Sweetenham, W. P. (1987) FACSIMILE/CHEKMAT User s Manual. Harwell Laboratory Report, UK Atomic Energy Authority, Atomic Energy Research Establishment, Computer Science and Systems Division, 12805. 

Atomic Energy Authority Technology, Harwell Laboratory, Oxfordshire, 0X11, United Kingdom... 

Norgett, M.J. (1974) Hartwell Report AERE-R 7650, AEA Technology, Harwell Laboratory, Didcot, Oxon 0X11 ORA. 

Produced by the Waste Management Information Bureau, Harwell Laboratory,... 

M. A. Taylor, Plate-Fin Heat Exchangers Guide to Their Specification and Use, HTFS, Harwell Laboratory, Oxon, UK, amendment to 1st ed., 1989. 

The instrumentation shown in the previous sections has been further improved in our laboratory for a better compensation of background signals [40]. At the same time, based on the concept of the instrumentation shown in Fig. 5 the new sets of the spectrometer have been developed in Argonne National Laboratory [20, 21, 25] and Harwell Laboratory [22, 26, 27] and Lawrence Livermore Naional Laboratory [23] for the radiochemical speciation of aqueous actinide ions. These activities are summarized as follows. 

Atomic Energy Authority Harwell Laboratory Oxford, UK... 

Campbell, D J.V. (1991a) Landfill gas - under control in Proc. Harwell Waste Management Symposium - Challenges in waste management. Harwell Laboratory, Oxon, UK. 

Campbell, D.J.V. and Croft, B.C. (1991) Landfill gas enhancement -Brogborough test cell programme. In Proc. Landfill gas Energy and Environment 90 (Richards.G.E. and Alston,Y.R. eds.). Harwell Laboratory, Oxon, U.K. Canter, L.W., Knox, R.C. and Fairchild, D.M. (1987) Groundwater quality protection. Lewis Publishers Inc. USA. 

Chynoweth, D.P. and Legrand, R. (1988) Anaerobic digestion as an integral part of municipal waste management. In Landfill gas and anaerobic digestion of solid waste (Alston, Y.R. and Richards, G.E.), pp 467-480, UKAEA, Harwell Laboratory, Oxfordshire, UK. 

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