Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Patent
1994-11-03
1996-07-23
Pianalto, Bernard
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
427140, 427289, 427344, 4273855, 4273977, 427403, 4274071, 4274191, 427427, 427444, 427596, B05D 300
Patent
active
055387640
ABSTRACT:
A method of treating a concrete or other non-metallic surface contaminated with embedded radionuclides to reduce the total level of radioactivity in a concrete or other hydraulically bonded material body is described. The method comprises the steps of producing relative mutual movement between the surface to be removed and a laser heat source such that a layer adjacent the surface is caused to be detached from said concrete body. The surface may be detached as a vapour, in flakes or as a sheet.
REFERENCES:
Derwent Abstract No. AX-91-049031/07, relating to JP 3002595. (no date available).
Derwent Abstract No. 92-157483/19, relating to JP-4099999. (no date available).
S. J. Lee et al., "Shock Wave Analysis of Laser Assisted Particle Removal," J. Appl. Phys., vol. 74, No. 12, Dec. 15, 1993, pp. 7044-7047.
D. J. Flesher, "Lasers and High-Energy Light as a Decontamination Tool for Nuclear Application," Westinghouse Hanford Co., Dec. 1993.
N. S. Cannon et al, "Lasers for the Radioactive Decontamination of Concrete," Westinghouse Hanford Co., Oct. 1993.
Li Lin
Modern Peter J.
Steen William M.
British Nuclear Fuels PLC
Pianalto Bernard
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