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Proceedings Paper

Ablation of concrete surfaces using a compact high-power CO2 waveguide array laser with beam shaping
Author(s): Francisco J. Villarreal; R. Abram; Howard J. Baker; Denis R. Hall; D. R. Jones; E. P. Johnston; G. J. Shannon; William M. Steen; Julian T. Spencer
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Paper Abstract

The composite beam from a 64-element carbon dioxide array laser, which produces an average power output of 2 kW, has been used in a series of surface processing experiments. In one set of experiments related to nuclear power station decommissioning, the array beam has been used to process the surface of a range of different density concrete materials. Scabbling trials have achieved concrete removal rates of approximately 1200 cm3hr-1kW-1 and average scabble depths of approximately 5 mm with incident power densities as low as 80 Wcm-2.

Paper Details

Date Published: 14 September 1998
PDF: 8 pages
Proc. SPIE 3343, High-Power Laser Ablation, (14 September 1998); doi: 10.1117/12.321610
Show Author Affiliations
Francisco J. Villarreal, Heriot-Watt Univ. (United Kingdom)
R. Abram, Heriot-Watt Univ. (United Kingdom)
Howard J. Baker, Heriot-Watt Univ. (United Kingdom)
Denis R. Hall, Heriot-Watt Univ. (United Kingdom)
D. R. Jones, Heriot-Watt Univ. (United Kingdom)
E. P. Johnston, Univ. of Liverpool (United Kingdom)
G. J. Shannon, Univ. of Liverpool (United Kingdom)
William M. Steen, Univ. of Liverpool (United Kingdom)
Julian T. Spencer, British Nuclear Fuels plc (United Kingdom)

Published in SPIE Proceedings Vol. 3343:
High-Power Laser Ablation
Claude R. Phipps, Editor(s)

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