Schematic of the experimental cell used for studying the effect of thermophoresis towards prevention of re-deposition of expelled particulates following laser cleaning.
(a) A typical unirradiated bare SS surface at a magnification of 500. (b) A typical representative area of an unirradiated surface of SS deposited with CuTe sub-micron sized particulates at a magnification of 500. (c) Histogram depicting the size distribution (in μm) of these deposited particulates.
Surface of SS with CuTe nanoparticles after one laser exposure under ambient conditions indicating the extent of re-deposition occurring.
(a) CuTe on SS exposed to one laser exposure under the action of thermophoresis. In the inset is shown the particle count measurements of the re-deposited particulates (encircled green regions) using the measurement program feature of microscopy. (b) CuTe on SS exposed to two laser exposures under the action of thermophoresis.
(a) CuTe deposited on SS after one laser exposure in vacuum. (b) CuTe on SS after two laser exposures in vacuum.
Particle size distribution of CuTe on SS exposed to one laser pulse under ambient, thermophoresis, and vacuum conditions.
CuTe nanoparticle size distribution (in μm) deposited on SS after two laser exposures under ambient, thermophoresis, and vacuum conditions.
Particle number measurements of re-deposited particulates following decontamination at different operating conditions using measurement program feature in microscopy.
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