Plasma particle lofting : experimental investigation of dust removal force

L.C.J. Heijmans, S. Nijdam

Research output: Contribution to conferencePosterAcademic

Abstract

Dust is everywhere. Sometimes it's harmless, but sometimes it needs to be removed. Especially in modern optical machinery, dust control can be of vital importance. In this research we look at dust on a surface. We focus on the behaviour under influence of a plasma.

The dust particles will stick to a surface due to the adhesive Van der Waals force. This force is hard to determine theoretically, as it highly depends on the local surface topology. Therefore, we have developed a method to experimentally measure this adhesive force. This method uses the inverse piezoelectric effect. We apply vibrations with increasing amplitude to the surface. This way we can observe which force is required for dust removal.

The required force is reduced when a plasma is applied over the surface. This may have different causes: the charging due to the plasma sheath may cause an additional force; the surface chemistry may change causing a lower adhesive force; the piezo vibrations may be influenced by the electrons. Current research is ongoing to find which of these effects causes the force reduction.

Conference

Conference27th NNV Symposium on Plasma Physics and Radiation Technology
CountryNetherlands
CityLunteren
Period10/03/1511/03/15
Other
Internet address

Fingerprint

lofting
dust
adhesives
causes
vibration
plasma sheaths
Van der Waals forces
machinery
charging
topology
chemistry

Bibliographical note

Proceeding of the 27th Symposium Plasma Physics & Radiation Technology, 10-11 March 2015, Lunteren, the Netherlands

Cite this

Heijmans, L. C. J., & Nijdam, S. (2015). Plasma particle lofting : experimental investigation of dust removal force. Poster session presented at 27th NNV Symposium on Plasma Physics and Radiation Technology, Lunteren, Netherlands.
Heijmans, L.C.J. ; Nijdam, S./ Plasma particle lofting : experimental investigation of dust removal force. Poster session presented at 27th NNV Symposium on Plasma Physics and Radiation Technology, Lunteren, Netherlands.1 p.
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abstract = "Dust is everywhere. Sometimes it's harmless, but sometimes it needs to be removed. Especially in modern optical machinery, dust control can be of vital importance. In this research we look at dust on a surface. We focus on the behaviour under influence of a plasma.The dust particles will stick to a surface due to the adhesive Van der Waals force. This force is hard to determine theoretically, as it highly depends on the local surface topology. Therefore, we have developed a method to experimentally measure this adhesive force. This method uses the inverse piezoelectric effect. We apply vibrations with increasing amplitude to the surface. This way we can observe which force is required for dust removal.The required force is reduced when a plasma is applied over the surface. This may have different causes: the charging due to the plasma sheath may cause an additional force; the surface chemistry may change causing a lower adhesive force; the piezo vibrations may be influenced by the electrons. Current research is ongoing to find which of these effects causes the force reduction.",
author = "L.C.J. Heijmans and S. Nijdam",
note = "Proceeding of the 27th Symposium Plasma Physics & Radiation Technology, 10-11 March 2015, Lunteren, the Netherlands; 27th NNV Symposium on Plasma Physics and Radiation Technology ; Conference date: 10-03-2015 Through 11-03-2015",
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Heijmans, LCJ & Nijdam, S 2015, 'Plasma particle lofting : experimental investigation of dust removal force' 27th NNV Symposium on Plasma Physics and Radiation Technology, Lunteren, Netherlands, 10/03/15 - 11/03/15, .

Plasma particle lofting : experimental investigation of dust removal force. / Heijmans, L.C.J.; Nijdam, S.

2015. Poster session presented at 27th NNV Symposium on Plasma Physics and Radiation Technology, Lunteren, Netherlands.

Research output: Contribution to conferencePosterAcademic

TY - CONF

T1 - Plasma particle lofting : experimental investigation of dust removal force

AU - Heijmans,L.C.J.

AU - Nijdam,S.

N1 - Proceeding of the 27th Symposium Plasma Physics & Radiation Technology, 10-11 March 2015, Lunteren, the Netherlands

PY - 2015/3/10

Y1 - 2015/3/10

N2 - Dust is everywhere. Sometimes it's harmless, but sometimes it needs to be removed. Especially in modern optical machinery, dust control can be of vital importance. In this research we look at dust on a surface. We focus on the behaviour under influence of a plasma.The dust particles will stick to a surface due to the adhesive Van der Waals force. This force is hard to determine theoretically, as it highly depends on the local surface topology. Therefore, we have developed a method to experimentally measure this adhesive force. This method uses the inverse piezoelectric effect. We apply vibrations with increasing amplitude to the surface. This way we can observe which force is required for dust removal.The required force is reduced when a plasma is applied over the surface. This may have different causes: the charging due to the plasma sheath may cause an additional force; the surface chemistry may change causing a lower adhesive force; the piezo vibrations may be influenced by the electrons. Current research is ongoing to find which of these effects causes the force reduction.

AB - Dust is everywhere. Sometimes it's harmless, but sometimes it needs to be removed. Especially in modern optical machinery, dust control can be of vital importance. In this research we look at dust on a surface. We focus on the behaviour under influence of a plasma.The dust particles will stick to a surface due to the adhesive Van der Waals force. This force is hard to determine theoretically, as it highly depends on the local surface topology. Therefore, we have developed a method to experimentally measure this adhesive force. This method uses the inverse piezoelectric effect. We apply vibrations with increasing amplitude to the surface. This way we can observe which force is required for dust removal.The required force is reduced when a plasma is applied over the surface. This may have different causes: the charging due to the plasma sheath may cause an additional force; the surface chemistry may change causing a lower adhesive force; the piezo vibrations may be influenced by the electrons. Current research is ongoing to find which of these effects causes the force reduction.

M3 - Poster

ER -

Heijmans LCJ, Nijdam S. Plasma particle lofting : experimental investigation of dust removal force. 2015. Poster session presented at 27th NNV Symposium on Plasma Physics and Radiation Technology, Lunteren, Netherlands.