18-20 June, 2003, Budapest, Hungary
OSSKI
Center (Törley Palace) |
with Exhibition and Pre-Session on Thermal Energy in Hungarian
"THERMO-BRIDGE"
between East and West for technology transfer and
information exchange
Web Site: www.dsy.hu/thermo
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Scientific Society of
Measurement, Automation and Informatics (MATE)
Branch of Thermal Engineering and Thermogrammetry (TE and TGM)
Méréstechnikai, Automatizálási és
Informatikai Tudományos Egyesület
Hőtechnikai és Termogrammetriai (HT és TGM) Szakosztály
MATE Secretariat: H-1372 Budapest, POB. 451.,Hungary
House of Technology, Budapest
V.,Kossuth Lajos tér 6-8.III.318.
Phone: +361-332-9571, Fax:+361-353-1406
E-mail:
mate@mtesz.hu benko@energia.bme.hu |
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Thermomechanics and
defectometry / Hőmechanika és hibafeltárás |
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32/2 |
Study of transient oxidation using the modulated beam reflection
technique
C. Gruss, B.K. Bein* IEE SA,
Echternach, Luxembourg;*Inst. for Experimental Physics III., Ruhr Univ.,
Bochum, Germany
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S5TM02 |
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The
optical reflection of a modulated laser beam has been used to study the
evolution of oxide layers on silicon and copper surfaces. The oxidization of
the surfaces has been induced by a Xenon lamp heating the samples under
atmospheric condition up to several hundred degrees. To improve the transient
signal-to-noise ratio, the probe beam has been intensity-modulated. The
experiment allows a non-destructive in situ characterisation of the evolution
of thin oxide films induced by temperature increases, and the velocity of
growth of the film thickness has been measured with a resolution of several
nanometers.
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Infrared radiation/
Hősugárzás |
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48/4 |
Theoretical and experimental analysis
of a photothermal modulation technique for application to moving samples
C.
Gruss, R.Huttner**, B.K. Bein* IEE SA, Echternach,
Luxembourg; *Inst. for Experimental Physics III., Ruhr Univ., Bochum,
Germany;** Whirpool, Technology Center, Schondorf, Germany |
S7IR06 |
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Photothermal measurement techniques have the potential to
serve as on-line controlling devices in many industrial processes. Owing to
the low absorptance of many materials, modulated methods are privileged in
comparison to pulsed excitation methods since they offer a better
signal-to-noise ratio. The effect of modulation on the moving sample,
however, has not be studied sufficiently so far, and most of the
measurements done with moving samples are usually analysed only
qualitatively. Here a theoretical calculation and interpretation for
modulated excitation on moving samples is presented, with good agreement
between the calculated theoretical values and the measured data.
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Contact details:
Dr.
Christian Gruss
Von Der Heydenstrasse
D-54668 Prümzunhay
Germany
Tel.:49(0) 6523933811
E-mail:
Christian.gruss@iee.lu |
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18-20 June, 2003, Budapest,Hungary |
OSSKI
Center (Törley Palace)
"Fodor
József" National Center of Public Heath
"Frédéric Joliot-Curie"
National Research Institute for
Radiobiology and Radiohygiene. (OKK-OSSKI)
www.osski.hu
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