Non-contact measurement of oxide thickness with a laser ultrasonic technique

Jonne Haapalainen; Joona Eskelinen; Tarja Jäppinen; Stefan Sandlin; Edward Hæggström

Non-contact measurement of oxide thickness with a laser ultrasonic technique

Jonne Haapalainen, Joona Eskelinen, Tarja Jäppinen, Stefan Sandlin, Edward Hæggström

University of Helsinki

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

Abstract

Non-contact laser ultrasound (LU) method is a potential tool for structural health evaluation in power plants. In this study a LU surface wave method was employed to determine the oxide layer thickness in zircaloy tubes used as cladding of fuel rods in nuclear reactors. Ultrasound excitation was done with a pulsed laser whereas a laser doppler interferometer was used to remotely receive the propagating ultrasonic signals. To show the method's capability results from a 8 µm zirconium oxide layer measurement are presented.

Original language	English
Title of host publication	Baltica VIII
Subtitle of host publication	Life Management and Maintenance for Power Plants
Place of Publication	Espoo
Publisher	VTT Technical Research Centre of Finland
Pages	233-238
Volume	2
ISBN (Electronic)	978-951-38-7594-7
ISBN (Print)	978-951-38-7593-2
Publication status	Published - 2010
MoE publication type	B3 Non-refereed article in conference proceedings
Event	BALTICA VIII - International Conference on Life Management and Maintenance for Power Plants - Helsinki-Stockholm, Finland Duration: 18 May 2010 → 20 May 2010

Publication series

Series	VTT Symposium
Number	265
ISSN	0357-9387

Conference

Conference	BALTICA VIII - International Conference on Life Management and Maintenance for Power Plants
Country/Territory	Finland
City	Helsinki-Stockholm
Period	18/05/10 → 20/05/10

Access to Document

https://publications.vtt.fi/pdf/symposiums/2011/S265.pdf

Cite this

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title = "Non-contact measurement of oxide thickness with a laser ultrasonic technique",

abstract = "Non-contact laser ultrasound (LU) method is a potential tool for structural health evaluation in power plants. In this study a LU surface wave method was employed to determine the oxide layer thickness in zircaloy tubes used as cladding of fuel rods in nuclear reactors. Ultrasound excitation was done with a pulsed laser whereas a laser doppler interferometer was used to remotely receive the propagating ultrasonic signals. To show the method's capability results from a 8 µm zirconium oxide layer measurement are presented.",

author = "Jonne Haapalainen and Joona Eskelinen and Tarja J{\"a}ppinen and Stefan Sandlin and Edward H{\ae}ggstr{\"o}m",

year = "2010",

language = "English",

isbn = "978-951-38-7593-2",

volume = "2",

series = "VTT Symposium",

publisher = "VTT Technical Research Centre of Finland",

number = "265",

pages = "233--238",

booktitle = "Baltica VIII",

address = "Finland",

note = "BALTICA VIII - International Conference on Life Management and Maintenance for Power Plants ; Conference date: 18-05-2010 Through 20-05-2010",

}

Haapalainen, J, Eskelinen, J, Jäppinen, T, Sandlin, S & Hæggström, E 2010, Non-contact measurement of oxide thickness with a laser ultrasonic technique. in Baltica VIII: Life Management and Maintenance for Power Plants. vol. 2, VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 265, pp. 233-238, BALTICA VIII - International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 18/05/10. <https://publications.vtt.fi/pdf/symposiums/2011/S265.pdf>

Non-contact measurement of oxide thickness with a laser ultrasonic technique. / Haapalainen, Jonne; Eskelinen, Joona; Jäppinen, Tarja et al.
Baltica VIII: Life Management and Maintenance for Power Plants. Vol. 2 Espoo: VTT Technical Research Centre of Finland, 2010. p. 233-238 (VTT Symposium; No. 265).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

TY - GEN

T1 - Non-contact measurement of oxide thickness with a laser ultrasonic technique

AU - Haapalainen, Jonne

AU - Eskelinen, Joona

AU - Jäppinen, Tarja

AU - Sandlin, Stefan

AU - Hæggström, Edward

PY - 2010

Y1 - 2010

N2 - Non-contact laser ultrasound (LU) method is a potential tool for structural health evaluation in power plants. In this study a LU surface wave method was employed to determine the oxide layer thickness in zircaloy tubes used as cladding of fuel rods in nuclear reactors. Ultrasound excitation was done with a pulsed laser whereas a laser doppler interferometer was used to remotely receive the propagating ultrasonic signals. To show the method's capability results from a 8 µm zirconium oxide layer measurement are presented.

AB - Non-contact laser ultrasound (LU) method is a potential tool for structural health evaluation in power plants. In this study a LU surface wave method was employed to determine the oxide layer thickness in zircaloy tubes used as cladding of fuel rods in nuclear reactors. Ultrasound excitation was done with a pulsed laser whereas a laser doppler interferometer was used to remotely receive the propagating ultrasonic signals. To show the method's capability results from a 8 µm zirconium oxide layer measurement are presented.

M3 - Conference article in proceedings

SN - 978-951-38-7593-2

VL - 2

T3 - VTT Symposium

SP - 233

EP - 238

BT - Baltica VIII

PB - VTT Technical Research Centre of Finland

CY - Espoo

T2 - BALTICA VIII - International Conference on Life Management and Maintenance for Power Plants

Y2 - 18 May 2010 through 20 May 2010

ER -

Non-contact measurement of oxide thickness with a laser ultrasonic technique

Abstract

Publication series

Conference

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