Share Email Print
cover

Proceedings Paper

Laser surface inspections: fundamentals and applications to monitor inner surface conditions of nuclear fusion reactor chambers
Author(s): Koichi Kasuya; S. Ozawa; T. Norimatsu; H. Azechi; K. Mima; S. Nakai; S. Suzuki; B. Budner; W. Mroz; N. Kasuya; W. Kasuya; Kei. Kasuya; Y. Izawa; H. Furukawa; Y. Shimada; T. Yamanaka; M. Nakai; K. Nagai; K. Yokoyama; K. Ezato; M. Enoeda; M. Akiba; A. Prokopiuk
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The most recent fundamental research results to investigate surface erosions of nuclear fusion candidate chamber materials are described in short. We used a commercial surface profiler with a red semiconductor laser. Various material surfaces ablated and eroded by a rather short pulse electron beam and a short pulse ArF laser light were measured with this surface profiler and the associated three-dimensional analysis software. Threshold input levels for various sample surface erosions with electron and laser beams were clearly decided for the first time with our new method in this article. After the above fundamental results were gathered, the methods to inspect inner surface conditions of nuclear fusion reactor chambers were newly proposed with various kinds of laser displacement sensors. The first one is the erosion monitor with the above profiler, and the second one is the laser induced ultrasonic wave detection method to inspect deeper surface layers than the first one.

Paper Details

Date Published: 15 November 2010
PDF: 10 pages
Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 775119 (15 November 2010); doi: 10.1117/12.878465
Show Author Affiliations
Koichi Kasuya, Institute of Applied Flow (Japan)
Institute of Laser Technology (Japan)
S. Ozawa, Toshiba Co. Ltd. (Japan)
T. Norimatsu, Osaka Univ. (Japan)
H. Azechi, Osaka Univ. (Japan)
K. Mima, Osaka Univ. (Japan)
Graduate School for the Creation of New Photonics Industries (Japan)
S. Nakai, Osaka Univ. (Japan)
S. Suzuki, Japan Atomic Energy Agency (Japan)
B. Budner, Military Univ. of Technology (Poland)
W. Mroz, Military Univ. of Technology (Poland)
N. Kasuya, Institute of Applied Flow (Japan)
W. Kasuya, Institute of Applied Flow (Japan)
Kei. Kasuya, Institute of Applied Flow (Japan)
Y. Izawa, Institute of Laser Technology (Japan)
H. Furukawa, Institute of Laser Technology (Japan)
Y. Shimada, Institute of Laser Technology (Japan)
T. Yamanaka, Osaka Univ. (Japan)
M. Nakai, Osaka Univ. (Japan)
K. Nagai, Osaka Univ. (Japan)
K. Yokoyama, Japan Atomic Energy Agency (Japan)
K. Ezato, Japan Atomic Energy Agency (Japan)
M. Enoeda, Japan Atomic Energy Agency (Japan)
M. Akiba, Japan Atomic Energy Agency (Japan)
A. Prokopiuk, Military Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 7751:
XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Tanja Dreischuh; Petar A. Atanasov; Nikola V. Sabotinov, Editor(s)

© SPIE. Terms of Use
Back to Top