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Kuriyama, Yasutoshi*; Iwashita, Yoshihisa*; Hirota, Katsuya*; Hayano, Hitoshi*; Fuwa, Yasuhiro
Proceedings of 16th Annual Meeting of Particle Accelerator Society of Japan (Internet), p.32 - 35, 2019/10
Research and development of gradient enhancement of superconducting RF accelerating cavity is carried out by accelerator research institute in the world, but defects on the cavity surface limit accelerating electric field. Therefore, development of "Inside inspection system for superconducting accelerated cavity" that optically visualizes the state of the inner surface of the superconducting cavity has been carried out, and results have been achieved. In this research, we apply image processing technology that has developed remarkably in recent years to the internal inspection system, and advanced the defect recognition method. Extraction of depth information and image synthesis were performed from images obtained with different focal positions with the camera for internal surface inspection. Also, by performing pattern recognition processing on the images, automatic detection of defects has become possible. By integrating these techniques into the cavity inner surface inspection system, it becomes possible to shorten the scan time for defect search and acquire the defect shape.
Takeuchi, Suehiro; Matsuda, Makoto; Minehara, Eisuke; Sugimoto, Masayoshi; Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro; Nishimori, Nobuyuki; Ouchi, Nobuo; Kusano, Joichi; et al.
Proc. of 8th Workshop on RF Superconductivity, 1, p.233 - 236, 1998/00
no abstracts in English
Takeuchi, Suehiro; Matsuda, Makoto
Proc. of 8th Workshop on RF Superconductivity, 1, p.237 - 247, 1998/00
no abstracts in English
Takeuchi, Suehiro
Proc. of 22nd Linear Accelerator Meeting in Japan, p.311 - 313, 1997/00
no abstracts in English
; Ishii, Tetsuro; ; Zhang, Y.*;
Nuclear Instruments and Methods in Physics Research A, 382(1-2), p.153 - 160, 1996/00
Times Cited Count：30 Percentile：90.25(Instruments & Instrumentation)no abstracts in English
; Ishii, Tetsuro; ; Zhang, Y.*;
JAERI-Conf 95-021, 0, p.194 - 196, 1995/10
no abstracts in English
JAERI-Tech 95-034, 163 Pages, 1995/06
no abstracts in English
Proc. of the 5th Japan-China Joint Symp. on Accelerators for Nuclear Science and Their Applications, p.189 - 191, 1993/00
no abstracts in English
; Shibata, Michihiro; Ishii, Tetsuro;
Proc. of the 9th Symp. on Accelerator Science and Technology, p.437 - 439, 1993/00
no abstracts in English
DESY-M-92-01 (Vol. 1), p.76 - 83, 1992/04
no abstracts in English
; Ishii, Tetsuro; Min, B. J.*; Shibata, Michihiro
DESY-M-92-01 (Vol. l), p.395 - 405, 1992/04
no abstracts in English
; Ishii, Tetsuro; Ikezoe, Hiroshi; Tomita, Yoshiaki
Nuclear Instruments and Methods in Physics Research A, 287, p.257 - 262, 1990/00
Times Cited Count：12 Percentile：75.58(Instruments & Instrumentation)no abstracts in English
Proc. of the 2nd Int. Symp. on Advanced Nuclear Energy Research; Evolution by Accelerators, p.357 - 361, 1990/00
no abstracts in English
