Development of a high-average-power small-scale Nd:YAG laser system for tunnel inspection

Mikami, Katsuhiro; Hasegawa, Noboru; Okada, Hajime; Kondo, Shuji; Kawachi, Tetsuya

An outdoor-use laser system to improve the performances of existing tunnel inspection techniques is studied. One of the typical concepts is that the blow by hammer in routine hammering test is replaced by the laser pulse irradiation. This new laser system is required to provide high average output power (5 J, 50 Hz, 15 ns) with a compact geometry enough to mount on the inspection vehicle (4.2 m 0.8 m). Dramatic speed-up of the inspection is expected by the combination of this new laser system and a laser scanning frequency measurement system.

Language	:	Japanese
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Meeting title	:	平成27年度「レーザー励起X線源とその応用研究会」
Held date	:	2015/12
Location (city)	:	広島
Location (country)	:	日本
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Keywords	:	レーザー開発; インフラ検査; SIP
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Registration No. : BB20151800
JAEA Abstracts No. :
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