Alpha Camera is developed as a remotely-operated detector to check the alpha contamination of wastes generated during decommissioning of Fukushima Daiichi Nuclear Power Station. The smear method is currently used to check the alpha contamination inside the plant. However, a large amount of waste will be generated from future decommissioning. Therefore, in order to reduce the exposure of workers, a remotely-operated alpha detector with wide range is needed. In this paper, to confirm that the Alpha Camera can...
英字タイトル:
Development of remote alpha contamination measurement detector for field application

Erroneous disconnection of buried pipe in reinforced concrete that cannot be found in the Existing radar type prospecting has occurring. However, it is very difficult to solve the problem which. For this purpose, we have developed a beam focusing radar system using the phased array method. Our development system shows to can be detected the buried object without interference to the rebar....
英字タイトル:
Exploration for buried object in concrete using phased array method

We have been developing a system equipped with a mixture of hundreds of sensors for temperature, strain, and vibration. Previously, we confir med that the system could interrogate 192 points FBG sensors using a combination of time division multiplexing (TDM), waelength division mult iplexing (WDM), and an algorithm to measure the static and dynamic signal with one system. We a field test is performed and since it confirme d having formation nature as a multipoint apparatus surveillance system of 192 points...
英字タイトル:
Optic fiber of apparatus surveillance system with Condition based maintenance