In the first nuclear plant in Tokyo Electric Power Company Fukushima, the worker entered the reactor building of the third machine for the first time after hydrogen exploded, and the amount etc. of the radiation were examined.
The worker entered all the reactor buildings of the third machine from the first machine that had been being driven when the earthquake occurred by this.
In the first nuclear power plant in Fukushima, it is included in the work schedule where the water that began to leak from the injection of nitrogen to prevent the hydrogen detonation, and containment is made to circulate to the nuclear reactor and the plan to advance cooling is new, and it is sped up to maintain the working environment in the reactor building.
Therefore, two workers entered the left third machine for about ten minutes from 4:30PM of the 18th though the worker entered the morning of the 18th as for the second machine on the fifth this month, and internal doses of radiation were measured from the first machine that had been being driven when the earthquake occurred to the reactor building of the first machine among the third machines, too.
The worker measures high doses of radiation of 160?170 millisievert hour as a result of searching for the vicinity etc. of the door of the containment that becomes the injection route of nitrogen, and Tokyo Electric Power Company assumes, "In the current state, it is difficult to do the preparation work of the nitrogen injection".
The amount of the exposure of two workers who had entered the building was 2?3 millisievert.
After the hydrogen detonation had occurred on the following March 14 of the third due to the earthquake, the worker entered all of the third machine from the first machine that had been being driven when the earthquake occurred for the first time in the first nuclear power plant in Fukushima in this as for worker's entering in the reactor building of the third machine.
On the other hand, the appearance of the second machine from which four workers had come the morning of the 18th was the 19th clarified, too.
The worker entered from double-entry doors in the south of the first floor in the nuclear reactor building, did surroundings of containment once, and measured the amount of the radiation.
As a result, the numerical value of several millisieverts was measured in a low point by 50 millisieverts by a high point.
Moreover, it is thought that this gets cold the steam of the spent fuel pool in the upstairs, becomes water, and fell though the puddle is three places, it is found, and there was a place where water has fallen on like rain in the inside, too.
Tokyo Electric Power Company is speaking with "The second machine might work comparatively easily if doses of radiation are lower than the first machines, and it removes moisture".
