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High-level radiation in Fukushima water High-levels of radiation have been detected in tap water at municipalities across Fukushima Prefecture, where the troubled Dai-ichi nuclear power plant is located. Water sampled in Iitate village on Sunday contained 965 becquerels of radioactive iodine-131 per liter, more than 3 times the government safety limit of 300 becquerels per liter. Water sampled in Tamura city last Thursday contained 348 becquerels of iodine, but the level was down to 161 becquerels 2 days later. Water from 4 other cities in the prefecture had iodine levels above the 100-becquerel per liter safety limit for infants as of Monday.
High-level radiation in Fukushima water
High-levels of radiation have been detected in tap water at municipalities across Fukushima Prefecture, where the troubled Dai-ichi nuclear power plant is located. Water sampled in Iitate village on Sunday contained 965 becquerels of radioactive iodine-131 per liter, more than 3 times the government safety limit of 300 becquerels per liter. Water sampled in Tamura city last Thursday contained 348 becquerels of iodine, but the level was down to 161 becquerels 2 days later. Water from 4 other cities in the prefecture had iodine levels above the 100-becquerel per liter safety limit for infants as of Monday.
Tokyo Electric Power Co. said Wednesday it has observed a neutron beam, a kind of radioactive ray, 13 times on the premises of the Fukushima Daiichi nuclear plant after it was crippled by the massive March 11 quake-tsunami disaster. TEPCO, the operator of the nuclear plant, said the neutron beam measured about 1.5 kilometers southwest of the plant's No. 1 and 2 reactors over three days from March 13 and is equivalent to 0.01 to 0.02 microsieverts per hour and that this is not a dangerous level. The utility firm said it will measure uranium and plutonium, which could emit a neutron beam, as well.
Tokyo Electric Power Co. said Wednesday it has observed a neutron beam, a kind of radioactive ray, 13 times on the premises of the Fukushima Daiichi nuclear plant after it was crippled by the massive March 11 quake-tsunami disaster.
TEPCO, the operator of the nuclear plant, said the neutron beam measured about 1.5 kilometers southwest of the plant's No. 1 and 2 reactors over three days from March 13 and is equivalent to 0.01 to 0.02 microsieverts per hour and that this is not a dangerous level.
The utility firm said it will measure uranium and plutonium, which could emit a neutron beam, as well.
In the 1999 criticality accident at a nuclear fuel processing plant run by JCO Co. in Tokaimura, Ibaraki Prefecture, uranium broke apart continually in nuclear fission, causing a massive amount of neutron beams. In the latest case at the Fukushima Daiichi nuclear plant, such a criticality accident has yet to happen. But the measured neutron beam may be evidence that uranium and plutonium leaked from the plant's nuclear reactors and spent nuclear fuels have discharged a small amount of neutron beams through nuclear fission.
In the latest case at the Fukushima Daiichi nuclear plant, such a criticality accident has yet to happen.
But the measured neutron beam may be evidence that uranium and plutonium leaked from the plant's nuclear reactors and spent nuclear fuels have discharged a small amount of neutron beams through nuclear fission.
Plus "a neutron beam" is not "a radioactive beam". So, in what may be my last act of "advising", I'll advise you to cut the jargon. -- My old PhD advisor, to me, 26/2/11
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