论文部分内容阅读
日本核泄漏将成为历史上最严重的事故之一2011年3月11日,日本于当地时间11日14时46分发生里氏9.0级地震。震中位于宫城县以东太平洋海域,震源深度20公里。3月11日本本州岛海域地震后,福岛第一核电站传出反应堆停止运转的消息,由于反应堆冷却系统停止运作,燃料有露出水面发生“堆芯融化”的危险,当局不得不向反应堆注入海水,并排出蒸汽。该核电站1号机组在当地时间12日下午3点36分发生疑似冷却用氢气爆炸,造成反应堆附近机房墙体严重受损,4人受伤。不过幸运的是,反应堆金属外壳安然无恙。据悉,核反应堆内核裂变可能产生放射性碘。一旦发生核泄漏,放射性碘可能被核电站附近的居民吸入,引发甲状腺疾病,包括甲状腺癌。
Japan's nuclear leak will become one of the worst accidents in history On March 11, 2011, Japan suffered a magnitude 9.0 earthquake at 14:46 on the 11th. The epicenter is located in the Pacific Ocean east of Miyagi Prefecture, with a focal depth of 20 km. After the March 11 earthquake off the Honshu Island, a message came out from the reactor at Fukushima Daiichi NPP that due to the shutdown of the reactor cooling system and the risk of fuel “core melting” on the surface of the water, the authorities had to send a message to the reactor Inject seawater and vent steam. The unit 1 of this nuclear power station exploded with suspected hydrogen gas explosion at 3:36 PM on the 12th of the local time, causing serious damage to the engine room wall near the reactor and wounding 4 people. Fortunately, however, the metal shell of the reactor was safe and sound. It is reported that nuclear fission within the nuclear reactor may produce radioactive iodine. In the event of a nuclear leak, radioactive iodine may be inhaled by inhabitants near nuclear plants, triggering thyroid diseases, including thyroid cancer.