13 December 1995

In the final episode, Legasov, testifying as a witness, tells a Soviet court that the disaster happened because the tips of the control rods were made of graphite, which sped up the reaction, when the control rod was supposed to slow it down.

On 26 April 1986, Dyatlov supervised a test at Reactor 4 of the nuclear plant, which resulted in the worst nuclear plant accident in history. During the accident, Dyatlov was exposed to a radiation dose of 390 rem (3.9 Sv), which causes death in 50% of affected persons after 30 days, but he survived.

Nikolai Fomin was a member of the CPSU, but was expelled after the Chernobyl disaster. He started his career at the Zaporizhzhia Nuclear Power Plant. While in prison, Fomin received psychiatric treatment several times. For health reasons, he was released from prison early and transferred to a psychiatric hospital.

Perevozchenko

The three other reactors remained operational after the accident but were eventually shut down by 2000, although the plant remains in the process of decommissioning as of 2021….

Akimov worked with his crew in the reactor building after he learned the extent of the accident. I don’t understand why it happened.” Akimov eventually succumbed to acute radiation syndrome two weeks after the disaster at the age of 33.

The sarcophagus locked in 200 tons of radioactive lava-like corium, 30 tons of highly contaminated dust and 16 tons of uranium and plutonium. By 1996 the structure had deteriorated to the point where numerous stabilization measures were required.

Most of the direct victims are buried at the Mitino cemetery in Moscow. Each body is sealed in a concrete coffin, because of its high radiation. Although the power plant is named after the small town of Chernobyl, a new town was built much closer to the power plant; the town of Pripyat.

Discovered in December that year, it is presently located in a maintenance corridor underneath the remains of Reactor No. 4. It remains an extremely radioactive object; however, its danger has decreased over time due to the decay of its radioactive components.

The process will involve vacuuming radioactive particles and clearing out the “lava” mixture that formed when Soviet workers dumped sand, lead, and boron into the burning reactor. These efforts are expected to last through 2065.

On April 26, 1986, a sudden surge of power during a reactor systems test destroyed Unit 4 of the nuclear power station at Chernobyl, Ukraine, in the former Soviet Union. The sand was to stop the fire and additional releases of radioactive material; the boron was to prevent additional nuclear reactions.

The high levels of radiation made it immensely dangerous for humans to carry out work on the sarcophagus and robots were used for joining and welding where possible. The extreme conditions made it impossible to completely seal the seams of the sarcophagus.

A sarcophagus is a stone coffin or a container to hold a coffin. Although early sarcophagi were made to hold coffins within, the term has come to refer to any stone coffin that is placed above ground.