Leonid Fedorovych Toptunov (Ukrainian: Леонід Федорович Топтунов, Russian: Леонид Фёдорович Топтунов; 16 August 1960 – 14 May 1986) was a Soviet nuclear engineer who was the senior reactor control chief engineer at the Chernobyl Nuclear Power Plant Reactor Unit 4 on the night of the Chernobyl ...

In response, Toptunov reduced the power setpoint to stabilize the automatic regulators' ionization sensors. The result was a sudden power drop to an unintended near-shutdown state, with a power output of 30 MW thermal or less.

In the early hours of April 26, 1986, Leonid Toptunov, a young, inexperienced and tired member of the night crew at the Chernobyl nuclear power station, near Kiev, allowed the level of reactivity in one of the plant' s reactors to fall to a dangerously low level during a test to determine how long the turbines would continue to provide power ...

2019年4月26日 · Vera Toptunova, the mother of Leonid Toptunov, who was a senior reactor control engineer at the Reactor No. 4 of the Chernobyl nuclear plant when it exploded on April 26, 1986, mourns over his ...

Dyatlov ordered Toptunov and Akimov to raise the power to the requisite level for the test, a task made perilous by xenon poisoning and reactor design flaws unknown to the operators. Withdrawing a dangerous number of control rods, the operators could only reach 200 MW due to xenon poisoning.

2023年7月6日 · Leonid Toptunov was a graduate of the prestigious Moscow Engineering and Physics Institute and was just 25 years old when he was given the job of senior reactor controller at Chernobyl. On the night of April 25th, he had only been a senior operator for two months and had never manned the reactor through a shutdown test like the one he was to ...

2019年4月26日 · That same day, one of the members of the plant staff, 25-year-old Leonid Toptunov, the nuclear engineer manning the control desk of reactor number four at the moment of the explosion, sent a telegram from his room in the specialized radiological Hospital No. 6 in Moscow, to his mother in Estonia.

Leonid Fedorovych Toptunov (Ukrainian: Леонід Федорович Топтунов; 16 August 1960 – 14 May 1986) was a Soviet engineer who was the senior reactor control chief engineer at the Chernobyl Nuclear Power Plant Reactor Unit 4 on the night of …

Leonid Fedorovych Toptunov was born on the 16 August 1960. He was a Senior Engineer at the Chernobyl Power plant and had this position for 3 months. He graduated from the Moscow Engineering Physics Institute in 1983. He died on the May 14 1986 and his resting place is Mitinskoe Cemetery.

2019年6月12日 · In the hours after the explosion, he spoke to Oleksandr Akimov, the shift leader at the No. 4 reactor, and operator Leonid Toptunov, who both feature prominently in the series.