Leonid Toptunov

Leonid F. Toptunov
Леонід Федорович Топтунов
Born	16 August 1960 Mykolaivka, Buryn Raion, Sumy Oblast, Ukrainian SSR, Soviet Union
Died	14 May 1986 (aged 25) Moscow, Russian SFSR, Soviet Union
Cause of death	Acute radiation syndrome
Nationality	Soviet Union
Other names	Леонид Фёдорович Топтунов (in Russian)
Alma mater	National Research Nuclear University MEPhI (at Obninsk)
Awards	Order For Courage

Leonid Fedorovych Toptunov (Ukrainian: Леонід Федорович Топтунов, Russian: Леонид Фёдорович Топтунов; 16 August 1960 – 14 May 1986) was a Soviet electrical engineer who was the senior reactor control chief engineer at the Chernobyl Nuclear Power Plant Reactor Unit 4 on the night of the Chernobyl disaster, 26 April 1986.^[1]