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Toptunov, along with non-essential personnel, was dismissed. He left the control room but decided to return out of a sense of responsibility. He worked with Akimov to manually open water valves in an attempt to increase water supply to the reactor, during which time they began to experience symptoms
297:
He was admitted to
Pripyat Hospital but was quickly transferred to Moscow Hospital 6. By 28 April, the symptoms of radiation sickness had mostly subsided. He sent a letter to his parents and left a note on where to find him in Moscow. His parents visited him in the hospital. Although he could walk,
313:
found that the reactor design and how the operators were informed of safety information were more significant. However, the operators were found to have deviated from operational procedures, changing test protocols on the fly, and having made "ill judged" actions, making human factors a major
274:, as well as design flaws in the reactor unknown to the operators. Dyatlov ordered Toptunov and Akimov to raise the power to 700 MW. Withdrawing a dangerous number of control rods, the operators could only reach 200 MW due to xenon poisoning. During the test, Akimov called for the AZ-5 (
298:
his parents could see he had strange skin damage. During his stay, he discussed possible causes of the accident with Akimov and
Dyatlov, but they were mystified. His parents once asked about the cause, but he only could say they had followed regulations. Toptunov and Akimov received
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ordered the power to be reduced to 700 MW, as the test plan stipulated. However, the reactor stalled unexpectedly during test preparations, dropping to a low 30 MW. Raising power after this point put the reactor into a potentially dangerous state, due to
250:, that control rods may, in certain circumstances, accelerate rather than slow the reaction. He worked as a unit control engineer and senior reactor control engineer. Throughout his position at Chernobyl, Toptunov befriended
261:. Toptunov only had two months' experience in operating the reactor, and this was his first shutdown as operator. The operators attempted to perform a rundown test before scheduled routine maintenance, during which
278:) button to be pressed to shut down the reactor, and Toptunov operated the button. Due to a design flaw, the descending control rods momentarily accelerated the nuclear reaction and caused the reactor to explode.
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In March 1983, Toptunov began his career at the
Chernobyl Nuclear Power Plant. During his studies of the reactor documentation, he mentioned to his friend,
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in attempt to restore their immune systems. He died from acute radiation poisoning on 14 May 1986 and was laid to rest at the
254:, the two would become good friends, go fishing etc. Toptunov always desired an older brother, and Akimov provided just that.
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While the initial Soviet investigation put almost all the blame on the operators and management, later findings by the
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in Moscow. His family was informed that his death was the only reason he was not prosecuted for the accident.
286:. They were found by other workers and taken to the infirmary. During the accident, he was exposed to a fatal
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On the night of 26 April 1986, Leonid
Toptunov worked in the control room at the reactor control panel, with
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515:"Surviving Disaster" Chernobyl Nuclear Disaster (TV Episode 2006)
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State
Institution for Radiation Monitoring and Radiation Safety
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In 2008, Toptunov was posthumously awarded with the 3rd degree
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468:: The Untold Story of the World's Greatest Nuclear Disaster
419:: The Untold Story of the World's Greatest Nuclear Disaster
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Leonid
Toptunov was born on 16 August 1960 in Mykolaivka,
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He was portrayed by actor
Volodya Stepanenko in the 2004
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Obninsk
Institute for Nuclear Power Engineering alumni
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INSAG-7 The
Chernobyl Accident: Updating of INSAG-1
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582:Comparison with other radioactivity releases
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162:National Research Nuclear University MEPhI
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942:Children of Chernobyl Benefit Concert
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435:Higginbotham, A. (2019). pages 75-88
374:Deaths due to the Chernobyl disaster
421:. London: Bantam Press. pages 50-55
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207:Reactor Unit 4 on the night of the
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1178:Deaths by acute radiation syndrome
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999:2022 Russian capture of Chernobyl
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935:Chernobyl Children International
972:Friends of Chernobyl's Children
339:TV series. He was portrayed by
230:In 1983, he graduated from the
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205:Chernobyl Nuclear Power Plant
21:Eastern Slavic naming customs
348:: Chernobyl Nuclear Disaster
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343:in the 2006 BBC production
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185:Leonid Fedorovych Toptunov
19:In this name that follows
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16:Soviet electrical engineer
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1080:National Chernobyl Museum
1027:Chernobyl: The Lost Tapes
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894:Energetik cultural palace
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617:Groundwater contamination
589:Comparison with Fukushima
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463:Higginbotham, A. (2019).
414:Higginbotham, A. (2019).
201:Леонид Фёдорович Топтунов
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193:Леонід Федорович Топтунов
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146:Леонид Фёдорович Топтунов
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55:Леонід Федорович Топтунов
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753:Chernihiv–Ovruch railway
284:acute radiation syndrome
125:Acute radiation syndrome
1148:People from Sumy Oblast
470:. London: Bantam Press.
300:bone marrow transplants
965:Chernobyl Shelter Fund
1168:Chernobyl liquidators
1036:Chernobyl liquidators
466:Midnight in Chernobyl
417:Midnight in Chernobyl
314:contributing factor.
102:14 May 1986 (aged 25)
1064:New Safe Confinement
871:Azure swimming pool
486:, 1992, pages 22-25
395:"Герои-ликвидаторы"
236:nuclear power plant
121:Cause of death
1043:Chernobyl necklace
721:Leonid Telyatnikov
693:Vassili Nesterenko
565:Chernobyl disaster
346:Surviving Disaster
304:Mitinskoe Cemetery
265:. In preparation,
263:reactor 4 exploded
209:Chernobyl disaster
46:Leonid F. Toptunov
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1019:(2019 miniseries)
714:Nikolai Tarakanov
665:Valery Khodemchuk
501:zakon.rada.gov.ua
328:Viktor Yushchenko
324:Order For Courage
211:, 26 April 1986.
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177:Order For Courage
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31: and the
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354:in the 2019
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151:(in Russian)
135:Soviet Union
114:Soviet Union
110:Russian SFSR
92:Soviet Union
78:Mykolaivka,
36:
28:
1143:1986 deaths
1138:1960 births
1057:Sarcophagus
1009:(2021 film)
885:FC Stroitel
848:Dzernavichy
767:power plant
635:Individuals
358:miniseries
352:Robert Emms
318:Recognition
248:Sasha Korol
225:Sumy Oblast
221:Buryn Raion
131:Nationality
84:Sumy Oblast
80:Buryn Raion
33:family name
1132:Categories
797:Red Forest
380:References
215:Early life
29:Fedorovych
25:patronymic
1017:Chernobyl
917:Slavutych
783:Opachychi
760:Chernobyl
738:Locations
361:Chernobyl
336:Zero Hour
242:Chernobyl
189:Ukrainian
1101:Category
1073:Samosely
841:Aravichy
368:See also
37:Toptunov
857:Pripyat
790:Poliske
776:Kopachi
573:Effects
350:and by
197:Russian
166:Obninsk
1030:(2022)
818:Vilcha
804:Tarasy
603:Deaths
522:
173:Awards
106:Moscow
23:, the
825:Yaniv
276:scram
1115:List
520:IMDb
311:IAEA
164:(at
99:Died
72:Born
518:at
356:HBO
326:by
292:rem
282:of
35:is
27:is
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187:(
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39:.
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