u/HauntingEnergy2281

▲ 7 r/chernobyl+1 crossposts

Radiation levels in Pripyat

What were the radiation levels in Pripyat at the time of the accident? I am trying to find archival documents that talk about the radiation levels of the city 10-20 minutes after the accident. The city was only 10-15 miles away from the plant. If you lived in an apartment complex closest to the plant, say 10 miles away, what would be your dose if you were standing outside in the elements after the explosion?

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u/HauntingEnergy2281 — 6 hours ago

Testing procedures

Not really sure if this was ever brought up, but was the testing procedure ever reviewed by a committee before the operators proceeded with actual test. In other words, didn’t either the Kurchatov Institute of Atomic Energy and** **NIKIET ever review that test and sign-off on it? It seems that that would be important for safety reasons.

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u/HauntingEnergy2281 — 26 days ago
▲ 19 r/chernobyl+1 crossposts

Chernobyl’s uranium enrichment process

I am reading “Midnight at Chernobyl,” and the author didn’t really write about how the Soviets designed their reactors. So, I have a few questions: Did nuclear power plants like Chernobyl enrich their own uranium fuel, or was that done somewhere else? If enrichment was done elsewhere, what steps were involved in transporting and preparing the fuel before it reached the reactor?

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u/HauntingEnergy2281 — 27 days ago
▲ 9 r/chernobyl+1 crossposts

Questions about the prior shift and prior tests

Did the prior shift at Chernobyl power down the reactor from 3200MW to 1600MW longer than they should have? When I heard about this in a documentary, I assumed that someone told the operators to delay the test and provide more power to the grid longer than they should have. My uncle, who used to work for a nuclear power plant said that causes a build-up of Xenon-135 (reactor poison) because the burn off rate drops and the iodine-135 from full power will keep decaying into Xenon-135 at the old rate. That create a Xenon pit that’s impossible to get out of without shutting down the reactor completely.

I can’t understand why the prior shift didn’t inform the midnight shift. I don’t understand why the operators had no knowledge of physics to allow the reactor to absorb the neutrons and delay the chain reaction. I also don’t understand the reasons for the test. Apparently, some documentaries state that the operators should have carried out the test before it came online. I don’t understand why the government kept insisting on a pass rate, when they know that no reactor ever successfully passed the test in the first place. Also, shouldn’t this test have been completed prior to Chernobyl? If so, why was this plant ever allowed to open if they never completed this test in the first place?

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u/HauntingEnergy2281 — 1 month ago

Did the government know about the reactor design flaws?

Most documentaries always talk about Soviet Union’s cover-up of RBMK reactor design flaws, but they don’t explain how the commission knew about the positive void coefficient, and how the control rods were tipped with graphite instead of Boron to control a nuclear chain reaction. I assumed that the government knew due to prior nuclear accidents, but I’m not entirely if that’s the case. I don’t know how a Communist system classifies information, as opposed to a democracy.

I ran across some documents about the Kyshtym disaster, and I saw that the KGB ran their own investigation, but these documents show ignorance about nuclear power and reprocessing. I can’t believe a sane government would appoint such people to run industries

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u/HauntingEnergy2281 — 1 month ago

Questions about Chernobyl Units 1, 2 and 3

I know people were working in Chernobyl units 1, 2 and 3 at the time of the accident. I am just wondering if the operators shut Unit 3 their reactor after the second explosion at Unit 4. What did the other units do that night and early morning that day?

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u/HauntingEnergy2281 — 1 month ago