#Didyouknow... the nuclear energy industry is one of the few industries with a security program that's regulated by the federal government.

The @NRCgov 🇺🇸holds nuclear power plants to the highest security standards of any American industry.
#NuclearPowerPlants are very robust structures that are very difficult to penetrate. The combination of these structures, a well-armed professional security force, strict access controls, & multiple backup safety systems provides layer-upon layer of safety and security.
Security measures are based on three concentric circles, with the level of security increasing as one gets closer to the reactor.

Check it out! 👇 Image
The “owner-controlled area,” is far enough from the reactor that only minimal security is needed. Other than signs, the security measures in place aren't always visible to the public. Image
The “protected area” is fenced and protected by sophisticated security systems and armed security officers.

Also, at this point plant personnel must be determined to be fit for duty before they are allowed into the protected area. 👇 ImageImageImage
The innermost circle is called the “vital area.” It contains the reactor & associated safety systems, the control room, the used fuel pool, and the main security alarm stations.

Access to the vital area is limited and protected by locked and alarmed security doors. ImageImageImage
Have you ever visited a nuclear power plant?

Let me know which one and what was your impression😀👇

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More from @NuclearHazelnut

May 1
Chornobyl (1986) & Fukushima (2011) are very well-known #nuclear disasters… but have you ever heard about Three Mile Island incident?

This coming May 4th many people will be talking about this event (thanks, @netflix), so let’s inform ourselves to know the FACTS about it.
Long story short:

In 1979 at Three Mile Island nuclear power plant in the USA, a cooling malfunction caused part of the core to melt in the #2 reactor. The TMI-2 reactor was destroyed.

Here’s what happened 👇
The Three Mile Island (TMI) Generating Station is a closed nuclear power plant located in Pennsylvania, USA 🇺🇸

It’s composed of 2 pressurized water reactors, TMI-1 & TMI-2, that started generating electricity in 1974 and 1978, respectively.
Read 23 tweets
Apr 6
In movies, a #NuclearReactor is always shown with a shining electric blue haze & we all assume that it’s part of the special effects.

BUT, I've got news for you: It's actually called the Cherenkov Effect & as said by @DE_Nuclear:

Cherenkov Effect is Science, Not Science Fiction
The electric blue haze is a natural phenomenon known as the Cherenkov radiation or Cherenkov Effect.

Let's check out the science behind it👇
As you may already know, the Cherenkov effect can be seen near the reactor & used fuel pools at #NuclearPowerPlants.

The particles concerned by the effect (electrons and positrons) are very light, & they can reach very high speeds causing brief flashes of light. 🤯
Read 9 tweets
Apr 3
We know that #NuclearEnergy is one of the largest sources of zero-emissions power in the 🌎, but as any other energy-generation industry, it generates a "waste".

And I got some news for you: It is actually consider a valuable resource, not a waste!
Say what!? 👀

Don’t worry, the 🇺🇸 @GovNuclear published:
“5 Fast Facts About #SpentNuclearFuel

Let’s read it and keep learning together:
1.#NuclearWaste is an incorrect term for used or spent fuel (Let’s all take note! - myself included)📝

#UsedFuel is made up of metal fuel rods that contains small ceramic pellets of enriched U-235 & it always stay in a solid state.
Read 8 tweets
Mar 30
Do you know how many bananas you need to eat to die of radiation? 😱

That's right, you can die of radiation by eating 🍌. But don't worry! I don’t actually think anyone would dare to do it.

So, here is a guide on: What to know before you go bananas about #NuclearRadiation?
In 2017 the @UofCalifornia read our minds by answering a question that we all have:

How much #radiation is too much radiation? And well, the answer is more simple than we thought 👉it’s just a bunch of bananas.
But first, we need to get familiar and understand some terms. Are you ready?

Everything is composed of atoms (Yep, the periodic table). Some of these atoms are unstable & decay or break apart, & when this happens it emits what we call #Radiation.
Read 10 tweets
Mar 29
Check out this great question by @CleanEnRev !

Have you ever wonder how is spent fuel transported?
Let's find out 👇
First of all, fuel assemblies remain submerged during all handling operations. The minimum shielding requirement is ~3m of water for a high burn-up, & they use special cranes for handling operations

Check out one of the main differences between #BWRs and #PWRs spent fuel pools👇
BWR pools are filled with demineralized water, and PWR pools are normally filled with a dilute (~0.2M) boric acid solution💧

The role of boric acid in nuclear power plant is basically to control nuclear fission rate (among other uses)

Check out these 2 cross-section pics👇 ImageImage
Read 5 tweets
Mar 25
Can you throw #NuclearWaste in the trash can?🗑

Will you become The Hulk if you are exposed to its #radiation?🧟‍♀️

Do you actually know what happens with nuclear waste?

Come! Let’s find out 👇

Spoiler alert: It doesn’t glow green like you see in some movies.
Before we get into crazy nuclear terms, let’s identify the types of #NuclearWaste:
 
High-Level: Most of the #NuclearWaste- the ‘scary’ one

Intermediate-L: Components, medical & lab items- 🏥 also generate this waste

Low-L: Tools, clothes-Hospitals, research facilities, NPP too
Ready for the action? Now we need to get something straight:

#Radiation?Moving energy. It’s a natural process

So, #Radioactivity refers to an atom losing energy by emitting particles capable of removing electrons from other atoms ⚠️Could be hazardous
 
We’ll discuss this later*
Read 12 tweets

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