67
submitted 2 weeks ago by [email protected] to c/[email protected]
you are viewing a single comment's thread
view the rest of the comments
[-] [email protected] 8 points 2 weeks ago

Do the parts of a reactor become radioactive because of bombardment with ionizing electromagnetic waves, or because of bombardment with particles from the reaction that become embedded in them building up over time?

[-] [email protected] 9 points 2 weeks ago

Several reasons. Outside of the reactor core itself, almost all items that “become” radioactive are just contaminated with radioactive waste. The item itself hasn’t turned radioactive, it’s just covered in radioactive particles that are usually very difficult to remove.

However, when you expose something to very high levels of neutron radiation (like you would find in a reactor core), it is possible to turn the atoms of the item itself radioactive. This is known as “activating”, and it’s how we produce many types of radiopharmaceutical drugs and other research isotopes. The amount of neutrons required to do this are basically nonexistent outside of nuclear reactors and particle accelerators, so it’s usually not a concern.

Source: my job is to put things into a nuclear reactor and turn them radioactive.

this post was submitted on 07 Jul 2025
67 points (91.4% liked)

Facepalm

3335 readers
35 users here now

founded 2 years ago
MODERATORS