00:01
So in this question, we have some source that's emitting ionizing radiation.
00:07
And we first want to know what the heck is this ionizing radiation.
00:12
So ionizing radiation is kind of a catch -all term in radiation physics.
00:20
And basically, it just means any emission from a radioactive source, from a radioactive source that can, ionize and ionize or dislodge is a word that i like to think about instead an electron from an atom or molecule so if we think about this with a picture basically our ionizing radiation comes in and let's say we have an atom here with this being its nucleus and then it has a bunch of electrons kind of swarming around.
01:37
And afterwards, what happens is our nucleus stays the same.
01:49
And most of our electrons are still there, but we now have one electron that's been knocked out by this ionizing radiation.
02:02
And so ionizing radiation comes in many forms.
02:07
We can have alpha particles, which are basically helium -4 atoms that are knocked out of our radiation source.
02:29
We can have beta particles, which are just electrons, or we can also have so -called gamma particles, but when we say gamma particles, we really just mean light waves.
02:52
And so to see what kind of radiation we're looking at, what we could do is set up a bunch of different screens to determine the differences.
03:09
And so there's certain things.
03:11
And we can also really quickly can have neutrons, which are just, we can have neutrons emitted...