Demonstrating Attenuation - Video Lesson

For this exercise, we want to discuss how much radiation is attenuated and exits the body. Now when we want to figure out an entrance dose, All we have to do is take our phantom, put the ion chamber on the front, make an exposure, and it gives us a readout, and that's our, you know, entrance dose. When we want to know an exit dose, it's sort of the opposite. You just put it on the backside, make the exposure, and there's your exit dose. But when we wanna know any kind of a dose inside the body, that's a different story. What we would love to have is one of those phantoms where it actually has compartments that the ion chamber would fit into, and you can slide it in, but we don't have one of those fannoms. So we made one of our own And what we ended up using was those blocks of polyethylene that we have, and then just a bunch of bags of saline water. So there were five hundred cc sailing