Vertical Collimation - Video Lesson

For this exercise, we're gonna be discussing vertical collimation and how much dose it'll save if you're able to collimate a little bit. So if you look at the setup, we got going here now. We actually have an old film holder, you know, that you would actually put put the films in, and, we have a nail taped every inch all the way across, as you can see here. And then we have the ion chamber. It's exactly twenty four inches away from the center of the patient, and it's at the height of mid coronal. And what we're gonna do is we're gonna just, do a ten second exposure the way it's collimated right now, but you can see there's just a little bit of collimation just so that we're perfectly on that first nail. And then, so each one will be exactly an inch and then another inch and another inch. I'll be making ten second exposures. So when I do it, I have the foot pedal as far away