This experiment is part 3 in my series on lead aprons and will show that the average lead apron we use to protect ourselves and our patient’s are supposed to protect against scatter radiation only. You will quickly see why these aprons should never be put in a primary beam.
This experiment will be the second in a series about lead aprons. As you may recall from the last Significant Experiment; there was never a point that the .25 was better than the .375 or that the .375 was better than the .5. But the ion chamber was placed less
A few years ago I was in charge of choosing and purchasing the lead aprons used in our radiology department. We had one main vendor we used so I contacted them about getting a bunch of front sided and wrap around aprons as well as half shields of different sizes.
For quite a while I’ve heard about techs in some states who actually hold the IR for exposures, especially on cross table work. All I can say about this is: DON”T DO IT – EVER!!! The radiation dose you’ll get holding the IR is extreme. Obviously the more mAs that’s used the more scatter that’s created.
Back in March I wrote a blog about grid cut-off in the digital world. It explained things, but in a 1 page article there wasn’t room to put in the images and photos needed to really prove the points I was making. Here I have all the space I need
A while back I started to wonder about how much dose actually occurred in the middle of the body (the Midline Dose). My good old trusty FLUKE dosimeter and 150cc ion chamber could easily tell me the entrance and exit doses but I couldn’t figure out a way to get
This whole project began when we tried to prove if a patient should be shielded in the front or the back for a PA chest x-ray. I decided to test this out using an 8×10 CR cassette that I would run at 1200 speed, making it extremely sensitive to any
Without a phantom it is almost impossible to see how easy it is to over-radiate a patient and still have a perfect (or at least very passable) image. I have now been able to use my skull phantom on nine different manufacturers to discover how much mAs can be used
Recently I attended a lecture where an educator’s student had held a CR cassette in front of his chest (he was wearing a full lead apron) while he made an exposure during a PCXR. Although he was a good 10 feet from the patient, the bones in his hand were