Category Archives: Significant Experiments

How much scatter is created from an AP chest x-ray?

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…

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How much can you over-radiate and still get a perfect image?

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…

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Off-Focus Radiation

This whole project began when we tried to prove if a patient should be shielded in the front or the back for a PA…

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Entrance, Midline and Exit Doses

A while back I started to wonder about how much dose actually occurred in the middle of the body (the Midline Dose).  My good…

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Grid Cut-Off with DR & CR

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…

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Radiation Dose You Get When Holding the IR for a Swimmers Exposure

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…

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The Difference in Lead Apron Thickness

A few years ago I was in charge of choosing and purchasing the lead aprons used in our radiology department. We had one main…

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Comparison of .25 and .5mm Lead Aprons & 90 and 60 degrees of Scattered 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…

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Lead Aprons are for Scatter Radiation Only

This experiment is part 3 in my series on lead aprons and will show that the average lead apron we use to protect ourselves…

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