The goal of this lesson is to introduce you to the technique factors that affect exposure.  It also goes over geometric aspects that may affect image quality.

Please read pages 36-46 of your textbook before continuing.  Some topics covered will be covered in the second part of Principles of Exposure,but it's a good idea to at least be exposed to it now.  There is a Technique Factor worksheet, Distortion worksheet, and a "quiz" in this module.  A calculator will most likely be needed to complete the quiz. 

Again, please don't worry if you don't immediately grasp some aspects of Principles of Exposure.  We will get through it!  The reason why I'm allowing you to resubmit worksheets and retake quizzes is because my ultimate goal is that you understand everything by the END of the course, meaning December.  As we go, things will start to tie together and make more sense.  These 3 separate courses you are enrolled in is really just one BIG course.  Please feel free to contact me with any questions you may have. 


In the image below, take a good look at exactly what x-ray images really are.  It's really just a bunch of blacks, whites and grays.  A balance of mAs (quantity of x-rays) and kVp (quality of x-rays) allow us to see this image.  Think of mAs as controlling the blackness of this image.  kVp controls the grayness of the image.  More on this in the next few pages...

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