Tag Archives: digital radiography

How Low Can You Go?

This is how I teach ALARA (As Low As Reasonably Achievable) to all of my students and whenever I give any kind of talk on digital radiography techniques to students or techs.  It’s all about using the smallest/lowest mAs possible so that the dose is as low as it can

Optimum kV for DR & CR Equipment

As soon as the film-screen combination was developed in our profession, there has been optimum kVs used for every body part.  Even when Rare Earth screens came on the market in the early 80’s and the mAs was cut to one third (from 9 to 3 for example) the kV

The Trouble with Post Processing “Collimation”

Post processing “collimation”, shuttering or cropping seemed to be one of the greatest features of digital radiography.  With our first CR unit we were taking badly collimated chest x-rays and then with a couple of mouse and key strokes turning in images that looked like we were the best collimating