Founded by Joel E. Gray, Ph.D., DIQUAD is dedicated to improving image quality and film processing in dentistry while lowering patient  dose.   Dr. Gray is a medical physicist with 20-years experience in clinical medical imaging at Mayo Clinic (Rochester, Minnesota).   In addition, he has worked as a consultant to industry and healthcare organizations, and for Lorad (where he helped to develop  the Selenia full-field digital mammography system) and Landauer, the world's leading provider of dosimetry services.

DIQUAD can also provide other support and for your practice including consulting and educational materials.  All of our services are available in the United States as well as worldwide.   We maintain a database of all data collected and an archive of all Analyzer™ films.  This database provides the ability to develop statistics, including histograms, showing where your practice stands relative to your colleagues and competitors.