| When placed in a harsh environment, electrical circuits can sometimes have a protective epoxy coating. The addition of micro/nanoparticle dopants can have certain effects on the coating. In particular, dopants can have certain effects on the reaction of certain signals, such as x-ray radiation and ultrasonic waves. The effects of different sizes and types of dopants are discussed and were tested by exploring the image resolution of both x-ray and ultrasonic imagers. Three materials were used as dopants: tungsten, bismuth, and tin. Two different geometries were also tested: particulate (spherical) and wires. Using Effective Dopant Thickness, the tests discussed in this thesis will also work towards optimizing the thickness and weight of the coating. A low cost x-ray detector was also created and tested to embed into the epoxy coating. The detector is made of two materials to form an indirect x-ray detector. |
