Development of Phantom Radiology Using Eggshells Powder as Bone Genu Material

Eggshells have never been used to create phantoms as bone substitutes so far. Eggshells are easy to find and commonly thrown into the waste bin. The phantom is very important in the field of radiological engineering, especially for practicums on campus to avoid X-ray radiation. The price of a phantom sold in the market is hundreds of millions. This study aims to make a Phantom using eggshell powder as a basic material for bones, especially genu, and to calculate the optical density values in bones made from eggshell powder. The main advantage of this research is that it uses a simple method and easy to find the basic materials so that the manufacturing costs are lower. By using eggshell powder, it is expected to produce Phantom products that are comparable in structure to those made in factories. The method used in this research is an experiment. Provide a comparison between the main material and the companion material; they are 1:1, 1:2, and 1:3. After the experiment is carried out, it is printed based on the appropriate comparison. The result obtained was the 1:1 ratio of the ingredients to be stronger and dry faster than the ratio of 1:2 and 1:3. The optical density value of the radiograph obtained was 0.2. Based on the references value, 0.2 on the bone radiograph included in the bright or radiopaque interval. The radiographs obtained did not show the trabecular structure. So that for the further research it is necessary to add additional materials to replace trabecular.