SBIR-STTR Award

This program is organized to demonstrate the feasibility of a nonsilver x-ray process to eliminate the need for special chemicals and a daylight developing machine for army field dental application. This process will be compatible with current x-ray equipment. The important objectives of phase i are to investigate and demonstrate that an x-ray picture using existing x-ray equipment, no chemicals processing is necessary, insensitivity to light

The objective of phase ii research will be optimization of the processes developed during phase i, development of an improved thermal processor, specifically for the new material, production of materials on a sample basis and specifications for processes to be used for future production. The proposed research is expected to result in a highly attractive alternative to silver halide with major advantages, especially for field applications. The objective of phase i research was to prove the feasibility of a process to produce a new, non-silver, dry process material to replace silver halide film for x-ray radiographs, using high yield photodissociation of choline chloride. Over twenty compositions were designed. Three of these gave the best results. The results were highly encouraging. Good high contrast, black images were obtained with sensitivities superior to silver halide films without screen. The resultant emulsions are not sensitive to visible light and require only heat development without chemicals of any kind.