Chemical Printing, Chemicals, Explosives, Optical Standards, Surface Deposition
Accurately collected and validated signatures are critical for evaluating the performance of existing sensors and predicting the performance of future detection capabilities. An assortment of reference materials is also needed to allow the requisite flexibility to react to the diverse and evolving range of threats encountered. Therefore, the development and adoption of standardized methods for the evaluation of stand-off optical systems for explosive and chemical detection is needed. Existing preparation methods of reference samples, such as drop-and-dry (drop casting) methods, present a range of variability and reproducibility issues, including inhomogeneous sample coverage and material waste. Drop-on-demand and inkjet printing technology has become a promising method of producing standardized chemically contaminated test materials with high precision, accuracy, scalability, and flexibility to allow for the inexpensive, high-throughput production.
This Task Group (TG) is continuation of the work from the NATO SET-ET-092 on “Inkjet Printed Standards for Optical Measurements”.