This article reports on the first demonstration of in situ , real-time dosimetry realized with an enhanced backscattering optical fiber, and a high-resolution reflectometry measurement. work is devised to overcome current problems monitoring radiotherapy treatments, particular, difficult evaluation not only actual X-ray dose that accumulated target volume but also distribution profile ionizing ...

due to high speed computer networks, the use of digitally formatted data has increased many folds.the digital data can be duplicated and edited with great ease which has led to a need for effectivecopyright protection tools. digital watermarking is a technology of embedding watermark withintellectual property rights into images, videos, audios and other multimedia data by a certainalgorithm .di...