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Polymers nanocomposites as a shielding material in medical radiology- Highlights Recent advances in polymer engineering show that polymer (nano) composites can be designed to be lead-free in addition to being lightweight, conformable, cost effective, and potentially capable of significantly attenuating X-rays. Nanomaterials have unique material properties that can be exploited to develop novel lead-free radiation-protection materials. The attenuation properties of the (nano)composites are characterized using diagnostic X-ray energies and can be compared to the attenuation characteristics of pure lead sheets. Polymer composites can be tailored to requirements of the customer.
Potential applications of the SPARK PLASMA SINTERING techniques in the field of biomedical engineering - Highlights The Spark Plasma Sintering presents promising way for tailoring overall properties of biomedical materials. Using this technique there is unlimited spectrum of metals, ceramics, plastics, composites etc. which could be shaped and sintered. Even sintering of scaffold structures by using pressureless configuration is possible. This gives designers’ and engineers’ relatively easy way to improve properties of current replacements and other biomedical parts, which could enhance the patients live after operation.
ELECTROCHEMICAL AND PHOTOVOLTAIC
Research and development of both Electrochemical and Photovoltaic power sources with the aim to increase their efficiency, reliability and lifetime. Development and optimization of diagnostic methods for quality assessment of photovoltaic cells, panels and systems. Deposition and characterization of the physical properties of Transparent Conducting Oxides (TCO ), in particular , ZnO, Al and amorphous hydrogenated silicon. TCO thin film deposition is performed by using PVD apparatus and BOC Edwards TF600 RF magnetron sputtering. Experimental methods for monitoring properties, in particular the X-ray diffraction, UV- VIS spectroscopy and scanning electron microscopy.
STATE OF THE ART RADIATION IMAGING DETECTOR
The hybrid semiconductor pixel detector provides radiation imaging or radiation monitoring capability in superior quality. The device is single particle sensitive recording that position and optionally also energy or time of each ionizing particle interacting with sensor. The detector consists of matrix of 256 x 256 pixels with 55 µm pitch. The fully digital technology provides noiseless particle registration (counting). The pixels register ionizing particles or photons depositing in the sensor energy higher than certain configurable threshold (minimum threshold is 3-6 keV depending on sensor type). The signal caused by each particle is processed individually. Thus the camera doesn’t suffer noise or dark current. Each detector pixel can be individually configured to register either number of particles or their energy or arrival time. The maximum detectable fluency is 3,000,000 particles per second in each pixel resulting in 200, 000,000,000 particles per second in entire detector.