Researchers invent novel ingestible capsule X-ray dosimeter for real-time radiotherapy monitoring NUSingapore natBME
. Power detected by the sensor versus angle of rotation of the capsule around the y-axis for a 50 kV or 6 MV beam., Schematic of the polyaniline synthesis. In a typical procedure, aniline liquid and ammonium persulfate were added to hydrochloric acid, followed by the addition of a PDMS substrate to the solution., Normalized transmission spectra of the pH-sensing film at various pH levels, with emission ranging from 300 nm to 800 nm.
To extend battery life, the system is designed to include a sleep state, a Bluetooth state, and a work state, with the Bluetooth chip in the sleep state the majority of the time. Power consumption in each state was 6.3 μW , 660 μW , and 9.57 mW ., Photographs of the printed circuit boards. The circuit, which has a thickness of 200 μm and a diameter of 7 mm, is easily assembled and fits well into a standard size 2 capsule., Thermal images of the circuit board after various times of operation.
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