Research on X-ray-based energy conversion technology and assessment of application prospect

A new type of wireless energy transfer (radiation energy to electricity) power system is proposed for small-scale distributed energy utilization. To utilize radiation energy efficiently, energy conversion technologies based on different conversion modules and dissimilar material combination schemes are used. A variety of schemes such as single photovoltaic cell and single/multilayer fluorescent layer integrated with photovoltaic cell are designed. The maximum power density ranges from 7.93 nW/cm3 (tube voltage: 30 kV, tube current: 1 mA) to 6.7 mu W/cm3 (tube voltage: 110 kV, tube current: 1 mA). After the structure layout of the system is matched and optimized, the maximum output power in radio-luminescent mode can be much higher than that in radio-voltaic mode. In particular, the maximum output power of conversion modules with a stacked layer can be increased by more than 36 times in radio-luminescent mode compared to radio-voltaic mode. At the same time, the effect of the distance of wireless energy transfer on the output performance of the energy conversion module is analyzed. To adjust the radiation intensity and field parameters better, X-ray tube is used as the radiation excitation source for performance testing and analysis. The performance attenuation of different energy conversion modules is similar when responding to X-ray over long distances. Compared with the radio-voltaic mode, the findings of this paper show that the output power of the system based on the radio-luminescent mode can be an order of magnitude higher.