Curved crystal imaging is an important means of plasma diagnosis.Due to the short wavelengths of high-energy X rays and the fixed lattice constant of the spherical crystal,it is difficult to apply the spherical crysta...Curved crystal imaging is an important means of plasma diagnosis.Due to the short wavelengths of high-energy X rays and the fixed lattice constant of the spherical crystal,it is difficult to apply the spherical crystal in high-energy X-ray imaging.In this study,we have developed a high-energy,high-resolution X-ray imager based on a toroidal crystal that can effectively correct astigmatism.We prepared a Ge<511>toroidal crystal for backlighting Mo Kα1 characteristic lines(∼17.48 keV)and verified its high-resolution imaging ability in high-energy X-ray region,achieving a spatial resolution of 5–10μm in a field of view larger than 1.0 mm.展开更多
The measurement of X-ray continuous emission from laser-driven plasma was achieved through multiple monochromatic imaging utilizing a multilayer mirror array.This methodology was exemplified by the development of an e...The measurement of X-ray continuous emission from laser-driven plasma was achieved through multiple monochromatic imaging utilizing a multilayer mirror array.This methodology was exemplified by the development of an eight-channel X-ray imaging system,capable of operating in the energy range of several ke V with a spatial resolution of approximately3 μm.By integrating this system with a streak camera,the temperature and trajectory of imploding capsules were successfully measured at the kJ-class Shenguang III prototype laser facility.This approach provides a synchronous diagnostic method for the spatial,temporal and spectral analysis of laser-driven plasma,characterized by its high efficiency and resolution.展开更多
基金supported by the National Key Research and Development Program of China(No.2019YFE03080200)the National Natural Science Foundation of China(Nos.11875202 and 11875048).
文摘Curved crystal imaging is an important means of plasma diagnosis.Due to the short wavelengths of high-energy X rays and the fixed lattice constant of the spherical crystal,it is difficult to apply the spherical crystal in high-energy X-ray imaging.In this study,we have developed a high-energy,high-resolution X-ray imager based on a toroidal crystal that can effectively correct astigmatism.We prepared a Ge<511>toroidal crystal for backlighting Mo Kα1 characteristic lines(∼17.48 keV)and verified its high-resolution imaging ability in high-energy X-ray region,achieving a spatial resolution of 5–10μm in a field of view larger than 1.0 mm.
基金supported by the National Key Research and Development Program(Grant No.2019YFE03080200)the National Natural Science Foundation of China(Grant No.12204353)。
文摘The measurement of X-ray continuous emission from laser-driven plasma was achieved through multiple monochromatic imaging utilizing a multilayer mirror array.This methodology was exemplified by the development of an eight-channel X-ray imaging system,capable of operating in the energy range of several ke V with a spatial resolution of approximately3 μm.By integrating this system with a streak camera,the temperature and trajectory of imploding capsules were successfully measured at the kJ-class Shenguang III prototype laser facility.This approach provides a synchronous diagnostic method for the spatial,temporal and spectral analysis of laser-driven plasma,characterized by its high efficiency and resolution.
