Calibration of the linear response range of x-ray imaging plates and their reader based on image grayscale values.

X-rayimaging plates are one of the most important X-rayimaging detectors and are widely used in inertial-confinement fusionexperiments. However, their linear response range, which is the foundation of their quantitative data analysis, has not been sufficiently deeply investigated. In this work, we develop an X-rayfluorescer calibration system and carefully explore the linear response range of X-rayimaging plates. For the first time, nearly the entire grayscalerange of the X-rayimaging plate linear response—7819–64 879 in the range of 0–65 535—has been observed. Further, we discuss the uncertainties involved in the calibration process. This work demonstrates the excellent linear response qualities of X-rayimaging plates and provides a significant foundation for expanding their quantitative applied range.