Temperature measurement of Ta, Al and Cu target stricken by strong electron beam

The electron beam generated by the Dragon-Ⅰlinear induction accelerator struck the target, and an instantaneous optic pyrometer with six working wavelengths was used to measure the temperature process of beam-target interaction region. The thicknesses of targets were 0.1-0.25 mm. Temperature processes of tantalum, aluminum and copper target stricken by strong electron beam were acquired. The highest temperature was up to approximately 9000 K, it reached the region of warm dense matter. The experiment results show that the observable warm dense matter can be acquired by means of the electron beam generated by the Dragon-Ⅰlinear induction accelerator striking specifical targets, and the instantaneous optic pyrometer with multi-working wavelengths is an effective instrument for measuring temperature of the warm dense matter.