Abstract
Temperature of X-ray tube is very high in operation. Therefore, information of detailed temperature distribution is indispensable for developing of the new X-ray tube. This study is conducted to obtain the detailed temperature distribution on the basis of the unsteady numerical analysis. Temperature near the target center became nearly 2000K immediately after the input. Maximum temperature with intensity distribution at the target was about 2310K. The maximum temperature was about 20% higher than uniform input case for target. Temperature gradient was steep near the target, and temperature was about 700K at a distance of 1 mm from the target center.
