In order to develop new materials that have desired properties, it is essential to evaluate the materials under
various atmospheric environments. The infrared heating high-temperature attachment Reactor X has a
corrosion-resistant sample chamber separated from the heater section, so it can be used to perform
high-temperature XRD measurements under various atmospheres, such as hydrogen, ammonia, high
humidity and so forth. Using Reactor X with a 2D detector capable of high-speed XRD measurement, it is
possible to investigate in detail rapid phase transitions under heating in various atmospheres.