On June 2003, JART established Roentgen week from November 2 to 8th, this is not only celebrates 100th Anniversary of X-ray discovery by Dr. Roentgen but to promote people’s conscious toward health. During the week, JART will organize anniversary events in Tokyo and each local technologist group will organize various events and lectures and tour to radiological section at the hospital to offer an opportunity to consider about healthiness.