Author/Authors :
Uesaka، نويسنده , , Mitsuru and Natsui، نويسنده , , Takuya and Lee، نويسنده , , Kiwoo and Dobashi، نويسنده , , Katsuhiro and Yamamoto، نويسنده , , Tomohiko and Fujiwara، نويسنده , , Takeshi and Zhu، نويسنده , , Haito and Demachi، نويسنده , , Kazuyuki and Tanabe، نويسنده , , Eiji and Yamamoto، نويسنده , , Masashi and Nakamura، نويسنده , , Naoki and Kusano، نويسنده , , Joichi and Higo، نويسنده , , Toshiyasu an، نويسنده ,
Abstract :
We are developing compact X-band linac X-ray sources for nondestructive evaluation and medicine. First, we develop a portable X-ray system by a 950 keV 9.4 GHz X-band linac to realize on-site inspection. We use a low power (250 kW) magnetron as an RF source for compactness of the whole system. Since the RF power source is quite small and the stored energy in the structure is also small, we faced the problem of beam loading and current/RF-power oscillation. We are analyzing the problem by the circuit model. We plan to use this system for erosion inspection of metal pipes of petrochemical complex. By adopting a side-coupling cavity design to avoid the oscillation, we have developed 6 MeV X-band (9.3 GHz) linac for pinpoint dynamic tracking cancer therapy. Furthermore, we are manufacturing 3.95 MeV X-band (9.3 GHz) linac X-ray source with flexible waveguides for on-site bridge inspection. Updated results and situations are presented.
Keywords :
X-band linac , Portable X-ray source , On-site inspection , bridge inspection , petrochemical complex , Pinpoint cancer therapy
