IPAC2011 - List of Authors (Tanabe, E.)

Paper	Title	Page
THPS065	Upgraded X-band 950 KeV Linac X-ray Source for On-site Inspection at Petrochemical Complex	3574
	M. Jin, K. Demachi, K. Dobashi, H.F. Jin, T. Natsui, M. Uesaka The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan J. Kusano, N. Nakamura, M. Yamamoto Accuthera Inc., Kawasaki, Kanagawa, Japan E. Tanabe AET, Kawasaki-City, Japan
	Abstract―Our portable X-band (9.3GHz) 950KeV linac has been successfully upgraded. The problems of RF power oscillation, beam current oscillation and reduction and finally lack of X-ray intensity were solved by replacing the axial coupling cavities with the side-coupled ones. Designed X-ray dose rate of 0.05 Sv/min@1m is going to be achieved. Length of the accelerating tube is reduced to less than 25 cm. X-ray source part with the local radiation shielding is connected by the flexible waveguide with the box of the 300 kW　magnetron and cooling unit. The total system consists of the three suit-case-size units, the last of which is one for the electric power supply. Even on-line dynamic transmission imaging is available by using the high intensity X-ray camera. Demonstration of the measurement of wall thinning of metal pipes with thick thermal shielding is under way. Updated measurement results will be presented. KEYWORDS: portable X-band linac X-ray source, on-site high energy X-ray inspection, petrochemical complex

Paper

Title

Page

Upgraded X-band 950 KeV Linac X-ray Source for On-site Inspection at Petrochemical Complex

3574

M. Jin, K. Demachi, K. Dobashi, H.F. Jin, T. Natsui, M. Uesaka
The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan
J. Kusano, N. Nakamura, M. Yamamoto
Accuthera Inc., Kawasaki, Kanagawa, Japan
E. Tanabe
AET, Kawasaki-City, Japan

Abstract―Our portable X-band (9.3GHz) 950KeV linac has been successfully upgraded. The problems of RF power oscillation, beam current oscillation and reduction and finally lack of X-ray intensity were solved by replacing the axial coupling cavities with the side-coupled ones. Designed X-ray dose rate of 0.05 Sv/min@1m is going to be achieved. Length of the accelerating tube is reduced to less than 25 cm. X-ray source part with the local radiation shielding is connected by the flexible waveguide with the box of the 300 kW　magnetron and cooling unit. The total system consists of the three suit-case-size units, the last of which is one for the electric power supply. Even on-line dynamic transmission imaging is available by using the high intensity X-ray camera. Demonstration of the measurement of wall thinning of metal pipes with thick thermal shielding is under way. Updated measurement results will be presented. KEYWORDS: portable X-band linac X-ray source, on-site high energy X-ray inspection, petrochemical complex