| 摘要 |
Disclosed is a betatron (1), particularly in an x-ray inspection station, comprising an accelerator block that is provided with a rotationally symmet rical inner yoke composed of two spaced-apart pieces (2a, 2b), at least one main field coil (6a, 6b), and a toroidal betatron tube (5) which is disposed between the pieces (2a, 2b) of the inner yoke. The betatron (1) further com prises an outer yoke (4) which embraces the accelerator block, connects the two pieces (2a, 2b) of the inner yoke, and has at least one lateral opening, as well as a lead shield that accommodates the accelerator block and the ou ter yoke. The outer yoke is composed of at least two parts which are movable relative to one another between an open and a closed position. The accelera tor block can be laterally removed from the opening of the outer yoke that i s in the open position.
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