High electric field small-sized standing wave linear accelerator

摘要

Abstract Topic Axial symmetry is made to maintain to distribution of the acceleration electron beam,The small size which features that uniformity of intensity distribution of the te x-ray is obtainedThe standing wave linear accelerator is offered. Solutions Influence is received to acceleration microwave electric field stronglyIn the first boost phase whose electronic speed is slow relatively, addition positiveExtremely 12, the re-entrant cavity 13, the beam aperture 14, aperture 15, 1st acceleration cavity 16, cavity 1The respective structure of 7 by the axis symmetrically constituting,Axial symmetrical acceleration electric field is generated in the field where it is not relatively high speed of the electronIn order to do, be able to obtain axial symmetrical electronic distribution, intensity distribution of the x-rayBecomes uniform. By configurating voltage appropriately, the electronBunching width of axial direction of the group quite to become small, the x-rayWidth of the energy spectrum to become small, characteristic improvementIt is obtained. As for the electron where everything converges almost the 1st acceleratorBecause it is injected in 16, batsukubonbadome of the electronIt to be possible to prevent breaking the cathode of the electron gun by ntoru. As a result, property of high electric field small-sized standing wave linear accelerator largeIt is possible to improve to width.