CERN Accelerating science

Article
Title	High Brightness Electron Gun for X-Ray Source
Author(s)	Ohsawa, Satoshi ; Hozumi, Yasufumi ; Ikeda, Mitsuo ; Kanno, K ; Sugimura, Takashi ; Tawada, Masafumi
Affiliation	(AET Japan, Inc., Kawasaki-City) ; (GUAS/AS, Ibaraki) ; (KEK, Ibaraki)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1488
Subject category	Accelerators and Storage Rings
Abstract	A new electron-gun system is under development in order to increase X-ray from a rotating target. In commercial X-ray sources electron beams usually hit targets at the outer part. Owing to deformation by centrifugal force, there has been a limit on electron beam intensities. In order to overcome this difficulty, we adopted a new injection system which strikes inside of a ring-shape projection on a rotating target. It has an advantage in that heated-up points have supports back side against centrifugal force. This merit allows us to raise electron beam to give stronger X-rays.