LINAC2014 - List of Keywords (brightness)

Paper	Title	Other Keywords	Page
THPP093	Combined System of Optical Inspection and Local Grinder	cavity, injection, controls, superconducting-cavity	1065
	Y. Iwashita Kyoto ICR, Uji, Kyoto, Japan H. Hayano, T. Kubo, K. Watanabe, Y. Yamamoto KEK, Ibaraki, Japan
	Optical inspections on superconducting accelerating tubes have been playing an important role on improving their accelerating gradients. Instead of treatments on whole cavity inner surfaces to eliminate the found defects on the surfaces, the local grinding method succeeds to remove them efficiently. A combined system of the optical inspection and the local Grinding machines are fabricated. The overview of the system will be presented.

THPP102	On Nonlinear Dynamics of a Sheet Electron Beam	emittance, plasma, electron, electronics	1090
	H.Y. Barminova MEPhI, Moscow, Russia
	In collisionless approximation the nonlinear dynamics of a charged particle beam is studied. Nonlinear oscillations of the beam radius appear due to external and self-consistent nonlinear forces. To study such oscillations the model is applied based on the kinetic distribution function dependent on the particle motion integrals. The 4th-order equation for the beam radius is obtained. The numerical solutions of the equation are analyzed. The cases of strong and weak nonlinearities caused by the own beam fields are discussed. In the case of weak deviation of the beam parameters from equilibrium ones the effective emittance growth isn't observed.

Paper

Title

Other Keywords

Page

THPP093

Combined System of Optical Inspection and Local Grinder

cavity, injection, controls, superconducting-cavity

1065

Y. Iwashita
Kyoto ICR, Uji, Kyoto, Japan
H. Hayano, T. Kubo, K. Watanabe, Y. Yamamoto
KEK, Ibaraki, Japan

Optical inspections on superconducting accelerating tubes have been playing an important role on improving their accelerating gradients. Instead of treatments on whole cavity inner surfaces to eliminate the found defects on the surfaces, the local grinding method succeeds to remove them efficiently. A combined system of the optical inspection and the local Grinding machines are fabricated. The overview of the system will be presented.

THPP102

On Nonlinear Dynamics of a Sheet Electron Beam

emittance, plasma, electron, electronics

1090

H.Y. Barminova
MEPhI, Moscow, Russia

In collisionless approximation the nonlinear dynamics of a charged particle beam is studied. Nonlinear oscillations of the beam radius appear due to external and self-consistent nonlinear forces. To study such oscillations the model is applied based on the kinetic distribution function dependent on the particle motion integrals. The 4th-order equation for the beam radius is obtained. The numerical solutions of the equation are analyzed. The cases of strong and weak nonlinearities caused by the own beam fields are discussed. In the case of weak deviation of the beam parameters from equilibrium ones the effective emittance growth isn't observed.