RUPAC2012 - List of Authors (Plastun, A.S.)

Paper	Title	Page
TUPPB010	RF Quadrupole Focusing Lattices	331
	A.S. Plastun, T.V. Bondarenko MEPhI, Moscow, Russia
	Spatial homogeneity of a conventional RFQ allows to estimate parameters of the lattice easily. Hybrid-RFQ structures with spatially periodic RFQ lenses are more complicated in respect of beam dynamics. Transverse stability of beam motion is defined by lattice parameters. Basically parameters of RF focusing lattices are influenced by longitudinal emittance of a bunch in contrast to static focusing lattices. The paper presents a method which allows to evaluate parameters of a very wide class of RF and static quadrupole lattices. Transverse acceptance and acceleration rate could be determined. The method is useful to compare Hybrid-RFQ structures with a conventional RFQ.

WEPPC013	Novel DTL Section for ITEP-TWAC Heavy Ion Injector	469
	V. Andreev, N.N. Alexeev, A. Kolomiets, V.A. Koshelev ITEP, Moscow, Russia A.S. Plastun MEPhI, Moscow, Russia
	A novel 81.5 MHz H-type drift tube (DTL) accelerating structure with rf quadrupoles following RFQ in the new injector I-4 for acceleration ions up to energy about 5 MeV/u for ITEP TWAC facility has been proposed. It is based on a combination of a DTL structure and the resonator with magnetic coupling windows. Computer simulations show that it can provide some advantages in comparison with conventional IH-DTL structure. Results of both electrodynamics and beam dynamics computer simulations of the structure as well as a new approach for beam matching RFQ and the section are presented.

Paper

Title

Page

RF Quadrupole Focusing Lattices

331

A.S. Plastun, T.V. Bondarenko
MEPhI, Moscow, Russia

Spatial homogeneity of a conventional RFQ allows to estimate parameters of the lattice easily. Hybrid-RFQ structures with spatially periodic RFQ lenses are more complicated in respect of beam dynamics. Transverse stability of beam motion is defined by lattice parameters. Basically parameters of RF focusing lattices are influenced by longitudinal emittance of a bunch in contrast to static focusing lattices. The paper presents a method which allows to evaluate parameters of a very wide class of RF and static quadrupole lattices. Transverse acceptance and acceleration rate could be determined. The method is useful to compare Hybrid-RFQ structures with a conventional RFQ.

WEPPC013

Novel DTL Section for ITEP-TWAC Heavy Ion Injector

469

V. Andreev, N.N. Alexeev, A. Kolomiets, V.A. Koshelev
ITEP, Moscow, Russia
A.S. Plastun
MEPhI, Moscow, Russia

A novel 81.5 MHz H-type drift tube (DTL) accelerating structure with rf quadrupoles following RFQ in the new injector I-4 for acceleration ions up to energy about 5 MeV/u for ITEP TWAC facility has been proposed. It is based on a combination of a DTL structure and the resonator with magnetic coupling windows. Computer simulations show that it can provide some advantages in comparison with conventional IH-DTL structure. Results of both electrodynamics and beam dynamics computer simulations of the structure as well as a new approach for beam matching RFQ and the section are presented.