LINAC2012 - List of Authors (Paramonov, V.V.)

Paper

Title

Page

Travelling Wave Accelerating Structures with a Large Phase Advance

363

V.V. Paramonov
RAS/INR, Moscow, Russia

The electrons acceleration is considered in higher pass bands of TM01 wave for disk loaded waveguide, resulting in the possibility of traveling wave accelerating structures with an operating field phase advance between 180 – 1260 degrees per cell. With an appropriate shape optimization and some additional elements in cells proposed traveling wave structures have small transverse dimensions and high RF efficiency of standing wave operation. Examples of proposed structures together with RF and dispersion properties are presented.

MOPB082

RF Parameters of the TE - Type Deflecting Structure for S-Band Frequency Range

366

V.V. Paramonov, L.V. Kravchuk
RAS/INR, Moscow, Russia
K. Flöttmann
DESY, Hamburg, Germany

Funding: in part RBFR N 12-02-0654-a
Effective compact deflecting structure* has been proposed for L-band frequency range preferably. RF parameters of this structure considered for S-band frequency range both for traveling and standing wave operation.
* -V. Paramonov, L. Kravchuk, INR, S. Korepanov. Effective Standing Wave RF Structure for Particle Beam Deflector. Proc. 2006 Linac Conference, p. 649

TUPLB02

Deflecting Structures with Minimized Level of Aberrations

445

V.V. Paramonov
RAS/INR, Moscow, Russia

Funding: in part RBFR N 12-02-00654a
Deflecting structures are now widely used for bunch phase space manipulations either in bunch rotation for special bunch diagnostic or in emittance exchange experiments. As a tool for manipulation, the structure itself should provide the minimal phase space perturbations due to non linear additives in the field distribution. Even if the field of synchronous harmonic is aberration free, the higher space harmonics provide significant non linear additives in the field distribution, leading to emittance growth during phase space manipulation. Criterion of the field quality estimation is developed and deflecting structures are considered for minimization of non linear additives. Examples with almost aberration free total field distributions are presented.

Slides TUPLB02 [0.727 MB]

TUPB001

The Fine Structure of the Zone of Particle Interaction with a Finite Length Periodic Structure

473

V.V. Paramonov
RAS/INR, Moscow, Russia

The periodic constant impedance deflecting structures are widely used for a special beam diagnostic in FEL facilities. The method, based on frequency domain approach, was developed to estimate long range wake fields structure parameters in a wide frequency range. It is shown, that regardless to number of cells in the structure, at each passband to the zone of particle effective interaction with the structure belongs several, at least three modes. The usual time domain simulations provide the total estimation for loss factor or kick factor values and modes separation in the time domain approach requires enormous simulations.

TUPB002

Deflecting Structures with Minimized Level of Aberrations

476

V.V. Paramonov
RAS/INR, Moscow, Russia

Funding: in part RBFR N 12-02-00654a
Deflecting structures are now widely used for bunch phase space manipulations either in bunch rotation for special bunch diagnostic or in emittance exchange experiments. As a tool for manipulation, the structure itself should provide the minimal phase space perturbations due to non linear additives in the field distribution. Even if the field of synchronous harmonic is aberration free, the higher space harmonics provide significant non linear additives in the field distribution, leading to emittance growth during phase space manipulation. Criterion of the field quality estimation is developed and deflecting structures are considered for minimization of non linear additives. Examples with almost aberration free total field distributions are presented.

Paper	Title	Page
MOPB081	Travelling Wave Accelerating Structures with a Large Phase Advance	363
	V.V. Paramonov RAS/INR, Moscow, Russia
	The electrons acceleration is considered in higher pass bands of TM01 wave for disk loaded waveguide, resulting in the possibility of traveling wave accelerating structures with an operating field phase advance between 180 – 1260 degrees per cell. With an appropriate shape optimization and some additional elements in cells proposed traveling wave structures have small transverse dimensions and high RF efficiency of standing wave operation. Examples of proposed structures together with RF and dispersion properties are presented.

MOPB082	RF Parameters of the TE - Type Deflecting Structure for S-Band Frequency Range	366
	V.V. Paramonov, L.V. Kravchuk RAS/INR, Moscow, Russia K. Flöttmann DESY, Hamburg, Germany
	Funding: in part RBFR N 12-02-0654-a Effective compact deflecting structure* has been proposed for L-band frequency range preferably. RF parameters of this structure considered for S-band frequency range both for traveling and standing wave operation. * -V. Paramonov, L. Kravchuk, INR, S. Korepanov. Effective Standing Wave RF Structure for Particle Beam Deflector. Proc. 2006 Linac Conference, p. 649

TUPLB02	Deflecting Structures with Minimized Level of Aberrations	445
	V.V. Paramonov RAS/INR, Moscow, Russia
	Funding: in part RBFR N 12-02-00654a Deflecting structures are now widely used for bunch phase space manipulations either in bunch rotation for special bunch diagnostic or in emittance exchange experiments. As a tool for manipulation, the structure itself should provide the minimal phase space perturbations due to non linear additives in the field distribution. Even if the field of synchronous harmonic is aberration free, the higher space harmonics provide significant non linear additives in the field distribution, leading to emittance growth during phase space manipulation. Criterion of the field quality estimation is developed and deflecting structures are considered for minimization of non linear additives. Examples with almost aberration free total field distributions are presented.
	Slides TUPLB02 [0.727 MB]

TUPB001	The Fine Structure of the Zone of Particle Interaction with a Finite Length Periodic Structure	473
	V.V. Paramonov RAS/INR, Moscow, Russia
	The periodic constant impedance deflecting structures are widely used for a special beam diagnostic in FEL facilities. The method, based on frequency domain approach, was developed to estimate long range wake fields structure parameters in a wide frequency range. It is shown, that regardless to number of cells in the structure, at each passband to the zone of particle effective interaction with the structure belongs several, at least three modes. The usual time domain simulations provide the total estimation for loss factor or kick factor values and modes separation in the time domain approach requires enormous simulations.

TUPB002	Deflecting Structures with Minimized Level of Aberrations	476
	V.V. Paramonov RAS/INR, Moscow, Russia
	Funding: in part RBFR N 12-02-00654a Deflecting structures are now widely used for bunch phase space manipulations either in bunch rotation for special bunch diagnostic or in emittance exchange experiments. As a tool for manipulation, the structure itself should provide the minimal phase space perturbations due to non linear additives in the field distribution. Even if the field of synchronous harmonic is aberration free, the higher space harmonics provide significant non linear additives in the field distribution, leading to emittance growth during phase space manipulation. Criterion of the field quality estimation is developed and deflecting structures are considered for minimization of non linear additives. Examples with almost aberration free total field distributions are presented.