RuPAC2016 - List of Keywords (beam-loading)

Paper	Title	Other Keywords	Page
TUPSA009	Electron Beam Dynamics Calculation and Accelerating Structure Geometry Design in 10 MeV Hybrid Electron Linac	linac, electron, focusing, coupling	228
	A.V. Bulanov, S.V. Matsievskiy, E.A. Savin, N.P. Sobenin MEPhI, Moscow, Russia
	Electron linear accelerators with an energy of 10 MeV are widely used for industrial purposes. This article presents the electron dynamic calculations and the design of linac with a standing wave (SW) buncher based on the biperiodic accelerating structure and a constant impedance backward traveling wave (BTW) accelerating section after it. In such accelerator, all unused RF power coming out from BTW section is used in SW section to improve the linac efficiency. Thus no RF load is needed. Also, a beam is experiencing an RF focusing in the SW buncher. Solenoid focusing field influence on the beam dynamics in the TW section was studied.
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TUPSA025	First Results of Beam Dynamics Simulation in electron injector linac for FCC-ee	linac, simulation, gun, coupling	264
	S.M. Polozov, T.V. Bondarenko MEPhI, Moscow, Russia
	New high-energy frontier project FCC is now under development at CERN. It is planed that all three modes as ee, hh and eh will be available for FCC. New injection system for FCC-ee is planned to consist of new ~ 2 GeV electron linac and electron-positron converter. Two possible layouts for further beam acceleration are discussed. The high-energy 14 GeV linac is the first layout and the booster synchrotron is the second one. Pre-injector linac design will have two regimes: ~250 pC bunches for injection and ~6 nC bunches for e⁻/e⁺ conversion. In the second case we will have extreme parameters: bunch charge up to 6 nC in 10 ps, up to 10 bunches per pulse and the pulse repetition rate up to 100 Hz. Such beam parameters lead to significant design difficulties caused by very high influence of Coulomb field in the near-cathode region and high peak beam loading. First results of beam dynamics simulation in FCC-ee injection linac and near-cathode dynamics problems are discussed in the report.
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Paper

Title

Other Keywords

Page

TUPSA009

Electron Beam Dynamics Calculation and Accelerating Structure Geometry Design in 10 MeV Hybrid Electron Linac

linac, electron, focusing, coupling

228

A.V. Bulanov, S.V. Matsievskiy, E.A. Savin, N.P. Sobenin
MEPhI, Moscow, Russia

Electron linear accelerators with an energy of 10 MeV are widely used for industrial purposes. This article presents the electron dynamic calculations and the design of linac with a standing wave (SW) buncher based on the biperiodic accelerating structure and a constant impedance backward traveling wave (BTW) accelerating section after it. In such accelerator, all unused RF power coming out from BTW section is used in SW section to improve the linac efficiency. Thus no RF load is needed. Also, a beam is experiencing an RF focusing in the SW buncher. Solenoid focusing field influence on the beam dynamics in the TW section was studied.

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA025

First Results of Beam Dynamics Simulation in electron injector linac for FCC-ee

linac, simulation, gun, coupling

264

S.M. Polozov, T.V. Bondarenko
MEPhI, Moscow, Russia

New high-energy frontier project FCC is now under development at CERN. It is planed that all three modes as ee, hh and eh will be available for FCC. New injection system for FCC-ee is planned to consist of new ~ 2 GeV electron linac and electron-positron converter. Two possible layouts for further beam acceleration are discussed. The high-energy 14 GeV linac is the first layout and the booster synchrotron is the second one. Pre-injector linac design will have two regimes: ~250 pC bunches for injection and ~6 nC bunches for e⁻/e⁺ conversion. In the second case we will have extreme parameters: bunch charge up to 6 nC in 10 ps, up to 10 bunches per pulse and the pulse repetition rate up to 100 Hz. Such beam parameters lead to significant design difficulties caused by very high influence of Coulomb field in the near-cathode region and high peak beam loading. First results of beam dynamics simulation in FCC-ee injection linac and near-cathode dynamics problems are discussed in the report.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)