High-field strong-focusing undulator designs for X-ray Linac Coherent Light Source (LCLS) applications

Author

Caspi, S. ; Schlueter, R. ; Tatchyn, R.

Author_Institution

Lawrence Berkeley Lab., CA, USA

Volume

3

fYear

1995

fDate

1-5 May 1995

Firstpage

1441

Abstract

Linac-driven X-ray Free Electron Lasers (e.g., Linac Coherent Light Sources (LCLSs)), operating on the principle of single-pass saturation in the Self-Amplified Spontaneous Emission (SASE) regime typically require multi-GeV beam energies and undulator lengths in excess of tens of meters to attain sufficient gain in the 1Å-0.1Å range. In this parameter regime, the undulator structure must provide: (1) field amplitudes B₀ in excess of 1T within periods of 4 cm or less, (2) peak on-axis focusing gradients on the order of 30 T/m, and (3) field quality in the 0.1%-0.3% range. In this paper we report on designs under consideration for a 4.5-1.5 Å LCLS based on superconducting (SC), hybrid/PM, and pulsed-Cu technologies

Keywords

electron accelerators; electron beam focusing; free electron lasers; wigglers; LCLS; Self-Amplified Spontaneous Emission; X-ray Linac Coherent Light Source; beam energies; field amplitudes; high-field strong-focusing undulator; hybrid/PM; linac-driven X-ray Free Electron Lasers; peak on-axis focusing gradients; pulsed-Cu technologies; single-pass saturation; superconducting; undulator lengths; Copper; Electron beams; Light sources; Linear particle accelerator; Magnets; Protection; Safety; Superconducting cables; Undulators; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505249

Filename

505249