FEL options for the proposed UK fourth generation light source (4GLS)

M.W. Poole, B.W.J. McNeil

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

4GLS is a novel low-energy light source proposed as a complementary facility to the DIAMOND X-ray project for the UK, and could probably replace the present SRS at Daresbury in about 6 years time. This facility will use a combination of three separate FELs, undulators and bending magnets to provide a unique source of high-brightness continuous and pulsed radiation from the IR to XUV (~100 eV). Here, we give a brief description of the proposed FELs in the IR and VUV followed by a pre-design parameter study of the more technically challenging XUV high-gain FEL. The electron beam source for this FEL is a 600MeV superconducting energy recovery linac with peak currents of a few kA, normalised rms emittance ~3 pi mm-mrad and rms energy spread ∼5×10-4. Computer simulations using the 3-D FEL code GENESIS 1.3 are used to investigate a feasible undulator and beam focussing scheme, allowing estimates for achievable radiation power and saturation length to be made.

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Free electron lasers
Light sources
light sources
Wigglers
pulsed radiation
emittance
high gain
continuous radiation
energy
brightness
magnets
Radiation
computerized simulation
recovery
electron beams
saturation
Magnets
radiation
estimates
Luminance

Keywords

  • free electron laser
  • energy recovery linac
  • fourth generation light source

Cite this

@article{810f613cf520413dbcdbdb7ca7ab982c,
title = "FEL options for the proposed UK fourth generation light source (4GLS)",
abstract = "4GLS is a novel low-energy light source proposed as a complementary facility to the DIAMOND X-ray project for the UK, and could probably replace the present SRS at Daresbury in about 6 years time. This facility will use a combination of three separate FELs, undulators and bending magnets to provide a unique source of high-brightness continuous and pulsed radiation from the IR to XUV (~100 eV). Here, we give a brief description of the proposed FELs in the IR and VUV followed by a pre-design parameter study of the more technically challenging XUV high-gain FEL. The electron beam source for this FEL is a 600MeV superconducting energy recovery linac with peak currents of a few kA, normalised rms emittance ~3 pi mm-mrad and rms energy spread ∼5×10-4. Computer simulations using the 3-D FEL code GENESIS 1.3 are used to investigate a feasible undulator and beam focussing scheme, allowing estimates for achievable radiation power and saturation length to be made.",
keywords = "free electron laser, energy recovery linac, fourth generation light source",
author = "M.W. Poole and B.W.J. McNeil",
year = "2003",
month = "7",
day = "11",
doi = "10.1016/S0168-9002(03)00902-1",
language = "English",
volume = "507",
pages = "489--493",
journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
number = "1-2",

}

TY - JOUR

T1 - FEL options for the proposed UK fourth generation light source (4GLS)

AU - Poole, M.W.

AU - McNeil, B.W.J.

PY - 2003/7/11

Y1 - 2003/7/11

N2 - 4GLS is a novel low-energy light source proposed as a complementary facility to the DIAMOND X-ray project for the UK, and could probably replace the present SRS at Daresbury in about 6 years time. This facility will use a combination of three separate FELs, undulators and bending magnets to provide a unique source of high-brightness continuous and pulsed radiation from the IR to XUV (~100 eV). Here, we give a brief description of the proposed FELs in the IR and VUV followed by a pre-design parameter study of the more technically challenging XUV high-gain FEL. The electron beam source for this FEL is a 600MeV superconducting energy recovery linac with peak currents of a few kA, normalised rms emittance ~3 pi mm-mrad and rms energy spread ∼5×10-4. Computer simulations using the 3-D FEL code GENESIS 1.3 are used to investigate a feasible undulator and beam focussing scheme, allowing estimates for achievable radiation power and saturation length to be made.

AB - 4GLS is a novel low-energy light source proposed as a complementary facility to the DIAMOND X-ray project for the UK, and could probably replace the present SRS at Daresbury in about 6 years time. This facility will use a combination of three separate FELs, undulators and bending magnets to provide a unique source of high-brightness continuous and pulsed radiation from the IR to XUV (~100 eV). Here, we give a brief description of the proposed FELs in the IR and VUV followed by a pre-design parameter study of the more technically challenging XUV high-gain FEL. The electron beam source for this FEL is a 600MeV superconducting energy recovery linac with peak currents of a few kA, normalised rms emittance ~3 pi mm-mrad and rms energy spread ∼5×10-4. Computer simulations using the 3-D FEL code GENESIS 1.3 are used to investigate a feasible undulator and beam focussing scheme, allowing estimates for achievable radiation power and saturation length to be made.

KW - free electron laser

KW - energy recovery linac

KW - fourth generation light source

UR - http://www.sciencedirect.com/science/journal/01689002

U2 - 10.1016/S0168-9002(03)00902-1

DO - 10.1016/S0168-9002(03)00902-1

M3 - Article

VL - 507

SP - 489

EP - 493

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

T2 - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

IS - 1-2

ER -