The "TEUFEL" undulator

J.W.J. Verschuur; G.J. Ernst; W.J. Witteman

doi:10.1016/0168-9002(92)91173-7

The "TEUFEL" undulator

J.W.J. Verschuur, G.J. Ernst, W.J. Witteman

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Abstract

An overview of the design of the undulator for the Twente free electron laser is presented. The undulator is of the planar hybrid type, i.e. alternating permanent magnetic material and poles. The overall design is based on the method of Halbach. The flux balance is set up for the three-dimensional fluxes which are derived from the two-dimensional calculations. The undulator, using magnetic materials Sm1Co5 and 2V-permendur, has a wavelength of 25 mm, K value of 1, and a betatron wavelength (at equal focusing) of 300 mm for an electron beam of 6 MeV. An optimization is performed on a circular shape of the pole faces. The entrance and exit are tapered to allow a straight passage of the electron beam through the undulator. The tapering is adjusted to the requirements of minimal steering and displacement of the electron beam.

Original language	English
Pages (from-to)	AB585-AB586
Number of pages	2
Journal	Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment
Volume	358
Issue number	1-3
DOIs	https://doi.org/10.1016/0168-9002(92)91173-7
Publication status	Published - 1995
Event	16th International Free Electron Laser Conference, FEL 1994 - Stanford, United States Duration: 22 Aug 1994 → 26 Aug 1994 Conference number: 16

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abstract = "An overview of the design of the undulator for the Twente free electron laser is presented. The undulator is of the planar hybrid type, i.e. alternating permanent magnetic material and poles. The overall design is based on the method of Halbach. The flux balance is set up for the three-dimensional fluxes which are derived from the two-dimensional calculations. The undulator, using magnetic materials Sm1Co5 and 2V-permendur, has a wavelength of 25 mm, K value of 1, and a betatron wavelength (at equal focusing) of 300 mm for an electron beam of 6 MeV. An optimization is performed on a circular shape of the pole faces. The entrance and exit are tapered to allow a straight passage of the electron beam through the undulator. The tapering is adjusted to the requirements of minimal steering and displacement of the electron beam.",

author = "J.W.J. Verschuur and G.J. Ernst and W.J. Witteman",

year = "1995",

doi = "10.1016/0168-9002(92)91173-7",

language = "English",

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journal = "Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment",

issn = "0168-9002",

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number = "1-3",

note = "16th International Free Electron Laser Conference, FEL 1994, FEL ; Conference date: 22-08-1994 Through 26-08-1994",

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T1 - The "TEUFEL" undulator

AU - Verschuur, J.W.J.

AU - Ernst, G.J.

AU - Witteman, W.J.

N1 - Conference code: 16

PY - 1995

Y1 - 1995

N2 - An overview of the design of the undulator for the Twente free electron laser is presented. The undulator is of the planar hybrid type, i.e. alternating permanent magnetic material and poles. The overall design is based on the method of Halbach. The flux balance is set up for the three-dimensional fluxes which are derived from the two-dimensional calculations. The undulator, using magnetic materials Sm1Co5 and 2V-permendur, has a wavelength of 25 mm, K value of 1, and a betatron wavelength (at equal focusing) of 300 mm for an electron beam of 6 MeV. An optimization is performed on a circular shape of the pole faces. The entrance and exit are tapered to allow a straight passage of the electron beam through the undulator. The tapering is adjusted to the requirements of minimal steering and displacement of the electron beam.

AB - An overview of the design of the undulator for the Twente free electron laser is presented. The undulator is of the planar hybrid type, i.e. alternating permanent magnetic material and poles. The overall design is based on the method of Halbach. The flux balance is set up for the three-dimensional fluxes which are derived from the two-dimensional calculations. The undulator, using magnetic materials Sm1Co5 and 2V-permendur, has a wavelength of 25 mm, K value of 1, and a betatron wavelength (at equal focusing) of 300 mm for an electron beam of 6 MeV. An optimization is performed on a circular shape of the pole faces. The entrance and exit are tapered to allow a straight passage of the electron beam through the undulator. The tapering is adjusted to the requirements of minimal steering and displacement of the electron beam.

U2 - 10.1016/0168-9002(92)91173-7

DO - 10.1016/0168-9002(92)91173-7

M3 - Article

VL - 358

SP - AB585-AB586

JO - Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment

JF - Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment

SN - 0168-9002

IS - 1-3

T2 - 16th International Free Electron Laser Conference, FEL 1994

Y2 - 22 August 1994 through 26 August 1994

ER -

The "TEUFEL" undulator

Abstract

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