Predesign Study of a 4-5 tesla Superconducting Wiggler Magnet for the ESRF

H.H.J. ten Kate; D. ter Avest; A. Ravex; M. Lagnier; P. Elleaume

doi:10.1109/20.305796

Predesign Study of a 4-5 tesla Superconducting Wiggler Magnet for the ESRF

H.H.J. ten Kate, D. ter Avest, A. Ravex, M. Lagnier, P. Elleaume

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Abstract

The ESRF is currently setting up a beam line for very hard photons well above 250 keV. This requires the installation of a high field three polewavelength shifter. The nominal and target fields of the wiggler magnet are 4 and 5 tesla respectively while the nominal field integral over the central pole is 0.256 T-m at 4 T. The proposed magnet is a system of superconducting main and two side pole coils connected in series. An additional superconducting correction coil system enables to tune the field integral. The coils, made of high performing NbTi, are enclosed and prestressed in an aluminium coil housing. About 15% field enhancement, shielding and force balancing is achieved with two iron plates sandwiching the coil housing. The cooling concept is a cryostat with a closed helium re-condensation system. Cooling is provided by a mechanical hybrid GM and JT refrigerator with a cooling capacity of about 2.5 W at 4.4 K. The paper reports on the design concepts and optimisations and a preferred solution is presented

Original language	English
Pages (from-to)	2543-2546
Number of pages	4
Journal	IEEE transactions on magnetics
Volume	30
Issue number	4
DOIs	https://doi.org/10.1109/20.305796
Publication status	Published - 1994
Event	13th International Conference on Magnet Technology, MT-13 1993 - Victoria, Canada Duration: 20 Sept 1993 → 24 Sept 1993 Conference number: 13

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Predesign Study of a 4-5 Tesla Superconducting Wiggler Magnet for the ESRF
ten Kate, H. H. J., ter Avest, D., Ravex, A., Lagnier, M. & Elleaume, P., 21 Sept 1993.
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title = "Predesign Study of a 4-5 tesla Superconducting Wiggler Magnet for the ESRF",

abstract = "The ESRF is currently setting up a beam line for very hard photons well above 250 keV. This requires the installation of a high field three polewavelength shifter. The nominal and target fields of the wiggler magnet are 4 and 5 tesla respectively while the nominal field integral over the central pole is 0.256 T-m at 4 T. The proposed magnet is a system of superconducting main and two side pole coils connected in series. An additional superconducting correction coil system enables to tune the field integral. The coils, made of high performing NbTi, are enclosed and prestressed in an aluminium coil housing. About 15% field enhancement, shielding and force balancing is achieved with two iron plates sandwiching the coil housing. The cooling concept is a cryostat with a closed helium re-condensation system. Cooling is provided by a mechanical hybrid GM and JT refrigerator with a cooling capacity of about 2.5 W at 4.4 K. The paper reports on the design concepts and optimisations and a preferred solution is presented",

author = "{ten Kate}, H.H.J. and {ter Avest}, D. and A. Ravex and M. Lagnier and P. Elleaume",

year = "1994",

doi = "10.1109/20.305796",

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journal = "IEEE transactions on magnetics",

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AU - ten Kate, H.H.J.

AU - ter Avest, D.

AU - Ravex, A.

AU - Lagnier, M.

AU - Elleaume, P.

N1 - Conference code: 13

PY - 1994

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N2 - The ESRF is currently setting up a beam line for very hard photons well above 250 keV. This requires the installation of a high field three polewavelength shifter. The nominal and target fields of the wiggler magnet are 4 and 5 tesla respectively while the nominal field integral over the central pole is 0.256 T-m at 4 T. The proposed magnet is a system of superconducting main and two side pole coils connected in series. An additional superconducting correction coil system enables to tune the field integral. The coils, made of high performing NbTi, are enclosed and prestressed in an aluminium coil housing. About 15% field enhancement, shielding and force balancing is achieved with two iron plates sandwiching the coil housing. The cooling concept is a cryostat with a closed helium re-condensation system. Cooling is provided by a mechanical hybrid GM and JT refrigerator with a cooling capacity of about 2.5 W at 4.4 K. The paper reports on the design concepts and optimisations and a preferred solution is presented

AB - The ESRF is currently setting up a beam line for very hard photons well above 250 keV. This requires the installation of a high field three polewavelength shifter. The nominal and target fields of the wiggler magnet are 4 and 5 tesla respectively while the nominal field integral over the central pole is 0.256 T-m at 4 T. The proposed magnet is a system of superconducting main and two side pole coils connected in series. An additional superconducting correction coil system enables to tune the field integral. The coils, made of high performing NbTi, are enclosed and prestressed in an aluminium coil housing. About 15% field enhancement, shielding and force balancing is achieved with two iron plates sandwiching the coil housing. The cooling concept is a cryostat with a closed helium re-condensation system. Cooling is provided by a mechanical hybrid GM and JT refrigerator with a cooling capacity of about 2.5 W at 4.4 K. The paper reports on the design concepts and optimisations and a preferred solution is presented

U2 - 10.1109/20.305796

DO - 10.1109/20.305796

M3 - Article

SN - 0018-9464

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JO - IEEE transactions on magnetics

JF - IEEE transactions on magnetics

IS - 4

T2 - 13th International Conference on Magnet Technology, MT-13 1993

Y2 - 20 September 1993 through 24 September 1993

ER -

Predesign Study of a 4-5 tesla Superconducting Wiggler Magnet for the ESRF

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Predesign Study of a 4-5 Tesla Superconducting Wiggler Magnet for the ESRF

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