Cored Rutherford cables for the GSI fast ramping synchrotron

M.N. Wilson; A.K. Ghosh; Bernard ten Haken; W.V. Hassenzahl; J. Kaugerts; G. Moritz; C. Muehle; A. den Ouden; R. Soika; P. Wanderer; Wilhelm A.J. Wessel

doi:10.1109/TASC.2003.812864

Cored Rutherford cables for the GSI fast ramping synchrotron

M.N. Wilson, A.K. Ghosh, Bernard ten Haken, W.V. Hassenzahl, J. Kaugerts, G. Moritz, C. Muehle, A. den Ouden, R. Soika, P. Wanderer, Wilhelm A.J. Wessel

Faculty of Science and Technology

Research output: Contribution to journal › Article › Academic › peer-review

18 Citations (Scopus)

44 Downloads (Pure)

Abstract

The new heavy ion synchrotron facility proposed by GSI will have two superconducting magnet rings in the same tunnel, with rigidities of 200 T/spl middot/m and 100 T/spl middot/m. Fast ramp times are needed, which can cause significant problems for the magnets, particularly in the areas of ac loss and field distortion. This paper discusses the 200 T/spl middot/m ring, which will use Cos/spl theta/ magnets based on the RHIC dipole design. We discuss the reasons for choosing Rutherford cable with a resistive core and report loss measurements carried out on cable samples. These measurements are compared with theoretical calculations using measured values of inter-strand resistance. Reasonably good agreement is found, but there are indications of nonuniformity in the adjacent resistance R/sub a/. Using these measured parameters, losses and temperature rise are calculated for a RHIC dipole in the operating cycle of the accelerator. A novel insulation scheme designed to promote efficient cooling is described.

Original language	Undefined
Pages (from-to)	1704-1709
Number of pages	6
Journal	IEEE transactions on applied superconductivity
Volume	13
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2003.812864
Publication status	Published - 2003

Keywords

IR-59840
METIS-212823

Cite this

Wilson, M. N., Ghosh, A. K., ten Haken, B., Hassenzahl, W. V., Kaugerts, J., Moritz, G., ... Wessel, W. A. J. (2003). Cored Rutherford cables for the GSI fast ramping synchrotron. IEEE transactions on applied superconductivity, 13(2), 1704-1709. https://doi.org/10.1109/TASC.2003.812864

@article{6ca3e54e19274d52af321bec27a363d4,

title = "Cored Rutherford cables for the GSI fast ramping synchrotron",

abstract = "The new heavy ion synchrotron facility proposed by GSI will have two superconducting magnet rings in the same tunnel, with rigidities of 200 T/spl middot/m and 100 T/spl middot/m. Fast ramp times are needed, which can cause significant problems for the magnets, particularly in the areas of ac loss and field distortion. This paper discusses the 200 T/spl middot/m ring, which will use Cos/spl theta/ magnets based on the RHIC dipole design. We discuss the reasons for choosing Rutherford cable with a resistive core and report loss measurements carried out on cable samples. These measurements are compared with theoretical calculations using measured values of inter-strand resistance. Reasonably good agreement is found, but there are indications of nonuniformity in the adjacent resistance R/sub a/. Using these measured parameters, losses and temperature rise are calculated for a RHIC dipole in the operating cycle of the accelerator. A novel insulation scheme designed to promote efficient cooling is described.",

keywords = "IR-59840, METIS-212823",

author = "M.N. Wilson and A.K. Ghosh and {ten Haken}, Bernard and W.V. Hassenzahl and J. Kaugerts and G. Moritz and C. Muehle and {den Ouden}, A. and R. Soika and P. Wanderer and Wessel, {Wilhelm A.J.}",

year = "2003",

doi = "10.1109/TASC.2003.812864",

language = "Undefined",

volume = "13",

pages = "1704--1709",

journal = "IEEE transactions on applied superconductivity",

issn = "1051-8223",

publisher = "IEEE",

number = "2",

}

Cored Rutherford cables for the GSI fast ramping synchrotron. / Wilson, M.N.; Ghosh, A.K.; ten Haken, Bernard; Hassenzahl, W.V.; Kaugerts, J.; Moritz, G.; Muehle, C.; den Ouden, A.; Soika, R.; Wanderer, P.; Wessel, Wilhelm A.J.

In: IEEE transactions on applied superconductivity, Vol. 13, No. 2, 2003, p. 1704-1709.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Cored Rutherford cables for the GSI fast ramping synchrotron

AU - Wilson, M.N.

AU - Ghosh, A.K.

AU - ten Haken, Bernard

AU - Hassenzahl, W.V.

AU - Kaugerts, J.

AU - Moritz, G.

AU - Muehle, C.

AU - den Ouden, A.

AU - Soika, R.

AU - Wanderer, P.

AU - Wessel, Wilhelm A.J.

PY - 2003

Y1 - 2003

N2 - The new heavy ion synchrotron facility proposed by GSI will have two superconducting magnet rings in the same tunnel, with rigidities of 200 T/spl middot/m and 100 T/spl middot/m. Fast ramp times are needed, which can cause significant problems for the magnets, particularly in the areas of ac loss and field distortion. This paper discusses the 200 T/spl middot/m ring, which will use Cos/spl theta/ magnets based on the RHIC dipole design. We discuss the reasons for choosing Rutherford cable with a resistive core and report loss measurements carried out on cable samples. These measurements are compared with theoretical calculations using measured values of inter-strand resistance. Reasonably good agreement is found, but there are indications of nonuniformity in the adjacent resistance R/sub a/. Using these measured parameters, losses and temperature rise are calculated for a RHIC dipole in the operating cycle of the accelerator. A novel insulation scheme designed to promote efficient cooling is described.

AB - The new heavy ion synchrotron facility proposed by GSI will have two superconducting magnet rings in the same tunnel, with rigidities of 200 T/spl middot/m and 100 T/spl middot/m. Fast ramp times are needed, which can cause significant problems for the magnets, particularly in the areas of ac loss and field distortion. This paper discusses the 200 T/spl middot/m ring, which will use Cos/spl theta/ magnets based on the RHIC dipole design. We discuss the reasons for choosing Rutherford cable with a resistive core and report loss measurements carried out on cable samples. These measurements are compared with theoretical calculations using measured values of inter-strand resistance. Reasonably good agreement is found, but there are indications of nonuniformity in the adjacent resistance R/sub a/. Using these measured parameters, losses and temperature rise are calculated for a RHIC dipole in the operating cycle of the accelerator. A novel insulation scheme designed to promote efficient cooling is described.

KW - IR-59840

KW - METIS-212823

U2 - 10.1109/TASC.2003.812864

DO - 10.1109/TASC.2003.812864

M3 - Article

VL - 13

SP - 1704

EP - 1709

JO - IEEE transactions on applied superconductivity

JF - IEEE transactions on applied superconductivity

SN - 1051-8223

IS - 2

ER -

Access to Document

10.1109/TASC.2003.812864

Wilson03cored
open