IPAC2016 - List of Keywords (superconducting-magnet)

Paper	Title	Other Keywords	Page
TUPMB031	From Design Towards Series - The Superconducting Magnets for FAIR	quadrupole, dipole, sextupole, ion	1167
	E.S. Fischer, A. Bleile, V.I. Datskov, J.P. Meier, A. Mierau, H. Müller, C. Roux, P. Schnizer, K. Sugita GSI, Darmstadt, Germany
	The Facility for Anti-proton and Ion Research (FAIR-project) is now under construction. The heavy ion synchrotron SIS100 and the Super Fragment Separator (Super-FRS) use mainly superferric magnets as beam guiding elements. We present the design status of the magnets next to the experience obtained on the first magnets which were produced for SIS100. Finally we give an overview of the preparation for the series production and testing of the cryomagnetic modules.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB031
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPMB033	Design and Construction of the QC2 Superconducting Magnets in the SuperKEKB IR	solenoid, quadrupole, operation, focusing	1174
	N. Ohuchi, Y. Arimoto, N. Higashi, M. Iwasaki, M.K. Kawai, Y. Kondo, K. Tsuchiya, X. Wang, H. Yamaoka, Z.G. Zong KEK, Ibaraki, Japan H.K. Kono, T. Murai, S. Takagi Mitsubishi Electric Corp., Energy Systems Centre, Kobe, Japan
	SuperKEKB is now being constructed with a target luminosity of 8×10³⁵ which is 40 times higher than the KEKB luminosity. The luminosity can be achieved by the "Nano-Beam" accelerator scheme, in which both beams should be squeezed to about 50 nm at the beam interaction point, IP. The beam final focusing system consists of 8 superconducting quadrupole magnets, 4 superconducting solenoids and 43 superconducting corrector coils. The QC2 magnets are designed to be located in the second closest position from IP as the final beam focusing system of SuperKEKB. The two types of quadrupole magnets have been designed for the electron and positron beam lines. The QC2P for the positron beam is designed to generate the field gradient, G, of 28.1 T/m and the effective magnetic length, L, of 0.4099 m at the current, I, of 877.4 A. The QC2E for the electron beam line is designed to generate G=28.44 T/m and L=0.537 mm, 0.419 mm (for QC2LE, QC2RE) at I=977 A. In the paper, we will present the designs and the constructions of the two types of the quadrupole magnets.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB033
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPMB038	Degradation of the Insulation of the LHC Main Dipole Cable when Exposed to High Temperatures	dipole, operation, laser, high-voltage	1186
	V. Raginel, B. Auchmann, D. Kleiven, R. Schmidt, A.P. Verweij, D. Wollmann CERN, Geneva, Switzerland
	Funding: Research supported by the High Luminosity LHC project The energy stored in the LHC beams is substantial and requires a complex machine protection system to protect the equipment. Despite efficient beam absorbers, several failure modes lead to some limited beam impact on superconducting magnets. Thus it is required to understand the damage mechanisms and limits of superconducting magnets due to instantaneous beam impact. This becomes even more important due to the future upgrade of CERNs injector chain for the LHC that will lead to an increase of the beam brightness. A roadmap to perform damage tests on magnet parts has been presented previously. The polyimide insulation of the superconducting cable is identified as one of the critical elements of the magnet. In this contribution, the experimental setup to measure the insulation degradation of LHC main dipole cables due to exposure to high temperature is described. Compressed stacks of insulated Nb-Ti cables have been exposed to a heat treatment within an Argon atmosphere. After each heat treatment, high-voltage measurements verified the dielectric strength of the insulation. The results of this experiment provide an upper damage limit of superconducting magnets due to beam impact. Experimental Setups to Determine the Damage Limit of Superconducting Magnets for Instantaneous Beam Losses, V. Raginel et al, IPAC'15
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB038
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPMW003	Prototype Power Supply for SuperKEKB Final Focus Superconducting Corrector Magnets	power-supply, controls, luminosity, impedance	3537
	T. Oki, T. Adachi, S. Nakamura, N. Ohuchi, N. Tokuda KEK, Ibaraki, Japan
	A prototype power supply for the SuperKEKB final focus superconducting corrector magnets was developed. The aiming specifications of the power supply are a DC rated output of ± 60 A ± 5 V bipolar, current setting resolution < 1 ppm, current stability < 5 ppm/8 h, temperature coefficient < 1 ppm/degree, and current ripple < 5 ppm, where the assumed magnet inductance and cable resistance are 0.2'8.7 mH and 75 mohms, respectively. High power tests were performed and expected results were obtained.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMW003
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPMB031

From Design Towards Series - The Superconducting Magnets for FAIR

quadrupole, dipole, sextupole, ion

1167

E.S. Fischer, A. Bleile, V.I. Datskov, J.P. Meier, A. Mierau, H. Müller, C. Roux, P. Schnizer, K. Sugita
GSI, Darmstadt, Germany

The Facility for Anti-proton and Ion Research (FAIR-project) is now under construction. The heavy ion synchrotron SIS100 and the Super Fragment Separator (Super-FRS) use mainly superferric magnets as beam guiding elements. We present the design status of the magnets next to the experience obtained on the first magnets which were produced for SIS100. Finally we give an overview of the preparation for the series production and testing of the cryomagnetic modules.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB031

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPMB033

Design and Construction of the QC2 Superconducting Magnets in the SuperKEKB IR

solenoid, quadrupole, operation, focusing

1174

N. Ohuchi, Y. Arimoto, N. Higashi, M. Iwasaki, M.K. Kawai, Y. Kondo, K. Tsuchiya, X. Wang, H. Yamaoka, Z.G. Zong
KEK, Ibaraki, Japan
H.K. Kono, T. Murai, S. Takagi
Mitsubishi Electric Corp., Energy Systems Centre, Kobe, Japan

SuperKEKB is now being constructed with a target luminosity of 8×10³⁵ which is 40 times higher than the KEKB luminosity. The luminosity can be achieved by the "Nano-Beam" accelerator scheme, in which both beams should be squeezed to about 50 nm at the beam interaction point, IP. The beam final focusing system consists of 8 superconducting quadrupole magnets, 4 superconducting solenoids and 43 superconducting corrector coils. The QC2 magnets are designed to be located in the second closest position from IP as the final beam focusing system of SuperKEKB. The two types of quadrupole magnets have been designed for the electron and positron beam lines. The QC2P for the positron beam is designed to generate the field gradient, G, of 28.1 T/m and the effective magnetic length, L, of 0.4099 m at the current, I, of 877.4 A. The QC2E for the electron beam line is designed to generate G=28.44 T/m and L=0.537 mm, 0.419 mm (for QC2LE, QC2RE) at I=977 A. In the paper, we will present the designs and the constructions of the two types of the quadrupole magnets.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB033

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPMB038

Degradation of the Insulation of the LHC Main Dipole Cable when Exposed to High Temperatures

dipole, operation, laser, high-voltage

1186

V. Raginel, B. Auchmann, D. Kleiven, R. Schmidt, A.P. Verweij, D. Wollmann
CERN, Geneva, Switzerland

Funding: Research supported by the High Luminosity LHC project
The energy stored in the LHC beams is substantial and requires a complex machine protection system to protect the equipment. Despite efficient beam absorbers, several failure modes lead to some limited beam impact on superconducting magnets. Thus it is required to understand the damage mechanisms and limits of superconducting magnets due to instantaneous beam impact. This becomes even more important due to the future upgrade of CERNs injector chain for the LHC that will lead to an increase of the beam brightness. A roadmap to perform damage tests on magnet parts has been presented previously*. The polyimide insulation of the superconducting cable is identified as one of the critical elements of the magnet. In this contribution, the experimental setup to measure the insulation degradation of LHC main dipole cables due to exposure to high temperature is described. Compressed stacks of insulated Nb-Ti cables have been exposed to a heat treatment within an Argon atmosphere. After each heat treatment, high-voltage measurements verified the dielectric strength of the insulation. The results of this experiment provide an upper damage limit of superconducting magnets due to beam impact.
* Experimental Setups to Determine the Damage Limit of Superconducting Magnets for Instantaneous Beam Losses, V. Raginel et al, IPAC'15

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB038

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPMW003

Prototype Power Supply for SuperKEKB Final Focus Superconducting Corrector Magnets

power-supply, controls, luminosity, impedance

3537

T. Oki, T. Adachi, S. Nakamura, N. Ohuchi, N. Tokuda
KEK, Ibaraki, Japan

A prototype power supply for the SuperKEKB final focus superconducting corrector magnets was developed. The aiming specifications of the power supply are a DC rated output of ± 60 A ± 5 V bipolar, current setting resolution < 1 ppm, current stability < 5 ppm/8 h, temperature coefficient < 1 ppm/degree, and current ripple < 5 ppm, where the assumed magnet inductance and cable resistance are 0.2'8.7 mH and 75 mohms, respectively. High power tests were performed and expected results were obtained.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMW003

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)