IPAC2014 - List of Authors (Makida, Y.)

Paper	Title	Page
WEPRI087	Magnetic Field Measurement System for the SuperKEKB Final Focus Superconducting Magnets	2693
	N. Ohuchi, Y. Arimoto, M. Iwasaki, M.K. Kawai, Y. Kondo, Y. Makida, K. Tsuchiya, H. Yamaoka, Z.G. Zong KEK, Ibaraki, Japan
	SuperKEKB are now being constructed with a target luminosity of 8×1035 which is 40 times higher than KEKB. This luminosity can be achieved by the "Nano-Beam" 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 magnetic field measurement systems with the vertical cryostats were designed and constructed for performing the acceptance test of these magnets at 4 K. The field measurements are performed by the 6 different harmonic coils and a Hall probe. The higher order multi-pole field distributions along the magnet axes are very important for the beam operation, and then these distributions are measured with the 20 mm long harmonic coils. The integral fields of quadrupole magnets are measured with the 600 mm long harmonic coils. We will describe the magnetic field measurement system.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRI087
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Paper

Title

Page

Magnetic Field Measurement System for the SuperKEKB Final Focus Superconducting Magnets

2693

N. Ohuchi, Y. Arimoto, M. Iwasaki, M.K. Kawai, Y. Kondo, Y. Makida, K. Tsuchiya, H. Yamaoka, Z.G. Zong
KEK, Ibaraki, Japan

SuperKEKB are now being constructed with a target luminosity of 8×1035 which is 40 times higher than KEKB. This luminosity can be achieved by the "Nano-Beam" 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 magnetic field measurement systems with the vertical cryostats were designed and constructed for performing the acceptance test of these magnets at 4 K. The field measurements are performed by the 6 different harmonic coils and a Hall probe. The higher order multi-pole field distributions along the magnet axes are very important for the beam operation, and then these distributions are measured with the 20 mm long harmonic coils. The integral fields of quadrupole magnets are measured with the 600 mm long harmonic coils. We will describe the magnetic field measurement system.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRI087

Export •

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