HIAT2018 - List of Authors (Ni, D.S.)

Paper	Title	Page
MOPB02	Measurement Facility and Test Results for FRIB Superconducting Magnets at IMP	33
	W.J. Yang University of Chinese Academy of Sciences, Beijing, People’s Republic of China L.Z. Ma, E.M. Mei, D.S. Ni, B.M. Wu, W. Wu, W.J. Yang IMP/CAS, Lanzhou, People’s Republic of China
	The Facility of Rare Isotope Beams (FRIB) superconducting magnets are used to focus and steer the heavy ion beams of the FRIB driver linac. All the magnets are designed as a solenoid with bucking coils to suppress the stray field and have superconducting dipole correctors to steer both horizontal and vertical field. Two types of magnets are manufactured in China and some of them have been tested at Institute of Modern Physic(IMP). This paper describes the measurement facilities and magnetic axis measurement method. We also present a summary of the measurement process and test results of the magnetic performance for the magnets.
	Poster MOPB02 [0.892 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOPB02
About •	paper received ※ 09 November 2018 paper accepted ※ 16 January 2019 issue date ※ 05 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THOBA01	Multipole Magnets for the HIAF Fragment Separator Using the Canted-Cosine-Theta (CCT) Geometry	170
	W. Wu, Y. Liang, E.M. Mei, D.S. Ni, X.J. Ou, W.J. Yang, S.J. Zheng, L. Zhou IMP/CAS, Lanzhou, People’s Republic of China
	Funding: Work supported by the National Natural Science Foundation of China (Grant No. 11575266) The fragment separator of the HIAF (High Intensity Heavy Ion Accelerator Facility) project called HFRS re-quires quadrupoles with high gradients (11.4 T/m) and large bores (gap width of 420 mm). The iron dominated magnets with superconducting coils have been widely used in the similar facilities such as A1900, BigRIPS, SuperFRS and RISP with the advantages of low request for coils installation precision, simple fabrication and low cost, but they have large cold mass and helium contain-ment, which result in long time cooling down and high pressure rise during a quench. In addition, due to iron saturation, it is hard to guarantee on the field quality in the operated field range. A new coil dominated design based on the CantedCosineTheta geometry is presented for HFRS, which is expected to overcome these problems. The design superimposes several layers of oppositely wound helical windings to generate high quality quadru-pole. Sextupole, octupole and steering dipole can also be easily integrated to reduce the length of cryostat. This paper reports the detailed design of HFRS multiplets based on the CCT concept and the construction of a sub-scale prototype.
	Slides THOBA01 [8.135 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-THOBA01
About •	paper received ※ 25 October 2018 paper accepted ※ 11 December 2018 issue date ※ 05 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Measurement Facility and Test Results for FRIB Superconducting Magnets at IMP

33

W.J. Yang
University of Chinese Academy of Sciences, Beijing, People’s Republic of China
L.Z. Ma, E.M. Mei, D.S. Ni, B.M. Wu, W. Wu, W.J. Yang
IMP/CAS, Lanzhou, People’s Republic of China

The Facility of Rare Isotope Beams (FRIB) superconducting magnets are used to focus and steer the heavy ion beams of the FRIB driver linac. All the magnets are designed as a solenoid with bucking coils to suppress the stray field and have superconducting dipole correctors to steer both horizontal and vertical field. Two types of magnets are manufactured in China and some of them have been tested at Institute of Modern Physic(IMP). This paper describes the measurement facilities and magnetic axis measurement method. We also present a summary of the measurement process and test results of the magnetic performance for the magnets.

Poster MOPB02 [0.892 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOPB02

About •

paper received ※ 09 November 2018 paper accepted ※ 16 January 2019 issue date ※ 05 November 2019

Export •

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

THOBA01

Multipole Magnets for the HIAF Fragment Separator Using the Canted-Cosine-Theta (CCT) Geometry

170

W. Wu, Y. Liang, E.M. Mei, D.S. Ni, X.J. Ou, W.J. Yang, S.J. Zheng, L. Zhou
IMP/CAS, Lanzhou, People’s Republic of China

Funding: Work supported by the National Natural Science Foundation of China (Grant No. 11575266)
The fragment separator of the HIAF (High Intensity Heavy Ion Accelerator Facility) project called HFRS re-quires quadrupoles with high gradients (11.4 T/m) and large bores (gap width of 420 mm). The iron dominated magnets with superconducting coils have been widely used in the similar facilities such as A1900, BigRIPS, SuperFRS and RISP with the advantages of low request for coils installation precision, simple fabrication and low cost, but they have large cold mass and helium contain-ment, which result in long time cooling down and high pressure rise during a quench. In addition, due to iron saturation, it is hard to guarantee on the field quality in the operated field range. A new coil dominated design based on the CantedCosineTheta geometry is presented for HFRS, which is expected to overcome these problems. The design superimposes several layers of oppositely wound helical windings to generate high quality quadru-pole. Sextupole, octupole and steering dipole can also be easily integrated to reduce the length of cryostat. This paper reports the detailed design of HFRS multiplets based on the CCT concept and the construction of a sub-scale prototype.

Slides THOBA01 [8.135 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-THOBA01

About •

paper received ※ 25 October 2018 paper accepted ※ 11 December 2018 issue date ※ 05 November 2019

Export •

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