Magnet design for an ultralow emittance storage ring

Saeidi, Farhad; Razazian, Mohamad; Rahighi, J.; Pourimani, Reza

doi:10.1103/physrevaccelbeams.19.032401

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…Deformation at the other edge of the pole is 11 µm for 36 mm dipole and 14 µm for 59 mm dipole. The deformed pole results in the extra dipole and quadrupole fields which can be compensated by reducing the applied current of the dipole magnets and adjusting the quadrupole field of quadrupole magnets in the lattice [7]. The pole deformation may be reduced further by increasing or adjusting the size of magnet yoke, however material cost and available space within the storage ring should also be taken into account.…”

Section: Mechanical Analysismentioning

confidence: 99%

Design of dipole magnets for Siam Photon Source II

Sunwong

Klinkiew

Leetha

et al. 2023

J. Phys.: Conf. Ser.

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Two types of dipole magnets are designed for the storage ring of Siam Photon Source II, the second synchrotron light source in Thailand. Magnetic field at the magnet center is 0.87 T, which bends a 3.0 GeV electron beam with the bending radius of 11.532 m and consequently the synchrotron radiation is generated. The first type of dipole magnet is a standard dipole with the magnet gap of 36 mm. The other type is designed for Infrared (IR) beamline with the larger magnet gap of 59 mm to accommodate a wide opening angle of IR radiation. The magnets are designed such that the operating current is the same while the turn number of magnet coils and the magnet gap are allowed to be different. Therefore, a single power supply can be used to excite all dipole magnets in the storage ring which will be connected in series. Magnet modelling and magnetic field calculation are performed in Opera-3D. The magnet poles are shimmed near the edges to improve magnetic field homogeneity to be within the requirement of 2×10−4 within the good field region. Mechanical analysis of magnet structure is performed in SOLIDWORKS and ANSYS where the maximum deformation of 18 - 23 µm is found at the magnet pole and the first-mode natural frequency is higher than 200 Hz.

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Section: Mechanical Analysismentioning

confidence: 99%

Design of dipole magnets for Siam Photon Source II

Sunwong

Klinkiew

Leetha

et al. 2023

J. Phys.: Conf. Ser.

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“…Implementing dipole magnets including quadrupole components in storage ring could lead to fewer quadrupoles while stronger and also smaller ones, compared with those in former lattice [5]. The quadrupole with the maximum field gradient of 40.858 T/m and the magnetic length of 200 mm is studied in this part.…”

Section: Quadrupolesmentioning

confidence: 99%

“…The aperture radius is 22 mm with 1.5 mm clearance between the pole and the vacuum chamber. The same design is applied for other quadrupoles, provided decreasing the operating current to meet the desired field value [5]. Figure 14 displays the simulated magnetic field inside the quadrupole.…”

Section: Quadrupolesmentioning

confidence: 99%

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Magnet design for Iranian Light Source Facility storage ring

et al. 2020

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The Iranian Light Source Facility (ILSF) is a 3 GeV synchrotron radiation laboratory which is in the detailed design stage and the main building site is being excavated in Qazvin, 150 km from Tehran. The ILSF storage ring (SR) is based on a Five-Bend Achromat (5BA) lattice providing an ultra-low beam emittance of 270 pm rad. The ring is comprised of 100 combined dipole magnets, 240 quadrupoles and 320 sextupoles with additional coils as dipole and skew quadrupole correctors. In this paper, some design features of the SR magnets along with their detailed physical design are debated. The corresponding electrical and cooling calculations and mechanical layouts are investigated as well.

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“…Figure 1 represents the three magnets investigated in this study while piecing together as in the lattice design, and table 1 gives their nominal parameters. The detailed design of the ILSF SR lattice and the magnet designs would be in references [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Magnetic cross-talk simulation for Iranian Light Source Facility storage ring

et al. 2022

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Magnetic cross-talk due to the small free space between the magnets of a machine may result in significant distortions of the magnetic field integration and performance distortion of the machine. This paper presents the preparation done at the Iranian Light Source Facility (ILSF) on integrated magnetic components of three storage ring (SR) magnets with minimum space between the yokes, modeled separately in Opera-3D code and accumulatively as in the lattice design. The results show that the integrated quadrupole component of the BE2 dipole magnet remains nearly the same, while the integrated dipole and sextupole components are reduced by 0.13% and 4.69%, respectively. By the same token, the integrated quadrupole component of the Q11 in the lattice is decreased by 0.07%, and the integrated sextupole component of the S4 sextupole is reduced by 8.14%. The probable deviation on the higher-order integrated multipoles together with harmonic fields along the beam trajectory are discussed, and some studies are introduced to cut down any deficient effects.

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Magnet design for an ultralow emittance storage ring

Cited by 7 publications

References 9 publications

Design of dipole magnets for Siam Photon Source II

Design of dipole magnets for Siam Photon Source II

Magnet design for Iranian Light Source Facility storage ring

Magnetic cross-talk simulation for Iranian Light Source Facility storage ring

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