SPEAR 3 upgrade project: a status report

Corbett, W.J.; Hettel, R.; Akre, R.; Bellomo, P.; Boyce, R.; Cadapan, L.; Cassel, R.; Choi, Byung‐Ho; Dell'Orco, D.; Evans, I. N.; Elioff, T.; Fuller, R.; Kurita, N.; Langton, J.; Leyh, G.E.; Limborg, C.; MacNair, D.; Martin, Donald; Medvedko, E.; Ng, Cho-Kuen; Nosochkov, Y.; Olsen, J.; Ortega, Manuel G.; Pappas, Chris H.; Park, S.; Rarback, H.; Ringwall, A.; Rodriguez, P.; Safranek, J.; Schwarz, H.; Scott, B.; Šebek, J.; Smith, S. R.; Tanabe, J.; Terebilo, A.; Wermelskirchen, C.; Yotam, R.

doi:10.1109/pac.2001.987869

Cited by 5 publications

(5 citation statements)

References 7 publications

(2 reference statements)

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“…Sources of electron beam position disturbances are listed in Table 1 [3,5,7,8]. Table 2 [7,[9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] provides details of light sources with slow-orbit feedback (SOFB) correction systems, fast-orbit feedback (FOFB) correction systems, and hybrid correction schemes (SOFB + FOFB). Global orbit feedback systems include BPMs, corrector magnets, and a circuit-controlled algorithm to obtain an orbit response matrix (ORM).…”

Section: Global Orbit Feedback Systemmentioning

confidence: 99%

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Development of a Combined Horizontal and Vertical Correcting Magnet for Siam Photon Source II

Prawanta,

Sunwong,

Singthong

et al. 2023

Particles

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A prototype of a combined horizontal and vertical correcting magnet was designed and fabricated for the 3 GeV storage ring of Siam Photon Source II, which will be the second synchrotron light source in Thailand. The magnet will be employed for fast-orbit feedback correction, with a required magnetic field integral of approximately 8 Tesla.mm. The magnet pole and yoke were manufactured using laminated silicon steel to minimize hysteresis and eddy current losses during operation. Magnet modeling and magnetic field calculations were performed using Opera-3D. The size of the gap between the magnet poles is limited by the size of the vacuum chamber over which the magnet will be installed; in this case, it was designed to be 65 mm. Mechanical analysis of the structure of the magnet was performed using SOLIDWORKS and ANSYS. Magnetic field measurements were obtained using the Hall probe technique. The entire prototype, from its design to manufacturing and measurement, was completed in-house. This design will be appropriate for application at the Siam Photon Source II storage ring.

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Section: Global Orbit Feedback Systemmentioning

confidence: 99%

“…The fast-corrector magnet at the ESRF [7] obtained a DC to 500 Hz bandwidth via iron-core lamination. SPEAR3* [20], on the other hand, has a laminated fast corrector with a DC to 100 Hz bandwidth.…”

Section: Corrector Magnets For Sofb and Fofbmentioning

confidence: 99%

Development of a Combined Horizontal and Vertical Correcting Magnet for Siam Photon Source II

Prawanta,

Sunwong,

Singthong

et al. 2023

Particles

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“…The SPEAR storage ring at the Stanford Synchrotron Radiation Laboratory (SSRL) has been upgraded to a third generation storage ring, SPEAR3 (1)(2)(3) . The average current of the stored electrons in the ring will increase from 100 to 500 mA.…”

Section: Introductionmentioning

confidence: 99%

Calculations of neutron and photon source terms and attenuation profiles for the generic design of the SPEAR3 storage ring shield

Rokni¹,

Khater²,

Liu³

et al. 2005

Radiation Protection Dosimetry

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The FLUKA Monte Carlo particle generation and transport code was used to calculate shielding requirements for the 3 GeV, 500 mA SPEAR3 storage ring at the Stanford Synchrotron Radiation Laboratory. The photon and neutron dose equivalent source term data were simulated for a 3 GeV electron beam interacting with two typical target/shielding geometries in the ring. The targets simulated are a rectangular block of 0.7 cm thick copper and a 5 cm thick iron block, both tilted at 1 degree relative to the beam direction. Attenuation profiles for neutrons and photons in concrete and lead as a function of angle at different shield thicknesses were calculated. The first, second and equilibrium attenuation lengths of photons and neutrons in the shield materials are derived from the attenuation profiles. The source term data and the attenuation lengths were then used to evaluate the shielding requirements for the ratchet walls of all front-ends of the SPEAR3 storage ring.

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“…AT is being developed to support the ongoing design and future operations of the SPERA3 light source [1]. Unlike most existing accelerator codes, AT is not a standalone program or a class library, but a MATLAB toolbox.…”

Section: Introductionmentioning

confidence: 99%

Accelerator Modeling with MATLAB Accelerator Toolbox

Terebilo¹

2002

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SPEAR 3 upgrade project: a status report

Cited by 5 publications

References 7 publications

Development of a Combined Horizontal and Vertical Correcting Magnet for Siam Photon Source II

Development of a Combined Horizontal and Vertical Correcting Magnet for Siam Photon Source II

Calculations of neutron and photon source terms and attenuation profiles for the generic design of the SPEAR3 storage ring shield

Accelerator Modeling with MATLAB Accelerator Toolbox

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