Conceptual design and expected performance of Iranian light source facility injectors

Ghasem, Hossein; Ahmadi, E.

doi:10.1016/j.nima.2015.05.034

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…The ILSF BR is designed based on the FODO lattice structure without matching sections to reduce the number of magnets while there is a finite dispersion function between the magnets. A combination of combined-function dipoles and pure sextupoles are used as a nonlinear method to correct the natural chromaticity and optimize the dynamic aperture [10]. The ILSF BR magnets have been modified recently and are reported in this study.…”

Section: Introductionmentioning

confidence: 99%

Design of low emittance booster ring magnets for Iranian Light Source Facility[This paper is supported by Iranian Light Source Facility.]

Saeidi¹,

Yousefnejad²,

Hashemi³

2021

J. Inst.

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Iranian Light Source Facility (ILSF) is a 3 GeV synchrotron radiation laboratory in the detailed design stage. The main building site is being excavated in Qazvin, 150 km from Tehran. The Booster ring of this facility with a circumference of 504 m and a low emittance of 3.5 nm rad accelerates electrons from 150 MeV to 3 GeV. Using POISSON and OPERA codes, we designed the ILSF booster ring magnets including dipoles, quadrupoles, sextupoles, and separate correctors. Cooling and electrical calculations are done, and ramping effects are considered. The ILSF has also been attempting to practice mechanical designs and to build prototype magnets at this stage too.

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Section: Introductionmentioning

confidence: 99%

Design of low emittance booster ring magnets for Iranian Light Source Facility[This paper is supported by Iranian Light Source Facility.]

Saeidi¹,

Yousefnejad²,

Hashemi³

2021

J. Inst.

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“…It is designed based on the multi-bend achromat lattice and delivers an ultra-low natural beam emittance of 0.48 nm rad [1,2]. The booster with simple FODO magnetic lattice structure is employed as the main injector loop [3]. It is fed by a 150 MeV pre-injection system and accelerates the incoming beam to the target energy of 3 GeV.…”

Section: Introductionmentioning

confidence: 99%

Single bunch and multi-bunch injection schemes for Iranian Light Source Facility booster synchrotron

et al. 2017

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In this paper, the design proposal for the Iranian Light Source Facility (ILSF) chopper is presented and the expected performance of both single bunch and multi-bunch modes of beam injection into the booster synchrotron is described. For the multi-bunch mode, a 100 MHz sub-harmonic pre-buncher is proposed to be employed next to the electron gun particularly to reduce the particle loss during the energy ramp of the booster. The results indicated significant improvement of the injection efficiency into the booster. The total particle loss rate for the multi-bunch injection is reduced from 35% to 4%.

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“…It provides an ultra low electron beam emittance of 0.48 nm rad. In order to fill up the storage ring, a full energy booster synchrotron fed by a 150 MeV pre-injection system is employed [5]. It will be housed in the shared tunnel with the storage ring.…”

Section: Introductionmentioning

confidence: 99%

Bunch compression in low emittance pre-injection system of Iranian Light Source Facility

et al. 2016

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In this paper, we introduce the bunch compressor of low emittance Iranian Light Source Facility (ILSF) pre-injection system and discuss on its expected performance by particle tracking. The design and fabrication procedures of the alpha magnet as the main bunch compression component is described. The outcome bunches from the RF electron gun are shortened to 900 fs by the alpha magnet operating at 224 G/cm. The energy spread and total charge of each compressed bunch are 10% and 100 pC respectively. For the electron bunches with low energy spread, less than 1%, further bunch compression is done by the velocity bunching through the first Linac tube. Regardless of the space charge effect and for the case of 98% filtering of the lowest energy electrons with the energy slit inside the alpha magnet, the outcome bunch from the RF gun is firstly compressed to 100 fs by the alpha magnet operating the optimized gradient and then to 30 fs by the first Linac tube. The bunch length will grow to 160 fs after the alpha magnet and to 90 fs after the first Linac tube when the space charge forces are taken into account. K: Instrumentation for particle accelerators and storage rings -low energy (linear accelerators, cyclotrons, electrostatic accelerators); Accelerator modelling and simulations (multi-particle dynamics; single-particle dynamics); Acceleration cavities and magnets superconducting (hightemperature superconductor; radiation hardened magnets; normal-conducting; permanent magnet devices; wigglers and undulators) 1Corresponding author.

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Conceptual design and expected performance of Iranian light source facility injectors

Cited by 7 publications

References 3 publications

Design of low emittance booster ring magnets for Iranian Light Source Facility[This paper is supported by Iranian Light Source Facility.]

Design of low emittance booster ring magnets for Iranian Light Source Facility[This paper is supported by Iranian Light Source Facility.]

Single bunch and multi-bunch injection schemes for Iranian Light Source Facility booster synchrotron

Bunch compression in low emittance pre-injection system of Iranian Light Source Facility

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