The effects of insertion devices on beam dynamics in the ALS

Jackson, A.; Forest, E.; Nishimura, Hiroshi; Zisman, M.

doi:10.1109/pac.1989.72914

Cited by 9 publications

(6 citation statements)

References 1 publication

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“…The programs created using this approach are: a linear 4,0 code, Tracy [4]; a full 6x6 kick code, Gemini [5]; and a linear 4,0 and full 6x6 code, Tracy2 [6]. They were developed on V AXNMS using VMS Pascal and are used for off-line studies to evaluate the machine performance in presence of imperfections [7].…”

Section: Simulation and Modelingmentioning

confidence: 99%

Object-oriented software construction at ALS

Nishimura

1994

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Simulation and Modelingmentioning

confidence: 99%

Object-oriented software construction at ALS

Nishimura

1994

Nuclear Instruments and Methods in Physics Research Section A:

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“…Many existing [1,[19][20][21][22], upgrading [23] and planned rings [24][25][26][27][28] incorporate defocusing gradients into the main bending magnets, as part of a strategy to reduce the horizontal equilibrium emittance. The trajectory through rectangular gradient magnets does not follow a circular arc as in the case of pure dipole magnets, and the modeling of gradient bending magnets is challenging.…”

Section: Introductionmentioning

confidence: 99%

Storage ring lattice calibration using resonant spin depolarization

Wootton

Boland

Corbett

et al. 2013

Phys. Rev. ST Accel. Beams

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This paper presents measurements of the GeV-scale electron beam energy for the storage rings at the synchrotron light source facilities Australian Synchrotron (AS) and SPEAR3 at SLAC. Resonant spin depolarization was employed in the beam energy measurement, since it is presently the highest precision technique and an uncertainty of order 10 À6 was achieved at SPEAR3 and AS. Using the resonant depolarization technique, the beam energy was measured at various rf frequencies to measure the linear momentum compaction factor. This measured linear momentum compaction factor was used to evaluate models of the beam trajectory through combined-function bending magnets. The main bending magnets of both lattices are rectangular, horizontally defocusing gradient bending magnets. Four modeling approaches are compared for the beam trajectory through the bending magnet: a circular trajectory, linear and nonlinear hyperbolic cosine trajectories, and numerical evaluation of the trajectory through the measured magnetic field map. Within the uncertainty of the measurement the momentum compaction factor is shown to agree with the numerical model of the trajectory within the bending magnet, and disagree with the hyperbolic cosine approximation.

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“…As one of the first projects of the third generation light sources, the importance of accelerator modeling and simulation studies was strongly emphasized in the lattice design phase [7]. We have developed modeling and simulation programs, a 4x5 matrix code Tracy [8] and a full 6x6 code Gemini[B], using structured programming in Pascal.…”

Section: A Accelerator Modeling and Simulationmentioning

confidence: 99%

Taking an object-oriented view of accelerators

Nishimura

Proceedings Particle Accelerator Conference

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The effects of insertion devices on beam dynamics in the ALS

Cited by 9 publications

References 1 publication

Object-oriented software construction at ALS

Object-oriented software construction at ALS

Storage ring lattice calibration using resonant spin depolarization

Taking an object-oriented view of accelerators

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