Laminated hybrid materials on basis of Al-Li alloy sheets

Антипов, В.В.; Serebrennikova, N.Yu.; Shestov, V. V.; Sidel’nikov, V. V.

doi:10.18577/2071-9140-2017-0-s-212-224

Cited by 10 publications

(11 citation statements)

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“…Section III described a configuration that supports invariant-conserving orbits at tune spreads up to ∆ν = 0.13 (RMS 0.015) with a single octupole insert. The primary limitation of the design as presented is the strength of the predicted effect, which is much lower than the fully-integrable system (up to unity tune spread with multiple insertions [8]). This is partially due to the high-density, many-bend lattice that required a perhaps shorter-than-optimal nonlinear insert.…”

Section: Discussionmentioning

confidence: 94%

“…However, at this point in time the concept is awaiting demonstration. Progress towards this goal is measured in the commissioning of the Integrable Optics Test Accelerator (IOTA), described in reference [8], as well as the effort described here.…”

Section: Introductionmentioning

confidence: 99%

“…This is in contrast to the IOTA insertion device, which uses shaped iron pole-pieces for both a QI octupole insert and a fully integrable potential[8,15].…”

mentioning

confidence: 99%

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Single-invariant nonlinear optics for a small electron recirculator

Ruisard

Komkov

Beaudoin

et al. 2019

Phys. Rev. Accel. Beams

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This paper describes the design and simulation of a proof-of-concept quasi-integrable octupole lattice at the University of Maryland Electron Ring (UMER). This experiment tests the feasibility of nonlinear integrable optics, a novel technique that is expected to mitigate resonant beam loss and enable low-loss high-intensity beam transport in rings. Integrable lattices with large amplitudedependent tune spreads, created by nonlinear focusing elements, are proposed to damp beam response to resonant driving perturbations while maintaining large dynamic aperture [Danilov and Nagaitsev, PRSTAB, 2010]. At UMER, a lattice with a single octupole insert is designed to test the predictions of this theory. The planned experiment employs a low-current high-emittance beam with low space charge tune shift (∼ 0.005) to probe the dynamics of a lattice with large externally-induced tune spread. Design studies show that a lattice composed of a 25-cm octupole insert and existing UMER optics can induce a tune spread of ∼ 0.13. Stable transport is observed in PIC simulation for many turns at space charge tune spread 0.008. A maximum spread of ∆ν = 0.11 (RMS 0.015) is observed for modest octupole strength (peak 50 T /m 3 ). A simplified model of the system explores beam sensitivity to steering and focusing errors. Results suggest that control of orbit distortion to < 0.2 mm within the insert region is essential. However, we see only weak dependence on deviations of lattice phase advance (≤ 0.1 rad.) from the invariant-conserving condition.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Single-invariant nonlinear optics for a small electron recirculator

Ruisard

Komkov

Beaudoin

et al. 2019

Phys. Rev. Accel. Beams

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“…Table 3 presents main parameters of the linac beam. The FAST beamline is well equipped with necessary types of beam diagnostics (see details in [15]): beam position monitors (BPMs), transverse profile monitors to measure beam size, resistive wall current monitors to measure beam current and loss monitors to measure beam losses and serve as the primary protection element in the machine protection system, while the beam energy is measured with use of two spectrometer magnets of D122 and D600.…”

Section: Record High Gradient Beam Accelerationmentioning

confidence: 99%

Record high-gradient SRF beam acceleration at Fermilab

et al. 2018

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Many modern and future particle accelerators employ high gradient superconducting RF (SRF) to generate beams of high energy, high intensity and high brightness for research in high energy and nuclear physics, basic energy sciences, etc. In this paper we report the record performance large-scale SRF system with average beam accelerating gradient matching the International Linear Collider (ILC) specification of 31.5 MV m −1 . Design of the eight cavity 1.3 GHz SRF cryomodule, its performance without the beam and results of the system commissioning with high intensity electron beam at Fermilab Accelerator Science and Technology (FAST) facility are presented. We also briefly discuss opportunities for further beam studies and tests at FAST including those on even higher gradient and more efficient SRF acceleration, as well as exploration of the system performance with full ILC-type beam specifications.

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“…The Integrable Optics Test Accelerator (IOTA) is currently under its final stages of construction at Fermilab [16]. The accelerator will have the capability of operating with either electrons with energies of up to 150 MeV or protons with momentum of 70 MeV/c.…”

Section: The Iota Ringmentioning

confidence: 99%

Light transport and amplification for a proof-of-principle experiment of Optical Stochastic Cooling

Andorf

2018

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The Optical Stochastic Cooling (OSC) is a proposed technique that holds promise for the cooling of heavy-ions and dense TeV scale hadron beams. In the OSC a particle radiates a short wave-packet in an upstream "pickup" undulator and is made to interact with its own radiation in a downstream "kicker" undulator providing a corrective energy kick. In this thesis we present formulas and wave-optics simulations to compute the single-particle kick amplitude. The wave-optics simulations are further used to model amplification of the pickup radiation in a solid-state gain medium. This research was carried out in preparation of a proof-of-principle demonstration of the OSC in Fermilab's Integrable Optics Test Accelerator (IOTA) using 100 MeV electrons.

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Laminated hybrid materials on basis of Al-Li alloy sheets

Cited by 10 publications

References 0 publications

Single-invariant nonlinear optics for a small electron recirculator

Single-invariant nonlinear optics for a small electron recirculator

Record high-gradient SRF beam acceleration at Fermilab

Light transport and amplification for a proof-of-principle experiment of Optical Stochastic Cooling

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