Amplifier for Optical Stochastic Cooling

Andorf, Matthew; Lebedev, Valeri; Piot, Philippe; Ruan, J.

doi:10.1364/cleo_at.2017.jw2a.90

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…an amplifier, based on Cr:ZnSe, gives 7 dB of gain. However the kick amplitude is expected to increase only by a factor 1.65 when host dispersion and amplifier bandwidth are taken into account [19].…”

Section: Discussionmentioning

confidence: 99%

Computation and numerical simulation of focused undulator radiation for optical stochastic cooling

Andorf

Lebedev

Jarvis

et al. 2018

Phys. Rev. Accel. Beams

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Optical stochastic cooling (OSC) is a promising technique for the cooling of dense particle beams. Its operation at optical frequencies enables obtaining a much larger bandwidth compared to the wellknown microwave-based stochastic cooling. In the OSC undulator radiation generated by a particle in an upstream "pickup" undulator is amplified and focused at the location of a downstream "kicker" undulator. Inside the kicker, a particle interacts with its own radiation field from the pickup. The resulting interaction produces a longitudinal kick with its value depending on the particles momentum which, when correctly phased, yields to longitudinal cooling. The horizontal cooling is achieved by introducing a coupling between longitudinal and horizontal degrees of freedom. Vertical cooling is achieved by coupling between horizontal and vertical motions in the ring. In this paper, we present formulae for computation of the corrective kick and validate them against numerical simulations performed using a wave-optics computer program.

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Section: Discussionmentioning

confidence: 99%

Computation and numerical simulation of focused undulator radiation for optical stochastic cooling

Andorf

Lebedev

Jarvis

et al. 2018

Phys. Rev. Accel. Beams

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“…The planned optical-stochastic cooling at IOTA is an example of such research. In the FAST injector system, relevant to the OSC (see section 3.5), could be tested, for instance several undulator magnets currently under construction [91] to produce the necessary wavelength (∼2 µm) to test a single-pass Cr:ZnSe amplifier currently under development for the OSC experiment [92]. Additionally, two undulator magnets separated with the proper magnetic lattice could enable the exploration of information preservation, laser-assisted beam -37 -…”

Section: Opportunities For Advanced Beam Dynamics Studiesmentioning

confidence: 99%

IOTA (Integrable Optics Test Accelerator): facility and experimental beam physics program

et al. 2017

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The Integrable Optics Test Accelerator (IOTA) is a storage ring for advanced beam physics research currently being built and commissioned at Fermilab. It will operate with protons and electrons using injectors with momenta of 70 and 150 MeV/c, respectively. The research program includes the study of nonlinear focusing integrable optical beam lattices based on special magnets and electron lenses, beam dynamics of space-charge effects and their compensation, optical stochastic cooling, and several other experiments. In this article, we present the design and main parameters of the facility, outline progress to date and provide the timeline of the construction, commissioning and research. The physical principles, design, and hardware implementation plans for the major IOTA experiments are also discussed.

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“…The simulation in SRW are performed in the frequency domain: the field frequency components within the PUradiation bandwidth are propagated and the field amplitude in the time domain inside the KU is computed [9]. This is first done for the case of a single focusing lens using L u and λ o from Tab.…”

Section: Single-lens Focusingmentioning

confidence: 99%

Wave-optics modeling of the optical-transport line for passive optical stochastic cooling

Andorf

Lebedev

Piot

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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a b s t r a c tOptical stochastic cooling (OSC) is expected to enable fast cooling of dense particle beams. Transition from microwave to optical frequencies enables an achievement of stochastic cooling rates which are orders of magnitude higher than ones achievable with the classical microwave based stochastic cooling systems. A subsystem critical to the OSC scheme is the focusing optics used to image radiation from the upstream ''pickup'' undulator to the downstream ''kicker'' undulator. In this paper, we present simulation results using wave-optics calculation carried out with the Synchrotron Radiation Workshop (SRW). Our simulations are performed in support to a proof-of-principle experiment planned at the Integrable Optics Test Accelerator (IOTA) at Fermilab. The calculations provide an estimate of the energy kick received by a 100-MeV electron as it propagates in the kicker undulator and interacts with the electromagnetic pulse it radiated at an earlier time while traveling through the pickup undulator.

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Amplifier for Optical Stochastic Cooling

Abstract: Abstract:The amplification of electromagnetic radiation emitted from charged-particle beams can be used for beam cooling. We discuss our progress to develop such a system using undulator radiation.

Cited by 3 publications

References 3 publications

Computation and numerical simulation of focused undulator radiation for optical stochastic cooling

Computation and numerical simulation of focused undulator radiation for optical stochastic cooling

IOTA (Integrable Optics Test Accelerator): facility and experimental beam physics program

Wave-optics modeling of the optical-transport line for passive optical stochastic cooling

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