Synchrotron radiation

Ternov, I. M.

doi:10.1070/pu1995v038n04abeh000082

Cited by 69 publications

(54 citation statements)

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“…al. [2], ignoring higher order effects, is of particular interest as it expresses the distribution in terms of physical parameters such as longitudinal component of the spin of the electron -'ζ' and the vertical angle -ψ (ψ is the angle between the momentum component of the SR photon in the y − z plane and the z axis indicated in Figure 1.) [3]. The vertical angle is important as it determines the geometry of the apparatus besides other design parameters such as position of collimators.…”

Section: Spin-light Characteristicsmentioning

confidence: 99%

Feasibility of the Spin-Light Polarimetry Technique for Longitudinally Polarized Electron Beams

Mohanmurthy

Dutta

2014

EPJ Web of Conferences

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Abstract. A novel polarimeter based on the asymmetry in the spatial distribution of synchrotron radiation (SR) will make for a fine addition to the existing Møller and Compton polarimeters. The spin light polarimeter consists of a set of wiggler magnet along the beam that generate synchrotron radiation. The spatial distribution of synchrotron radiation will be measured by ionization chambers. The up-down (below and above the wiggle) spatial asymmetry in the transverse plain is used to quantify the polarization of the beam. As a part of the design process, effects of a realistic wiggler magnetic field and an extended beam size were studied. The perturbation introduced by these effects was found to be negligible. Lastly, a full fledged GEANT-4 simulation was built to study the response of the ionization chamber (IC).

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Section: Spin-light Characteristicsmentioning

confidence: 99%

Feasibility of the Spin-Light Polarimetry Technique for Longitudinally Polarized Electron Beams

Mohanmurthy

Dutta

2014

EPJ Web of Conferences

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“…Let us consider the spectral power of synchrotron (or curvature) radiation emitted in this case by a bunch of length L consisting of N particles. According to [41], this quantity is defined by the following expression:…”

Section: B Longitudinal Coherencementioning

confidence: 99%

On the Mystery of the Interpulse Shift in the Crab Pulsar

Конторович¹,

Trofymenko²

2017

JPSA

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Abstract:A new mechanism of radiation emission in the polar gap of a pulsar is proposed. It is the curvature radiation emitted by positrons moving towards the surface of the neutron star along inclined magnetic field and reflected from the surface. Such radiation interferes with transition radiation emitted from the neutron star when positrons hit the surface. Proposed mechanism explains the mystery of the interpulse shift in the Crab pulsar at high frequencies discovered by Moffett and Hankins twenty years ago. We have found also reflected energy flux and spectrum, discussed coherence and disappearance of interpulse shift with increase of frequency.

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“…These oscillations and widening of the trajectory are essential in determining the dynamics of electrons in an accelerator, specially storage rings. Sokolov and Ternov also developed the mathematics required to describe the spin of relativistic electrons moving in an external electromagnetic field [14], [15], which allowed them to calculate the electron spin related properties of SR.…”

Section: A Quantum Theory Of Synchrotron Radiationmentioning

confidence: 99%

A Spin-Light Polarimeter for Multi-GeV Longitudinally Polarized Electron Beams

Mohanmurthy

Dutta

2014

IEEE Trans. Nucl. Sci.

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Abstract-The physics program at the upgraded Jefferson Lab (JLab) and the physics program envisioned for the proposed electron-ion collider (EIC) include large efforts to search for interactions beyond the Standard Model (SM) using parity violation in electroweak interactions. These experiments require precision electron polarimetry with an uncertainty of < 0.5 %. The spin dependent Synchrotron radiation (SR), called "spinlight," can be used to monitor the electron beam polarization. In this article we develop a conceptual design for a "spin-light" polarimeter that can be used at a high intensity, multi-GeV electron accelerator. We have also built a Geant4 based simulation for a prototype device and report some of the results from these simulations.

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Synchrotron radiation

Cited by 69 publications

References 0 publications

Feasibility of the Spin-Light Polarimetry Technique for Longitudinally Polarized Electron Beams

Feasibility of the Spin-Light Polarimetry Technique for Longitudinally Polarized Electron Beams

On the Mystery of the Interpulse Shift in the Crab Pulsar

A Spin-Light Polarimeter for Multi-GeV Longitudinally Polarized Electron Beams

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