Designing a bunch compressor chicane for a multi-TeV linear collider

Stulle, F.; Adelmann, Andreas; Pedrozzi, M.

doi:10.1103/physrevstab.10.031001

Cited by 22 publications

(10 citation statements)

References 4 publications

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“…The present understanding of CSR effects on ultrarelativistic beam transverse emittance may be traced back to [11,[14][15][16][17][18][19][20][21]. In summary, CSR fields affect the electron transverse motion both with their direct radial forces and by changing the particle energy in the dispersive line.…”

Section: Theoretical Modelmentioning

confidence: 99%

Maximum brightness of linac-driven electron beams in the presence of collective effects

Mitri

2013

Phys. Rev. ST Accel. Beams

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Linear accelerators capable of delivering high brightness electron beams are essential components of a number of research tools, such as free electron lasers (FELs) and elementary particle colliders. In these facilities the charge density is high enough to drive undesirable collective effects (wakefields) that may increase the beam emittance relative to the injection level, eventually degrading the nominal brightness. We formulate a limit on the final electron beam brightness, imposed by the interplay of geometric transverse wakefield in accelerating structures and coherent synchrotron radiation in energy dispersive regions. Numerous experimental data of vacuum ultraviolet and x-ray FEL drivers validate our model. This is then used to show that a normalized brightness of $10 16 A=m 2 , promised so far by ultralow charge beams ($ 1-10 pC), can in fact be reached with a 100 pC charge beam in the 1.2 GeV FERMI@Elettra accelerator, with the existing machine configuration.

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Section: Theoretical Modelmentioning

confidence: 99%

Maximum brightness of linac-driven electron beams in the presence of collective effects

Mitri

2013

Phys. Rev. ST Accel. Beams

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“…2 A basis for neglecting dependence of longitudinal force components on transverse beam dimensions is that, the characteristic ratio 3 x =ðR 2 l Þ being small compared to 1 (as it is); this assures that the transverse bunch size is small compared to the distance over which the longitudinal CSR force is roughly constant [14]. 3 Recent investigations of dependence on lattice function values at the compressor location have been performed by Dohlus and Limberg [15], and by Stulle [16]. tended charges.…”

Section: A Theoreticalmentioning

confidence: 99%

Emittance growth due to static and radiative space charge forces in an electron bunch compressor

Talman

Malitsky

Stulle

2009

Phys. Rev. ST Accel. Beams

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“…High peak current in the chicane emits coherent synchrotron radiation (CSR), and this may constitute a problem in FEL performance. However, CSR from such high peak current has no noticeable effects on the electron beam 47 and can be manageable by coupling of transverse and longitudinal dynamics in the chicane 48 or reducing the length of the dipole magnet of the chicane 49 . Therefore, CSR does not seriously affect our method, and it accords with the simulation results from ELEGANT code, which includes the CSR effect, as shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

Isolated terawatt attosecond hard X-ray pulse generated from single current spike

Shim

Parc

Kumar

et al. 2018

Sci Rep

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Isolated terawatt (TW) attosecond (as) hard X-ray pulse is greatly desired for four-dimensional investigations of natural phenomena with picometer spatial and attosecond temporal resolutions. Since the demand for such sources is continuously increasing, the possibility of generating such pulse by a single current spike without the use of optical or electron delay units in an undulator line is addressed. The conditions of a current spike (width and height) and a modulation laser pulse (wavelength and power) is also discussed. We demonstrate that an isolated TW-level as a hard X-ray can be produced by a properly chosen single current spike in an electron bunch with simulation results. By using realistic specifications of an electron bunch of the Pohang Accelerator Laboratory X-ray Free-Electron Laser (PAL-XFEL), we show that an isolated, >1.0 TW and ~36 as X-ray pulse at 12.4 keV can be generated in an optimized-tapered undulator line. This result opens a new vista for current XFEL operation: the attosecond XFEL.

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Designing a bunch compressor chicane for a multi-TeV linear collider

Cited by 22 publications

References 4 publications

Maximum brightness of linac-driven electron beams in the presence of collective effects

Maximum brightness of linac-driven electron beams in the presence of collective effects

Emittance growth due to static and radiative space charge forces in an electron bunch compressor

Isolated terawatt attosecond hard X-ray pulse generated from single current spike

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