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Mitigation of CSR i...
Mitigation of CSR induced spectral broadening in EEHG FEL
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- Pop, Mihai (author)
- Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Curbis, Francesca (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Avancerade ljuskällor,LTH profilområden,LU profilområde: Ljus och material,Lunds universitets profilområden,MAX IV Laboratory,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,LTH Profile areas,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas
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- Werin, Sverker (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Avancerade ljuskällor,LTH profilområden,MAX IV Laboratory,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,LTH Profile areas,Faculty of Engineering, LTH
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- Allaria, Enrico (author)
- Elettra Sincrotrone Trieste
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(creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English 8 s.
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In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. - : Elsevier BV. - 0168-9002. ; 1048
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Abstract
Subject headings
Close
- Externally seeded schemes have offered a major leap in improving the longitudinal coherence of FELs in the EUV and soft X-ray range. The Echo Enabled Harmonic Generation (EEHG) technique creates bunching at wavelengths of a few nanometers in two stages of longitudinal phase space manipulation, each consisting of an energy modulator and a chicane. Compared to other seeding techniques, EEHG is less sensitive to electron beam phase space distortions occurring during acceleration and compression. However the strong chicane needed in the first stage makes the system vulnerable to Coherent Synchrotron Radiation (CSR), which imprints a long-wavelength energy modulation on the electron bunch after the EEHG process has been initiated. Coupled with the second dispersive section, this modulation creates a position dependent change in the final bunching wavelength. In this work we show that tailoring the second seed laser wavelength can successfully compensate for the varying energy profile induced by CSR.
Subject headings
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
Keyword
- CSR
- EEHG
- FEL
- Laser tailoring
- Optimization
Publication and Content Type
- art (subject category)
- ref (subject category)
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