التفاصيل البيبلوغرافية
| العنوان: |
New X-ray free-electron laser architecture for generating high fluxes of longitudinally coherent 50 keV photons. |
| المؤلفون: |
Carlsten, Bruce E.1 bcarlsten@lanl.gov, Bishofberger, Kip A.1, Duffy, Leanne D.1, Heath, Cynthia E.1, Marksteiner, Quinn R.1, Nguyen, Dinh C.1, Ryne, Robert D.2, Russell, Steven J.1, Simakov, Evgenya I.1, Yampolsky, Nikolai A.1 |
| المصدر: |
Journal of Modern Optics. Sep2011, Vol. 58 Issue 16, p1374-1390. 17p. |
| مصطلحات موضوعية: |
FREE electron lasers, X-ray equipment, PHOTONS, COHERENCE (Optics), ELECTRON beams, NUMERICAL analysis, LIGHT sources |
| مستخلص: |
Materials science needs to study dynamic properties of high-Z materials lead to a unique and challenging set of requirements for future X-ray free-electron lasers (XFELs), with single-pulse fluxes of up to 1012 50 keV X-rays that are both transversely and longitudinally coherent. These parameters cannot be met through an extension of the beam and FEL technologies used at existing and currently planned X-ray FEL facilities. We describe a novel technique to achieve higher fluxes by reducing the transverse beam emittance of high bunch charges and another to achieve longitudinal coherency by pre-modulating the electron beam current before it reaches the undulator. These techniques are investigated numerically and analytically, and also hold potential for increasing performance and decreasing cost of soft X-ray FELs. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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