High wavevector temporal speckle correlations at the Linac Coherent Light Source.
Opt Express
; 20(9): 9790-800, 2012 Apr 23.
Article
em En
| MEDLINE
| ID: mdl-22535072
ABSTRACT
We report on the feasibility of high wavevector temporal speckle correlation measurements at the world's first hard x-ray free electron laser, the Linac Coherent Light Source (LCLS). Due to the chaotic nature of LCLS, the spectral profile of the x-ray radiation fluctuates on a pulse-to-pulse basis. Its impact on the determination of the single shot speckle contrast in a wide angle x-ray scattering geometry is investigated by analyzing FEL power spectra that are simulated based on the nominal operational parameters of LCLS. Ultimately, a potential scheme to deliver a single-mode hard x-ray pulse is proposed by using a narrow bandpass crystal monochromator.
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Base de dados:
MEDLINE
Assunto principal:
Aceleradores de Partículas
/
Difração de Raios X
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos