Sacrificial tamper slows down sample explosion in FLASH diffraction experiments.
Phys Rev Lett
; 104(6): 064801, 2010 Feb 12.
Article
en En
| MEDLINE
| ID: mdl-20366823
Intense and ultrashort x-ray pulses from free-electron lasers open up the possibility for near-atomic resolution imaging without the need for crystallization. Such experiments require high photon fluences and pulses shorter than the time to destroy the sample. We describe results with a new femtosecond pump-probe diffraction technique employing coherent 0.1 keV x rays from the FLASH soft x-ray free-electron laser. We show that the lifetime of a nanostructured sample can be extended to several picoseconds by a tamper layer to dampen and quench the sample explosion, making <1 nm resolution imaging feasible.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Difracción de Rayos X
Idioma:
En
Revista:
Phys Rev Lett
Año:
2010
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos