- LSF ID
- 12041
- ORCID
- 0000-0002-2573-5738
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
- ORCID
- 0000-0003-4498-733X
- LSF ID
- 10438
- ORCID
- 0000-0003-3451-1979
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
- LSF ID
- 10443
- ORCID
- 0000-0003-2621-8000
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
- GND
- 1201039908
- LSF ID
- 10366
- ORCID
- 0000-0003-0324-3457
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
- GND
- 121993092X
- LSF ID
- 10402
- ORCID
- 0000-0001-5618-3879
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
- GND
- 172725364
- LSF ID
- 13459
- ORCID
- 0000-0002-7979-5357
- Sonstiges
- der Hochschule zugeordnete*r Autor*in
korrespondierende*r Autor*in
Abstract:
We present a table-top setup for femtosecond time-resolved X-ray diffraction based on a Cu K{\alpha} (8.05 keV) laser driven plasma X-ray source. Due to its modular design it provides high accessibility to its individual components (e.g. X-ray optics and sample environment). The K{\alpha}-yield of the source is optimized using a pre-pulse scheme. A magnifying multilayer X-ray mirror with Montel-Helios geometry is used to collect the emitted radiation, resulting in a quasi-collimated flux of more than 105 Cu K{\alpha} photons/pulse impinging on the sample under investigation at a repetition rate of 10 Hz. A gas ionization chamber detector is placed right after the X-ray mirror and used for normalization of the diffraction signals enabling the measurement of relative signal changes of less than 1% even at the given low repetition rate. Time-resolved diffraction experiments on laser-excited epitaxial Bi films serve as an example to demonstrate the capabilities of the set-up. The set-up can also be used for Debye-Scherrer type measurements on poly-crystalline samples.