The PXS beam line:
operates with the in-house developed L1 Allegra. X-ray radiation is in the spectral range of 3–77 keV. Using an off-axis parabola, the laser beam is focused onto the continuously restoring solid-density target, enabling long-term 1 kHz operation of the beam line. The beam delivery chamber and the plasma interaction chamber are separated by an anti-reflection (AR)-coated quartz window to suppress contamination of the beam transport system by debris. Several diagnostics will be implemented in order to monitor the driving laser beam and the output X-ray radiation:
- An imaging system to monitor the position and spatial profile of the visible emission from the plasma plume (integral part of PXS)
- A focal spot imaging system to monitor the focusing of the attenuated driving laser beam (integral part of PXS)
- An X-ray spectrometer, consisting of an X-ray photodiode, an amplifier, and a digital pulse processor emission spectra measurement (integral part of PXS)
- On-shot spectrometer and ultra-fast photodiode to analyze the shot-to-shot stability and determine the flux as an online monitoring system (additional monitoring system)
The X-ray output port has three output Beryllium windows: two for user end stations and one for the X-ray emission monitor. Following end stations are deployed at the PXS beam line:
- Goniometer-based diffractometer including a Cu-Ka X-ray tube to provide CW X-ray pump beam and additional X-ray analysis
- Von Hamos X-ray absorption/emission spectrometer
Both end stations are complemented by single-photon counting (Dectris EIGER X 1M) and charge integrating (Princeton MTE 2048B, Andor iKON B-DD) X-ray detectors as well as scintillator-based photodiode arrays (Hamamatsu S-11866-128G-2).
Contacts:
Yelyzaveta Pulnova (yelyzaveta.pulnova@eli-beams.eu)
Tomáš Parkman (tomas.parkman@eli-beams.eu)
