Simplified schematics of the TGM beamline MIRHACLLE device showing the capillaries (in gray) and the vacuum vessels of the two-stage differential pumping system, also represented are the upstream M2 mirror, the photon beam direction, and the M3 mirror in the gas filter region.
Partial neon pressures at different regions of the TGM beamline as a function of the filter pressure, the curves are the theoretical predictions and the symbols are the corresponding measurements.
IRD AXUV100 photodiode current at the experimental station as a function of the photon energy, with the filter region filled with of neon (solid line) and without filtering gas (dashed line).
Photodiode current as a function of the neon filter pressure. The energy of the photon is set to in (a) and in (b), respectively, below and above the neon first ionization threshold.
Overall higher harmonics contamination as a function of the neon filter pressure.
L-alanine time of flight spectra with the ionizing radiation set to . The dashed line corresponds to the spectrum taken without the filter, the circles are the spectrum taken with the filter at a pressure of of neon, and the solid line is the one taken with a pressure of .
Total electron yield of L-alanine as a function of the photon energy using helium as the filtering gas at , neon at , and with no filtering gas.
Pictures showing the behavior of the photodiode current as a function of photon energy (a) and its first derivative (b) in the region around the neon first ionization threshold. The beamline slit aperture were set to .
Photon flux in the experimental chamber at for several slit apertures.
Energy resolution at as a function of the beamline slit aperture.
Article metrics loading...
Full text loading...