Please have a look at the publication M. Sauppe et al., J. Synchrotron Rad. (2018). 25, 1517-1528 (https://doi.org/10.1107/S1600577518006094) for more information.

Beam monitors: YAG or MCP based; 2x GMD transparent beam position and pulse energy monitors (one before the gas attenuator and one behind); VLS: variable line space grating spectrometer to measure online the shot-to-shot SASE-FEL spectrum (optimized to reflect the FEL beam to the endstaion in 0th order); gas attenuator & several filters to suppress/enhance harmonics or attenuate the FEL beam; fast shutter to reduce rep. rate down to single pulses; optical alignment laser

1 * 10¹⁴ [ph/s] @ 100 [eV]

4 additional transport mirrors before KB focusing with two different coating (Nickel or Carbon) and a total transmission of ~48% or ~29% for photon energies below and above 250eV.

Long distance optical microscope for in-focus spatial overlap of FEL and optical laser beams using a Ce:YAG screen, as well as for sample positioning (resolution ~10µm)

Double-sided VMI spectrometer for simultaneous electron and ion measurements.
Wide angle scattering using large area, pnCCD photon detectors.

1 * 10^-9 [mbar]

pnCCD photon detector
VMI spectrometer

Yes

Amorphous, Gas, Other: nano-particles, single (bio-) particles and large viruses

User-provided sample injection/mounting required!

Large area, single photon sensitive, XUV and X-ray pixel detector (CCD, 10Hz)

CAMP can be equipped with two large-area (78 x 74 mm²), single-photon counting 1 Megapixel pnCCD detectors (75 x 75 µm² pixel size), which collect scattered and fluorescent photons with high quantum efficiency and an energy resolution of 40 to 200 eV between <100 eV and 25 keV at a frame read-out rate up to 200 Hz. A variable-sized gap/hole in the center of the first CCD allows the direct FEL beam (and a high-power pump-probe laser, if applicable) to pass through the detector, while the small-angle scattering signal within the area of the hole can be detected on the second CCD, which has a fixed-diameter hole for the direct FEL beam. Both pnCCD detectors can be removed individually if they are not needed in order to provide more flexibility inside the experimental chamber. The typical base pressure with pnCCDs is ~10^-7 to 10^-8 mbar.

X = 75 [um], Y = 75 [um]

X = 1024 [pixel], Y = 1024 [pixel]

Active

1 * 10² [photons/pixel]

Photon

Yes

Double-sided velocity map imaging (VMI) spectrometers for simultaneous electron and ion measurement

Optional double-sided electron and ion imaging spectrometers (time-of-flight, velocity map imaging (VMI), and COLTRIMS/‘reaction microscope’ spectrometers) are available to detect ions and/or electrons of up to a few hundred eV kinetic energy within the full 4pi solid angle, while its conical electrodes provide an unrestricted line-of-sight from the interaction region to the pnCCD detectors. The spectrometers use 80mm MCP detectors that can be operated with delay-line anodes for coincident, momentum-resolved single particle detection or with MCP/phosphor screen detectors that are read-out at 10 Hz by CCD cameras.

Yes

X = 1300 [pixel], Y = 900 [pixel]

Active

Image readout (at 10Hz) integrated into the FLASH DAQ system

Ion

Yes