This high flux beamline with a plane grating monochromator was designed especially for X-ray microscopy endstations. It is dedicated to X-ray microscopy applications and hosts the HZB X-ray microscope as a fixed endstation.
|Temperature range||100 K to room temperature|
|Pressure range||samples under vacuum|
|More details||XM - X-ray Microscopy|
|Source||U41 (planar undulator)|
|Monochromator||PGM1 equipped with a 800 l/mm (soft X-rays) & 2000 l/mm (tender X-rays)|
|Energy range||180 - 1800 eV (soft X-ray range) & 700 - 2800 eV (tender X-ray range)|
|Energy resolution||up to 10000|
|Flux||up to 4·1012 photons/sec @100 mA and 20 μm exit slit for cff = 2.25 directly after the exit slit|
|Divergence horizontal||photon energy dependent: 0.2 - 0.1 mrad|
|Divergence vertical||photon energy dependent: 0.66 - 0.25 mrad|
|Focus size (hor. x vert.)||220 µm in exit slit|
|User endstation||not possible|
|Distance Focus/last valve||- focus at exit slit position - mm|
|Height Focus/floor level||1417 mm|
|Phone||+49 30 8062 12110|
The optical design of the HZB full-field TXM (unchanged) at the new BESSY II undulator beamline U41-L06-PGM1 (section L06) allows high spectral resolution of up to E/ΔE = 10000, 25 nm (half-pitch) spatial resolution and field of views in the range of 10-15 µm. A plane grating monochromator with a 800 l/mm grating provides the necessary high photon flux and in addition an energy resolution high enough for NEXAFS applications. The X-ray condenser (ellipsoidal shaped capillary) illuminates the object while the high resolving zone plate objective forms the enlarged image onto the CCD.
This is a dedicated beamline for X-ray microscopy allowing nano-tomography and nano-spectroscopy (NEXAFS).