User operation of TXM starts with the second semester 2017
The new designed PGM1 beamline for the TXM endstation at section L06 is under commissioning and uses again the undulator U41 which was moved from section L12 to L06. User operation will start with the 2017-II beamtime allocation period.
This beamline is dedicated to X-ray microscopy applications and hosts the X-ray microscope.
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 provides the high energy resolution. The X-ray condenser (ellipsoidal shaped capillary) illuminates the object while the high resolving zone plate objective forms the enlarged image onto the CCD.
Details about the TXM itself can be found in the list of stations under XM - X-ray microscopy.
|Energy range||250 - 1500 eV|
|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|
|Distance Focus/last valve||focus at exit slit position mm|
|Height Focus/floor level||1417 mm|
|Free photon beam available||no|
|Fixed end station||yes|
|Phone||+49 30 8062 12110|
This is a dedicated beamline for X-ray microscopy allowing nano-tomography and nano-spectroscopy.