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At the BESSY II electron storage ring running by the Helmholtz Zentrum Berlin HZB a transmission soft X ray microscope TXM is operated very successfully for both tomographic imaging of cells [1,2] and for NEXAFS studies in materials science [3 5]. Here, we present the setup of a newly designed beamline Fig. 1 that will significantly enhance the performance of the HZB TXM. Faster data acquisition over the whole accessible photon energy range together with a possible extension into the tender X ray range is given. Furthermore, within the photon energy tuning range, two new important absorption edges, namely sulfur and phosphorus, will become accessible for element specific 3D imaging, in addition to those already available, e.g. at carbon, calcium, titanium and oxygen. Another advantage of this new beamline is that phase contrast X ray microscopy for thicker specimens will become possible in the tender X ray photon energy range |
