MAX IV Laboratory



The MAX IV Laboratory, the successor of the MAX-lab national laboratory, includes both the operation of the present MAX I, II and III facilities (MAX-lab) as well as the construction of the new MAX IV facility in Lund, Sweden. The new facility will consist of a linac and two storage rings with 1.5 GeV and 3 GeV electron energy. The design of the 3 GeV storage ring uses a multibend achromats approach and it will be the first synchrotron using this new type of lattice. The 3 GeV ring will have exceptionally low emittance which will lead to an unprecedented brilliance for a synchrotron radiation source.


BioMAX will be one of the seven initial beamlines at the new facility. It will be a high-throughput macromolecular crystallography (MX) beamline. It will offer high brilliance, tunable (0.5–2.5 Å wavelength), monochromatic X-rays with state-of-the-art performance in terms of low beam-divergence (0.1 mrad), high X-ray flux (~1013 photons/s) and variable beam size (10–100 μm), allowing work with both small crystals and large biomolecular complexes with concomitantly large unit cells. BioMAX is designed to be flexible and serve a broad range of needs for the life science community.


At the current MAX II storage ring we operate two beamlines for macromolecular crystallography, I911-2 and -3. The I911-3 beamline is energy tunable in the range between 6.2 – 16.5 keV (0.75 – 2.0 Å). The experimental setup includes a MD2 microdiffractometer with a MK3 mini-kappa, on-axis sample viewing, three-click centring and an Xflash silicon drift diode fluorescence detector. Diffraction data are collected using a Marmosaic 225 detector. The fluorescence detector can be used both for fluorescence scans (scanning the incoming X-ray beam energy over the absorption edge of a particular element) and measuring fluorescence spectra to, for example, quickly identify elements in the crystal. The beamline has a CATS automatic sample changer with a capacity of 90 samples using standard EMBL/ESRF pucks. The CATS sample changer can also be used for screening crystallisation plates for diffracting crystals. An EMBL Grenoble-type humidity control device (HC1) is available on request for optimising the diffraction properties of crystals or test samples at room temperature.

I911-2 is a fixed wavelength beamline (1.04 Å) equipped with a MarDTB goniostat and a Mar165 CCD detector.  A suite of software packages is maintained for smooth data collection and analysis at the beamlines.

In addition, a small user laboratory including a crystallization facility is located within the current facility.


More general information on the MAX IV Laboratory can be found at, for specific information for BioMAX see and for the current MX beamlines .