WP10: TA5 – Trans-national Access to PETRAIII and FLASH at DESY
Provision of access to the following infrastructure(s): PETRAIII and FLASH at DESY
Description of the infrastructure
FLASH, the world’s first free-electron laser (FEL) for the soft X-ray range, offers femtosecond pulses with wavelengths in the fundamental from 60 – 4.1 nm in the water window. Since 2016, FLASH1 and FLASH2 are operated in parallel, making FLASH the first short-wavelength multi-user FEL facility. FLASH pioneered many techniques in FEL science, superconducting accelerator technology, electron and photon beam diagnostics as well as photon beamlines and user end stations. At FLASH1, 3 beamlines use the direct FEL pulses. BL1 offers the permanent end station CAMP with a KB optical system (spot size 5 x 7 μm2) and a multi-layer mirror based split-and-delay unit (SDU) for XUV-XUV pump-probe experiments. BL2 and BL3 provide a 20 μm spot or the unfocused beam of 3-8 mm diameter. BL2 offers a grazing-incidence mirror based SDU at 6-60 nm. At BL3, the FEL beam can be combined with intense THz radiation pulses for XUV-THz pump-probe techniques. At PG1 and PG2, a high-resolution plane grating (PG) monochromator provides a bandwidth narrower than the natural FLASH bandwidth of approx. 1%. PG1 offers a two-stage VUV-Raman spectrometer for high-resolution measurements close to Rayleigh line (DRAMA).
Two FLASH2 beamlines will start user operation in 2016. FL24 is optimized for short-wavelength applications with a KB bending mirror system (min. focal spot about 10 μm2) and from 2018 a SDU for 40-0.8 nm. FL26 hosts the REMI end station, a reaction microscope developed by MPIK Heidelberg. In the coming years, up to four additional beamlines will be developed and installed. All FLASH1 and FLASH2 beamlines have state of the art, often pulse resolved photon beam diagnostics and photon beam manipulation tools as well as optical laser facilities synchronized to FLASH for pump-probe experiments.
PETRAIII is a 3rd generation synchrotron radiation facility which delivers the most brilliant X-ray beams at high photon energies worldwide. Since 2014 PETRA III is fully operational with 14 undulator beamlines and >30 experimental stations. Of these, nine beamlines are operated by DESY and 2 by HZG. At present, PETRA III is being expanded by another eleven insertion device beamlines, the first two being operational by mid-2016. PETRA III users benefit from the high degree of coherence, the ability to focus down to nanometer dimensions and the extraordinary beam parameters at 100ps time resolution and energies >50keV as well as the excellent resolution in reciprocal space or photon energy at micrometer focussing. These features allow for experiments related to in-situ and in-operando processes (e.g. catalysis, growth of nanoparticles and functional materials, dynamics of soft/hard condensed matter) and geophysical and materials sciences. Life science projects are served at beamline P11.
|Name of the infrastructure (and
its installations, if applicable)
|PETRAIII and FLASH at DESY|
|Location of the infrastructure||Hamburg, GERMANY|
|Services currently offered by the infrastructure||All users will be supported related to
Modality of access & application procedure
|Modality of access||DESY run the portal DESY Online Office for Research with Photons (DOOR) which is used by users to submit proposals and to handle all administrative aspects of their experiments (Detailed information on all procedures are given here).
Calls for proposal:
Calls for proposals for PETRAIII and FLASH are published twice a year.
After internal feasibility check, the proposals are evaluated and ranked by the Project Review Panels, the beamtime is allocated according their ranking.
PETRAIII and Flash operation at DESY:
|Offered support||Users receive full support by DESY staff including
The DESY NanoLab is available for users with interest in nanometer sized applications providing them with access to i.e.
All DESY users have access to computing infrastructure, the data are stored at DESY and can be retrieved via WEB portal at any time.
More information about Trans-national Access funding by DESY for PETRAIII and FLASH you will find here.
|Outreach to new users||Beamline data sheets are also available on wayforlight.eu. Find more information on the infrastructure here:
The annual Photon Science User Meeting acts as a very successful exchange platform for experienced and new users.
DESY will contribute to “WP3 – NA2 – Dissemination & Training” and “WP4 – NA3 – European Light Sources for Industrial Innovation plus (ELSIIplus), respectively.
|Review procedure||All proposals submitted to DESY are evaluated and rated by one of 11 international Project Review Panels (PRPs), each consisting of up to 16 scientific experts. Beamtime is distributed according to this rating.|