JRP CALL information
Supported By

European Commission

HZDR, Helmholtz Zentrum Dresden Rossendorf


The Rossendorf Beamline (ROBL at ESRF)
The IRE Alpha Labs (Institute of Resource Ecology at HZDR)

The Rossendorf Beamline (ROBL), located at the ESRF, Grenoble, France

The HZDR Institute of Radiochemistry operates an X-ray absorption spectroscopy (XAS) station specifically designed for radiochemical experiments at the European Synchrotron Radiation Facility (ESRF) in Grenoble, France. The objective of this Radiochemistry Station is the identification, structural characterization, and quantification of radionuclide species in a wide variety of matrices, ranging from alloys to liquids to environmental samples. Due to the high brilliance of the ESRF and the beamline's solid-state fluorescence detector, a lower detection limit of tens of ppm is achieved up to the actinide L1-edges, making this beamline specifically suited to study radionuclides in aqueous and nonaqueous solutions, colloids, micro-organisms and plants, soils and sediments, and other dilute systems.

Equipment

  • Monochromator to cover XAS K-edges from vanadium to iodine, and L-edges from iodine to californium (see Table Optics)
  • Ion chambers for transmission XAS
  • 13-element Ge solid state detector (Canberra) with digital signal processing for fluorescence XAS with high energy resolution and high count rate
  • Closed-cycle He cryostat ( sample temperature 20 K) with large exit window for fluorescence detection
  • Spectro-electrochemical cell for in-situ redox modifications
  • Automatized sample stage for up to 8 samples
  • Radiochemical safety system including a glove box
  • Permission to run actinides and other radionuclides (see non-exclusive list below) with an activity up to 185 MBq
  • A range of certified sample holders for radionuclide samples
  • AcXAS reference data base online

 

Access

  • Up to 21 days of inhouse beamtime are provided for collaborations between the HZDR and other partners within TALISMAN.
  • Each experiment must be discussed for technical feasibility and safety issues with the responsible beamline scientist before beamtime can be scheduled.
  • Sample preparation, transport of the samples to the ESRF and back home, and the experiment itself has to meet specific guidelines reinforced by the ESRF Safety Group.

For information about access requirements, please click here.

 

More information

http://www.hzdr.de/ROBL
http://www.esrf.fr/UsersAndScience/Experiments/CRG/BM20/

 

Contact

Andreas SCHEINOST

 

 

The IRE Alpha Labs, HZDR-IRE, Institute of Resource Ecology, Dresden, Germany

The goal of radioecological research at the Institute of Resource Ecology (HZDR-IRE) is the protection of people and the environment from the hazards caused by radioactive heavy metals, namely the actinides (Thorium, Uranium, Neptunium, Plutonium, Curium and Americium) in the geo- and biosphere.

Applications of the research fall into three major categories:

  • long-term safety assessment of nuclear waste disposal,
  • determimation of the environmental behavior of radioactive contaminations due to accidents,
  • development and validation of remediation measures to clean-up the legacy of uranium mining.

HZDR-IRE provides experimental and technical equipment for officially licensed working with radionuclides up to 5×109 Bq per nuclide. The institute utilizes a broad range of analytical methods; all of them installed in modern radiochemical laboratories with state-of-the-art equipment. Some S1-classified laboratories even allow the handling of genetically modified organisms in a radiochemical laboratory.

Actinide laboratorie

  • Actinide speciation by laser spectroscopy: Time-resolved laser fluorescence spectroscopy – TRLFS (lifetimes > 20 ns: U(VI), Cm; lifetimes < 20 ns: U(IV), Am, Organics), Cryo-TRLFS (sample cooling: 4 K), tunable nanosecond and femtosecond laser systems (λexcit.: 220–345 nm; 365–690 nm, 730–1,800 nm), detection range 300–1,500 nm, min. time resolution: picosecond range
  • Vibrational spectroscopy – FT-IR, FT-Raman (in situ ATR technique for sorption and speciation studies; wavelength range: 4,000–10 cm-1)
  • Confocal Laser Scanning Microscope (λexcit.: 350–650 nm)
  • UV-vis spectroscopy (long pass flow cell, max. path length: 2,500 mm)
  • Standard and inert gas glove boxes
  • Classical radioanalytical methods (a-, ß-, γ-spectroscopy / LSC)
  • ICP-mass spectrometry coupled to a glove box, ion chromatography, AAS
  • (Micro-)Calorimetry, Isothermal titration calorimetry
  • HPLC

 

 

 

For information about access requirements, please click here.

 

More information

www.hzdr.de

 

Contact person

Harald Foerstendorf
| foersten_at_hzdr.de

Andreas SCHEINOST

 

pf_accessinfosheet_robl.pdf pf_accessinfosheet_robl.pdf