The Powder Diffraction endstation consists of a heavy duty 3 circles diffractometer manufactured by Huber (Germany). The outer and middle circles support respectively the high_angular resolution Multi Analyzer Detection (MAD) setup and the high-throughput Position Sensitive Detector (PSD) MYTHEN. The inner circle is equipped with an Eulerian Cradle (512.1 model from Huber) on which all sample environments are mounted. An ALBA designed 4 capillaries holder can be used with either cryostream and hot blower.   

Sample environment and equipment available at ALBA for Powder Diffraction station can be retrieved from SAMPLE ENVIRONMENTS page.       

To integrate user supplied equipment and to verify availability of proposed sample environments, please contact beamline staff
To adapt mechanical pieces on the PD station, you can download the detailed drawing of the XYZ stage surface.
Note the distance from XYZ stage surface to the beam can not exceed 60 mm.

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Detectors

Data are processed inline using softwares developped/modified inhouse. Standard output file format is a 3 column ASCII file with 2Theta, Instensity, Estimated Standard Deviation, with up to 4 header lines starting with symbol #.

High-throughput 
Position Sensitive Detector MYTHEN

Energy Range 8 - 30 keV / / Typical angualr resolution 0.02° FWHM

6 Modules (Dectris/PSI Detectors group)
300 µm thick silicon sensors with 1280 strips with 50 µm pitch 
Sample-Sensor distance of 550 mm
Total covered angular range ~40˚ in 0.006° binned steps
ms time resolution

Full pattern acquisition :
              ms : 1 position / trigger mode
       1-5 sec : 1 position, ~40° range
    1-10 min : 6 positons, ~60° range
     ~40 min : 72 positions, ~130° range (PDF) 

High-angular resolution
Multi Anayzer Detection setup MAD

Energy Range 8 - 50 keV / Typical angualr resolution 0.005° FWHM

13 channels with either Si111/Si220 analyzer crystal
and YAP scintillator coupled to PhotoMultiplier
Channel separation 1.5˚
Analayzer crystals changed by manual  translation, Si220 used at high energy

Full pattern acquisition :
        typical scanning speed 1°/min with binned steps of 0.003°