Mo 24. Sep 21:41:46 CEST 2012

closeup of the sample region

For John Miao's experiment at our set-up at PETRA III, we have to prepare a very clean x-ray beam.
closeup of sample region
The sample is placed about 100 mm after the vacuum tank of the KB mirror system; so air scattering already happens before the x-ray beam can see the sample. To overcome this, we got two nice Tantalum apertures from Yukio Takahashi at Osaka university. They are only two millimetres in front of the sample; everything is very close.


Pilatus 6M
Also very close is the detector: We borrowed a Pilatus 6M from beamline P11; six million independent photon counters are placed just 400 millimetres away from the sample. Almost 100 kilograms bear against the optical table.


Pilatus 6M
The Pilatus can also be used as an ordinary mirror, allowing photographing around the corner. Otherwise, you have no chance to really see the set-up, since it is so full of motors and holders.

Posted by osti | Categories: Travelling, Photos, Physics