ISSN:
1662-9752
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
The future High Energy Materials Science Beamline HEMS at the new German highbrilliance synchrotron radiation storage ring PETRA III [1] will have a main energy of 120 keV, willbe fully tunable in the range of 50 to 300 keV, and will be optimized for sub-micrometer focusingwith Compound Refractive Lenses and Kirkpatrick-Baez Multilayer mirrors. Design andconstruction is the responsibility of the Research Center Geesthacht, GKSS, with approximately70 % of the beamtime being dedicated to Materials Research, the rest reserved for “general physics”experiments covered by DESY, Hamburg.Fundamental research will encompass metallurgy, physics and chemistry. For first experiments ininvestigating grain-grain-interactions a dedicated 3D-microstructure-mapper will be designed.Applied research for manufacturing process optimization will benefit from the high flux incombination with ultra-fast detector systems allowing complex and highly dynamic in-situ studiesof microstructural transformations. The beamline infrastructure will allow easy accommodation oflarge user provided equipment. Experiments targeting the industrial user community will be basedon well established techniques with standardised evaluation, allowing "full service" measurements.Environments for strain mapping [2] on large structural components up to 1 t will be provided aswell as automated investigations of large numbers of samples, e.g. for tomography and texturedetermination.The current design for the beamline (P07 in sector 5 of the future experimental hall) consists of anearly five meter in-vacuum undulator source (U19-5) optimized for high energies, a general opticshutch, an in-house test facility and three independent experimental hutches working alternately, plusadditional set-up and storage space for long-term experiments. HEMS should be operational inspring 2009 as one of the first beamlines running at PETRA III
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.571-572.261.pdf
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