|
|
MATERIALS SCIENCE BEAMLINE, ELETTRA TRIESTE - NEW INSTRUMENT FOR SURFACE SCIENCE
Vašina, R. ; Doležel, P. ; Vondráček, Martin ; Cháb, Vladimír ; Prince, K. C. ; Ressel, B.
The Materials Science Beamline is attached to a bending magnet at synchrotron Elettra Trieste, Italy. The tuning range is from 35 to 800 eV with calculated spectral resolving power E/delta E better than 4000 in the whole range. The optical elements consist of a toroidal prefocusing mirror, polarization aperture, entrance slit, plane pre-mirror, single plane grating (blazed), spherical mirror, exit slit and toroidal refocusing mirror. The plane grating is operated in the fixed focus mode with Cff = 2.4. Energy scanning is performed by rotation of the plane grating and simultaneous translation and rotation of the plane pre-mirror. In the first tests, a resolving power of at least 4000 has been achieved at energies of 400 eV. The calculated photon flux at the sample is compared with measured values. Various experimental chambers depending on experiments can be attached to the beamline (LEEM, ESCA).
|
host ::
RSS.