13 BMD

 

Technique

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13 BMD Tomography (CMT)  Microtomography : Typically monochromatic beam 10-65 keV, sometimes white beam to 100 keV. Maximum beam size is 50mm (1mrad).                                           Contact : Mark Rivers, rivers@cars.uchicago.edu.
13 BMD Diamond Anvil Cell (DAC) Diamond anvil cell diffraction and imaging : Typically run at 37 keV, but sometimes up to 70 keV. Maximum horizontal beam size of 5mm (0.1 mrad).                            Contact : Vitali Prakapenka, prakapenka@cars.uchicago.edu
13 BMD Multi-anvil Press (LVP)         Multi-anvil press diffraction and imaging : Typically run white beam energy dispersive diffraction with signal needed to 100 keV. Monochromatic diffraction and imaging at 65 keV. Maximum beam size 10 mm.     Contact : Yanbin Wang, wang@cars.uchicago.edu
13 BMD X-ray Absorption Fine Structure (XAFS)                                   Spectroscopy : Energy range 5 - 45 keV, beam size to 10mm.                        Contact : Matt Newville, newville@cars.uchicago.edu

Beamline Optics

The bending magnet fan is divided into two parts.   An outboard fan of 2.5 mrad feeds the 13-BM-D station, and an inboard fan of 1.5 mrad feeds the 13-BM-C station.   These fans are separated  by 1 mrad. The extreme inside and outside 0.5 mrad on each edge of the 6 mrad fan is not used.

The 13-BM-D beamline has a non-focusing Si <111> double crystal monochromator that covers the energy range from ~5 to 70 keV.  There is a 1 m long vertical focusing mirror in the 13-BM-B optics station.  This mirror is used for some experiments and removed for others.  There are small K/B mirrors that are placed on the experimental table in 13 BM-D.