Overview

Beam line 7-3 is the side station on the 20-pole 2-tesla wiggler beam line 7 dedicated to biological XAS, mainly for dilute metalloprotein solution studies. BL7-3 has a vertically-collimating pre-monochromator harmonic rejection mirror and a liquid nitrogen-cooled monochromator with two orientations of Si(220) crystals permanetly installed that can be interchanged remotely without warming or breaking vacuum. The beam line can be run with or without the mirror in the beam and has an operating range of 4.6-37keV.

BL 7-3 has a dedicated 30-element solid-state Ge detector and a dedicated liquid He flow cryostat.

SSRL description available here.