Beam line 14-3a, located on the downstream table in the BL14-3 hutch, is a bending magnet side station dedicated to x-ray imaging and micro x-ray absorption spectroscopy of biological, biomedical, materials, and geological samples. Most often used for data collection at the S K edge, BL14-3 is the only SSRL beam line capable of XAS at the P K edge. During imaging mode, a SIGRAY axially symmetric mirror system is used to achieve microfocus with a beam size of ~ 5 x 5 microns. BL14-3b is equipped with a 7-element Vortex silicon drift detector and ionization chambers for imaging. Sample positions are controlled with submicron accuracy by a Newport sample stage, inside a He environment. BL14-3b is ideal for obtaining elemental maps of small samples (about 20 microns to 25 mm) as well as performing spectroscopy on selected points in the sample (~ 5 x 5 microns).
