•Second
of two identical grids fabricated by Thermo Electron Tecomet in Woburn,
MA.
•Finest,
high-aspect-ratio X-ray collimator ever made.
•Provides
modulation to X-ray energies in excess of 100 keV.
•Allows
imaging on HESSI with an angular resolution of 2 arcseconds.
•Picture
shows circular active area with fiducial and mounting features in
the integral
rim.
•Direction
of slits is revealed by the white bar at 45º resulting from light
transmitted
from below through the ~1º opening angle of each slit.