Arrival of SED Machine (Painted) Barrels

To reduce scattered light the SED Machine optical barrels are painted a dark flat black. We searched high and low for some good black paint, and though there are many good options, for our particular case we use Avian Black-S. Avian Black-S is water based and thus can be sprayed using the standard painting tools found at Caltech's paint shop.

In addition to painting parts black, we designed a careful system of baffles to block stray light from hitting our detector.

(Black) SED Machine Collimator and Camera Barrels