Physics Demonstration was successfully performed at the Maker Faire May 19 & 20, 2007, San Mateo County Fairgrounds.
I demonstrated the gamma split in tandem. A rather large 50% background tested on site was subtracted, but it still surpassed chance by 120 times (I have better shielding in the lab).
In photo from left are Unquantum assistants Ron Seefred and R A Wolf. ER at right.