In this series run in Brooklyn, NY on February 10, 2014, the camera was manually triggered with the shutter left open for 1.5 seconds.

As with all works in Moment, the lamps are triggered by geiger counters reading ambient beta and gamma radiation. The duration of the pulse fed to illuminate the lamps is approximately .2 seconds. 

The window below is a movie of the same setup.

Following are the individual images. I recommend that you view them in full-screen or slideshow mode.

The physical prints are 8" x 10".