Possible capture of Teller Light
If you use period (.) and comma (,) keys to navigate to frame 0000 in this (https://youtu.be/UTX-f8bn3Xk) LLNL-uploaded video of Hardtack-I Redwood, there is a blue-ish glow emanating from the very early and tiny fireball. I believe this is the camera inadvertently capturing the device’s Teller Light, which is nitrogen in the air glowing blue from the intense gamma flux during the nuclear reaction. This process is happens very very fast (within a few dozens of nanoseconds for the fusion secondary). That must mean that the shutter for this frame closed just at the right moment for the film not to be overwhelmed by the incandescent fireball produced by the x-rays, which would have followed in the next couple of microseconds. I screen-grabbed the frame, but it’s very dim.
If you use period (.) and comma (,) keys to navigate to frame 0000 in this (https://youtu.be/UTX-f8bn3Xk) LLNL-uploaded video of Hardtack-I Redwood, there is a blue-ish glow emanating from the very early and tiny fireball. I believe this is the camera inadvertently capturing the device’s Teller Light, which is nitrogen in the air glowing blue from the intense gamma flux during the nuclear reaction. This process is happens very very fast (within a few dozens of nanoseconds for the fusion secondary). That must mean that the shutter for this frame closed just at the right moment for the film not to be overwhelmed by the incandescent fireball produced by the x-rays, which would have followed in the next couple of microseconds. I screen-grabbed the frame, but it’s very dim.