Sunday, December 18, 2011

TEPCO Apparently Covering More Cameras With Nalgene Radiation Shields

We previously have pointed out that TEPCO has apparently modified their WebCam with Nalgene radiation shields; we have also seen some evidence that they are also using Nalgene shields to take their plant videos. The glare lines in the following screen shot of TEPCO's 12/14/11 video shows the glare associated with that kind of shielding.

As discussed in our prior post on the subject, CCD / CMOS cameras are sensitive to radiation. The two videos below will give you some idea of that sensitivity. The videos were created by a group that has created a Smart Phone application that uses the phone's camera as a radiation detector.

If you are interested in the "Radioactivity Counter Rolf-Dieter Klein" application, it costs $4.99 and you can find it here. The POTRBLOG team has not tried the APP, nor are we in any way affiliated with it; but it does look interesting. The video below shows the level of effort required to calibrate the APP on your phone.

1 comment:

  1. Just a quick FYI regarding these flares.
    Sure the older SW facing tepco cam has probably had nalgene since day one as there was always a similar blur line higher up at crane boom height (I investigated this on fukushima megathread).
    The flare you show in that photo looks exactly like a CCD flare. CCD is different to CMOS however they both see only infrared light, using different methods to convert to colour.