When the camera is used in high radiation environments, the major gamma emission may be outside the FOV of the camera. In this case it is important that:

1. The operator is aware of the approximate location of the main emission;
2. The image inside the FOV is not affected by this external perturbation.

Compton cameras are superior to collimator based systems in such situation, because they can detect imaging radiation on 4pi.
On the compton cameras, our camera is specially suited for those situations because:

1. It is asymmetric and thus less sensitive to perturbations;
2. It has a good signal/noise ration. Thus it is possible to correctly image a source of intensity 1 inside the FOV with a source of intensity >10 outside the FOV.

Below are tests illustrating our claims:

1^st experiment – no source at 0° + 0,7MBq ²²Na source at 180° – We observe the ²²Na source behind the camera and some noise in front of the camera.

This experiment proves the exceptional sensitivity of the Temporal camera.

2nd experiment – a weak 0,03MBq ¹³⁷Cs source at 0° + 0,7MBq ²²Na source at 180° – We obtain a perfect image despite the strong perturbation.

3nd experiment – a weak 0,1MBq ²²Na source at 0° + 0,7MBq ²²Na source at 180° – We obtain the image with some noise, but the source is correctly reconstructed.

This experiment proves the capability of Temporal camera to observe the weak sources (>1:10 contrast) in the 0° sector even with strong perturbations behind.