alt Hacker NewsSorry I thought you meant to leave the lid off.
That would probably work well with the lid on floor, bin over the top.
I work with an MR scanner. Bluetooth seems to work through the cage (or did on the previous scanner I used) and cellphone calls work though it fine as long as the door is just a tiny bit open.
It’s quite interesting to play with.
The cage drops signal 100db (well, that the spec it’s built to).
Rf leaks are the worst. You can run the scanner in a ‘detect rf’ mode to try find any leaks. They can be a pinhole, a faulty light, a poorly sealed escape hatch etc.
A bad one can take a very long time to find and it’s enormously expensive to do so.
As a geophysicist, I understand your problem. Pinholes, slit length and width, mesh size, etc will all factor into the suitability for use as a signal attenuator. It comes down to the wavelength of the energy that you're trying to block. Common millimeter or submillimeter wavelengths from ordinary consumer devices make it important to take a hard look at your shielding to identify any stray path opportunities. Transmission and reflection coefficients of the materials and the propagation medium, reflection paths, material density properties, etc. All these things will work with or conspire against you.