Odds are they'll require all devices to go through the scanners, because officially, they cause no damage.

From the TSA's Packing Tips page:

TSA will screen any "Carry-on" baggage that will fit through the x-ray machine;

However, looking at that, there are a few points that some stuff could get damaged:

Don't put film in your checked baggage, as the screening equipment will damage it.

And they have a way around inspection by x-ray for those sensitive items:

Put all undeveloped film and cameras with film in your carry-on baggage. If your bag will pass through the X-ray machine more than five (5) times ask for a hand inspection to prevent damage.

So hand inspections are indeed possible.

Finally, IF by some horrible luck, you get something damaged, they have a page on how to handle this (claims etc). I link to TSA, but assume most screening organisations around the world will be similar.

Odds are they'll require all devices to go through the scanners, because officially, they cause no damage.

From the TSA's Packing Tips page:

TSA will screen any "Carry-on" baggage that will fit through the x-ray machine;

However, looking at that, there are a few points that some stuff could get damaged:

Don't put film in your checked baggage, as the screening equipment will damage it.

And they have a way around inspection by x-ray for those sensitive items:

Put all undeveloped film and cameras with film in your carry-on baggage. If your bag will pass through the X-ray machine more than five (5) times ask for a hand inspection to prevent damage.

So hand inspections are indeed possible.

Finally, IF by some horrible luck, you get something damaged, they have a page on how to handle this (claims etc). I link to TSA, but assume most screening organisations around the world will be similar.