Those who are interested in such stuff may remember the industrial CT scan video of Li Ion batteries a few weeks ago. The detail/resolution was stunning to say the least. Wondering just how scaleable this technology is. I believe (so thus why I asking) this is the same technology used in airport, land border and sea port cargo scanning but how portable is or can the equipment be? I need to look into 2 vessels about 3 x 4 x 3 Meters without opening and any disassembly so would need fully portable machines.
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Industrial CT scanning
- Thread starter cannuck
- Start date
rlitman
Well-known member
I believe that CT scans are used on most airport checked luggage, but that's not what's used for carry on luggage. CT scans send the x-rays through the object being scanned to show the mass that the radiation has to travel through on that scan path (kind of like density). It's basically a 3D version of the black and white x-rays you'd get for a broken bone.
Airport carry on luggage belt scanners use x-ray fluorescence cameras. The shoot x-rays at the object and observe the reflection (so the beam and observer are on the same side of the object). Since the x-rays penetrate through the object, the reflections come from all parts of it, so they can still get an idea of what's inside, and the fluorescent spectrum also gives an idea of the chemical makeup of what's being observed. The limitation is that beyond a certain depth or density, there isn't much reflection returned, so that technology isn't good for what you're asking about (and that's why air cargo containers get CT scans instead).
The fixed customs CT installations at ports that scan trucks and sea shipping containers usually have a set of both horizontal and vertical beams (and matching imagers) working at different wavelengths. The mobile versions don't have an imager that can go underneath your object, so there's no overhead beam. Here's one from 12 years ago:
Airport carry on luggage belt scanners use x-ray fluorescence cameras. The shoot x-rays at the object and observe the reflection (so the beam and observer are on the same side of the object). Since the x-rays penetrate through the object, the reflections come from all parts of it, so they can still get an idea of what's inside, and the fluorescent spectrum also gives an idea of the chemical makeup of what's being observed. The limitation is that beyond a certain depth or density, there isn't much reflection returned, so that technology isn't good for what you're asking about (and that's why air cargo containers get CT scans instead).
The fixed customs CT installations at ports that scan trucks and sea shipping containers usually have a set of both horizontal and vertical beams (and matching imagers) working at different wavelengths. The mobile versions don't have an imager that can go underneath your object, so there's no overhead beam. Here's one from 12 years ago:
Motown
Well-known member
Nikon does the service in the Detroit area. My company has one, it was $1m. We use it for diag and checking parts to print. it's a very useful piece of equipment.
I need to look into 2 vessels about 3 x 4 x 3 Meters without opening and any disassembly so would need fully portable machines.
I've work d with multiple suppliers on 3D x-ray, but that was a much smaller envelope.
Where are your containers? Customs likely puts them through scanners, depending on what you're looking for...