This article is from the Star Trek Tech FAQ, by Joshua Bell inexorabletash@hotmail.com with numerous contributions by others.
According to the TNG Tech Manual, the Enterprise hull sports emitter
array pads at various sites on its surface. They utilize "long-range
virtual-focus molecular imaging scanners" to handle remote disassembly
of the subject, and facilitate reassembly. The ACB is tightly focused
onto the target area from the ship. This is limited - in the TNG era,
40,000 km is the safe range for transport.
 
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