the scan hardware, spec'd

The testing apparatus behind 155/157, given its technical footnote. The G.C./M.S. scan "uses particle-bombardment and a positive-ion read by a spectrometer" and is "the mid-range test of choice for corporations and athletic bodies." The junior body is subject to the same instrument that polices corporate employees — the athletic body governed by industrial-grade chemistry, its innocence a matter of positive-ion reads. This is the machine Hal has thirty days to beat.