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QUANTUM DLTtape HANDBOOK
10
10.1
DLTtape System Records Moments of Creation
CLEO is a 1,200 ton detection apparatus at the business end of the
half-mile-diameter linear accelerator buried beneath the athletic
fields at Cornell University in Ithaca,New York. CLEO’s 100,000
detectors surround the points where electrons and their anti-parti-
cles, positrons,collide and annihilate each other. The resulting
flash of energy unleashes new, sometimes exotic, matter.
CLEO captures a digital “snapshot”of each collision, which occur
at a rate of approximately one per second. This data is fed into an
Alpha workstation for preliminary reconstruction. The raw colli-
sion results are stored on DLTtape systems. Later, the results are
analyzed and each collision reconstructed more fully. These results
are stored on new DLTtape cartridges and used by scientists for
complex analyses.
DLTtape technology has played an important role in ensuring safe
storage of this information at Cornell’s Floyd R. Newman
Laboratory of Nuclear Studies (LNS). Every detail describing the
direction,identity, and momentum of the particles produced by
the collisions is stored on DLTtape cartridges.