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The MAJORANA DEMONSTRATOR is an array of point-contact Ge detectors
fabricated from Ge isotopically enriched to 88% in Ge-76 to search for
neutrinoless double beta decay. The processing of Ge for germanium detectors is
a well-known technology. However, because of the high cost of Ge enriched in
Ge-76, special procedures were required to maximize the yield of detector mass
and to minimize exposure to cosmic rays. These procedures include careful
accounting for the material; shielding it to reduce cosmogenic generation of
radioactive isotopes; and development of special reprocessing techniques for
contaminated solid germanium, shavings, grindings, acid etchant and cutting
fluids from detector fabrication. Processing procedures were developed that
resulted in a total yield in detector mass of 70%. However, none of the
acid-etch solution and only 50% of the cutting fluids from detector fabrication
were reprocessed. Had they been processed, the projections for the recovery
yield would be between 80 -- 85%. Maximizing yield is critical to justify a
possible future ton-scale experiment. A process for recovery of germanium from
the acid-etch solution was developed with yield of about 90%. All material was
shielded or stored underground whenever possible to minimize the formation of
Ge-68 by cosmic rays, which contributes background in the double-beta decay
region of interest and cannot be removed by zone refinement and crystal growth.
Formation of Ge-68 was reduced by a significant factor over that in natural
abundance detectors not protected from cosmic rays.