


Components
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NTC
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Selected, irradiated, qualified by Wuppertal
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4000 ordered and on hand (Wuppertal)
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We have at least one reel of each of the expected final components:
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Being used to build v4 flex hybrid modules, which will be irradiated
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Also irradiating samples at CERN PS in August
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Plan is to qualify each batch of components by irradiation
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Final number of components not known at this time, but a very low
cost on module scale
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Continuing irradiation program at UOK has found no problems to date
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Most significant change we see at Pixel doses is a <20% reduction
in capacitance value
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Big job done well by students
universtiy of oklahoma, r. boyd, 18 july, 2002, us atlas, flex hybrids