| TMAE chamber |
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| Excellent
performance: |
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| • | No
feed-back photons |
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| • | Stable
at high rates |
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| NIM A371 (1996) 289 |
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| Show-stopper for
HERA-B: ageing |
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| NIM A414
(1998) 170 |
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| Possible remedy:
heating in situ |
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| NIM A515
(2003) 302 |
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