1025557

Back to Bern Bricks or OPERA

General Informations

- Brick: 25557 glued
- Event: 22989013
- Type: Muon

- Person: Tomoko
- Mic: 5
- camera exposure time: 1/value
- light level: 28715
- cutoff 0: 1500 or 1550
- cutoff 1: 1300 or 1350

TT prediction.

File:Event 25557 22989013 vtx org.gif

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Muon candidate was not found in CS. Other 2 tracks were confirmed in CS.

File:CS25557.gif

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These are the tracks confirmed in CS, but not found in the brick.

File:25557 Event22989013.gif

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- Analysis Follower of the OPERA Experiment

Summary

• ...

Prediction

Muon: X Y TX TY or MISSING -> take this value from the EventViwer (TT hits in detector)

Further Prediction

Loogbook

Start: 2008-

Glued brick. Z reference 160.

Difficult to scan and confirm the predictions in pl 57 because of the black spot (See "Problems and Infos").

The spot for pred 1: High fog. Nothing found by prediction scan, by eye.

The spot for pred 2: Too dark. Give up scanning, checking by eye.

Intercalibration between pl 57 and 56 worked. Scanning area was 1.2cm*1.2cm around (50000,32000) to avoid the black spot.

Nothing was found in pl 56 for both predictions.

End: 2008-

Problems and Infos

(1) black spots

Plate 57.

File:Plate57.JPG

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Plate 56.

File:Plate56.JPG

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Plate 01.

File:Plate01.JPG

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(2) damaged emulsion surface

plate 49 (bottom). micro tracks in cp.root.

File:B25557 p49 cp bott.gif

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plate 49 (top). micro tracks in cp.root.

File:B25557 p49 cp top.gif

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plate 49 (bottom). micro tracks in raw.root.

File:B25557 p49 raw bott.gif

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plate 49 (top). micro tracks in raw.root.

File:B25557 p49 raw top.gif

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