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PhaseII discussion
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Europe/Zurich
1) ITK Power supply : Ming-Lee
- ATLAS wants the input voltage source and the output voltage source to
have separate grounding
- such commerical PS will be expensive, and only few channels per PS.
- Due to requireing of different groundings, it is not easy to have very precise
control of the output voltage. Most commerical product can get the precision to ~2%.
Ming-Lee aims to get to ~1-2% precision.
- Ming-Lee has some idea how to build such multi-channel PS
- plan to start buying component parts and put together a single channel prototype.
- Try to have a prototype in late April or early May
- We should have the next discussion then
- We should also give a presentation at the ITK PhaseII electronics meeting first
before we report at the ITK week in June (starting on June 26).
2) HGTD
- sensors
- Chih-Hsun mentioned CMS is also planning to have a timing detector and
both ATLAS and CMS may use the same sensor technology (LGAP)
- NCU and NTU groups may join in the sensor development
- maybe a good idea that Taiwan (AS+NCU+NTU) join together in the sensor development
for ATLAS and CMS
- Chih-hsun sent an email to Suen about this idea.
- optical link :
- Suen is collaborating with SMU about this. Not sure how both groups
will collaborate and what is the plan.
- simulation studies of pile up background
- Song-Ming has started on this, writing code to differentiate jets from
hard interactions and from pileup. There are samples produced with upto
pileup of 200 interactions per bunch crossing.
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