SCIENCE BRINGS NATIONS TOGETHER Calibration meeting

Thursday 16 Jul 2020, 11:00 → 12:10 Europe/Moscow

baikalgvd1 (vidyo)

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Meeting ID: baikalgvd1

 

 

1. Mark Shelepov presented intermediate results for initial in situ measurements of charge non-linearity.
They are similar to the results acquired in the lab. Only channels with 2 OMs below and 3 OMs above can be used for estimation. Saturation cure fitting in progress.

2. Anna Sirenko presented the current status of the time calibration crosscheck with atmospheric muons for 2020 data from cluster 1. dT distributions were acquired for the latest MC sample with stretched angular acceptance. While some channel pairs show remarkable similarity to MC, the shapes of experimental and MC distributions in many cases were considerably different. A different noise suppression algorithm is being applied.

3. The general approach to calibration tags was discussed:

•  Amplitude calibration will be ignored, for now.
•  Offsets and time calibration tables to be documented on baikal-docs.
•  Charge calibration will be acquired exclusively from DQM. DQM tag will be fixed for each calibration tag and documented on the charge calibration page.
•  Calibration tag will also provide a "user" channel mask. By default, it will allow all channels. Additional restrictions (due to changes hardware configuration and channel performance) will be applied after calibration.
•  Separate tags may be developed for online and offline processing.

11:00 → 11:20 Time calibration status

Speaker: Mark Shelepov (INR)

Ampl_calib.odp

11:20 → 11:40 2020 time calibration crosscheck with muons

Speaker: Anna Sirenko

160720.pdf

11:40 → 12:10 Current status

Speaker: Alexander Avrorin (INR RAS)

report.pdf