Analyzing #200
CsI detector
| Status: | Открыта | Start date: | 06/26/2018 | |
|---|---|---|---|---|
| Priority: | Нормальный | Due date: | ||
| Assignee: | Bogumił Zalewski | % Done: | 0% | |
| Category: | - | |||
| Target version: | - |
Description
The aim is to clean spectra, calibrate signals and prepare for analysis data from Left and Right CsI detectors
Subtasks
History
#1 Updated by Bogumił Zalewski over 6 years ago
- Tracker changed from Developing to Analyzing
- Assignee set to Bogumił Zalewski
#2 Updated by Bogumił Zalewski over 6 years ago
Data files:¶
Energy calibration of Left CsI detector will be performed based on alpha spectras from 226Ra source and two on-beam files. Alpha spectra taken from:
exolina3 : /media/data_nas/exp201805/data/calib/after/CsI_L0deg0001-3.lmd converted by 201805 go4 library and merged into one file
On-beam files taken from:
/media/data_nas/exp201803/data/calib/rootfiles/csi05_0001.lmd
/media/data_nas/exp201803/data/calib/rootfiles/csi05_0002.lmd
/media/data_nas/exp201803/data/calib/rootfiles/csi06_0001.lmd
/media/data_nas/exp201803/data/calib/rootfiles/csi06_0002.lmd
Converted by 201803 go4 library and merged: csi05_0001-2.lmd into CsI_L0.root and csi06_0001-2.lmd into CsI_L1.root
Basic filters:¶
Files were initially cleaned based on 4 cuts:
1. QDC amplitude from ToF detectors is bigger than 0 - crucial for graphical cutting particles from ID plot later.
2. Correct tracking - one cluster per MWPC (size 1 or bigger).
3. ToF range from 100 ns to 200 ns based on ToF constant = 89.165
4. Difference between TDCs of same detector from -50 up to 50 channels.
Intinial calibration:¶
Time signals were put into nanosecond scale by multiplying ToF signals by 0.125 and dividing MWPC signals by 3.4133
Si detectors were calculated with files... /* Soon to be */