Noise and Resolution Analysis in Particle Detector Data
Discover insights from noise occupancy and resolution analysis in particle detector data. Higher noise levels impact resolutions and hit efficiency, with implications for data quality and displacement findings.
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Presentation Transcript
MDC Data Check Wu Linghui 2016-12-21
Noise occupancy after T/Q match 2016.1.6 ~ 2016.3.19 Run 43646 ~ 45000, round09 Run 39355 ~ 42934, round08 Run 47467 ~ 47613, round10 2014.12.31 ~ 2015.6.8 2016.12.11 ~ 2016.12.19
Noise occupancy of T channel 2016.1.6 ~ 2016.3.19 Run 43646 ~ 45000, round09 Run 39355 ~ 42934, round08 Run 47467 ~ 47613, round10 2016.12.11 ~ 2016.12.19 2014.12.31 ~ 2015.6.8 Noise level of the inner chamber from T channel is much higher
Resolutions of run47543 Run47543 (Low noise occupancy) Resolutions are normal Spatial resolution: 120 m P=15.7MeV/c @2.1GeV/c Alignment: No big displacement
Layer by layer comparison (1) Calibration not finished Calibration samples are contaminated
Time distribution Run 47543, layer3 Run 47501, layer3 T channel T/Q match Low noise level 25ns Run 47501, layer3 T channel T (ns) T (ns)
Summary Noise level of the inner chamber from T channel is higher compared with old data. High noise occupancy causes bad resolutions and low hit efficiency. No big displacement is found. Shift of vertex in z is a little bigger.
