TOF0 calibration The resolution in a given pixel can be measured before the absolute time calibration (see the plot) The expected total resolution of the.

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Presentation transcript:

TOF0 calibration The resolution in a given pixel can be measured before the absolute time calibration (see the plot) The expected total resolution of the detector can be calculated by the formula, where σ i is the resolution in pixel I N i is the number of events in pixel i and N tot is the total number of event.

TOF0 calibration Measured total resolution – 52.3ps

Positron peak in the TOF spectrum is used to calibrate TOF1 TOF1calibration Expected resolution – 64.2ps Measured resolution – 68.1 ps Absolute time calibration in TOF1 is not so precise.

Particle trigger problem In the TDC boards : Ch0 – Particle Trigger Ch1 – Particle Trigger request. Enormous jitter in the generation of Particle Trigger (see the plot) We have to use Ch1 – Particle Trigger request.

Time of flight