Difference between revisions of "EM background rate studies"
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Data sample: | Data sample: | ||
* beam photons (no interactions inside the cave) | * beam photons (no interactions inside the cave) | ||
| − | * collimator cave background (photon beam hallo | + | * collimator cave background (photon beam hallo, particles from the cave, ...) |
Subdetector rates (at least one hit in the subdetector) | Subdetector rates (at least one hit in the subdetector) | ||
| Line 12: | Line 12: | ||
*BCAL (Ecell > 20 MeV) 300 kHz 1+-1 kHz | *BCAL (Ecell > 20 MeV) 300 kHz 1+-1 kHz | ||
| + | |||
| + | [[Image:Fdc_rate2_10_08.jpg|thumb|center|Fig. 1. FDC rate]] | ||
| + | |||
| + | [[Image:Fdc_rate1_10_08.jpg|thumb|center|Fig. 2. FDC rate and occupancy.]] | ||
| + | |||
| + | [[Image:Cdc_rate_10_08.jpg|thumb|left|Fig. 3. CDC rate.]] | ||
| + | |||
| + | [[Image:Fcal_rate_10_08.jpg|thumb|left|Fig. 3. FCAL rate.]] | ||
Latest revision as of 13:04, 8 October 2008
Data sample:
- beam photons (no interactions inside the cave)
- collimator cave background (photon beam hallo, particles from the cave, ...)
Subdetector rates (at least one hit in the subdetector)
Beam background Cave Background
- TOF 35.9 MHz 36.8 kHz
- Start counter 1.86 MHz 1.67 kHz
- FCAL (Ecell > 30 MeV) 4.25 MHz 6.69 kHz
- BCAL (Ecell > 20 MeV) 300 kHz 1+-1 kHz
