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The photon tagger will almost completely dominate the event size. With an average of 1MHz
per T-counter and 19 T-counters, we expect a 19MHz rate for the tagger. With a 10
TDC window, we expect 190 photons per event. The post-bremstrahlung electron will hit
1 T-counter and 1 2/3 E-counters on average. This translates to about 6.1MB/sec for
an event rate of 3kHz. For the same event rate, hycal will provide only about 1.2 MB/sec
assuming only 100 detectors pass sparsification per event on average.
David Lawrence
2003-11-11