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User name Fujii
Log entry time 20:40:35 on February 29,2000
Entry number 21914
This entry is a followup to: 21871
keyword=Errata and addena for HODO time resolution
In entry #21871, I wrote the HODO resolution as 400ps and 260ps.
But it should be divided by sqrt(2).
So the resolution is 400/sqrt(2)=280ps, and 260/sqrt(2)=180ps.
Other parameters I didn't write:
Gain : Pulse height for minimum ionizing paricle : 120mV at ADC input
(~100mV at PMT output)
Threshold : 75mV
Threshold is relatively high, but it's ok because the time resolution is good enogh
even without pulse height correction.