run 22 pp 500 EMC timing
Here is the run 22 pp "500 GeV" EMC timing scan
information and intitial results:
[note: see .... for run 17 results/instructions]
from calscan runs
Tuesday,14 348
22348004, Physics -- TCD: 40-160 w/ 5 ns step
22348005, Physics -- TCD: 70-160 w/ 2 ns step
Wednesday,15 349
22349004, Physics -- TCD: 40-110 w/ 2 ns step
(Wed. scan specifically for ESMD whose HV was off on Tues.)
Summary of TCD settings;
run17 run 22
BTOW 120 124
ETOW 103 107
ESMD 62 70
(note: these have been implemented/checked by Jeff; not sure how
someone else can access/check in e.g., trig details as in the past).
BTOW details:
a) crate-by-crate (BTOW_timing_cbyc_2022.pdf); total (BTOW_calscan_2022.pdf)
from Oleg Tsai
b) crate-by-crate (22348005_btow_scan_0x01-f.png; 22348005_btow_scan_0x10-e.png)
from wwj --- these are from the more standard fitting procedure of the past manyyears)
0x01-f : average = 125 ns
0x10-e: average = 124 ns
(see plots for individual crate TCD best values)
ETOW details:
crate-by-crate ( 22348005_etow_scan_run22.png -- omit noisy crate #4)
best TCD value = 107 (106.6) ns [59% of 40-50% max to catch all indiv. chns]
ESMD details:
8 crate-by-crate files (6 crates in each) are ;
22349004_esmd_run22_64-69.png to 22349004_esmd_run22_106-111.png
best TCD value = 70 ns [-13 ns from average plateau edge to catch all indiv. chns]
-- wwj
- wwjacobs's blog
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