Transcript 16:00 Meeting

GLAST LAT Project
EM Tests, September 17, 2003
4:00 Meeting
Schedule
 Mini-Tower and EM CAL will be integrated on EM Single Bay on Thursday
Morning
 New version of TEM/TEM-PS (from Gunther) will be swapped in on
Monday
 Proposed shift schedule for characterizing CAL+TKR system before
swapping in the new TEM/TEM-PS
Thursday
12-8pm
Friday
8am-4pm
Friday
4pm-8pm
Saturday
8am-4pm
Saturday
4pm-8pm
Sunday
8am-4pm
Sunday
4pm-8pm
Larry
Larry
Larry
Hiro
Larry
Hiro
Larry
Hiro
Berrie
Elliott
Berrie
Elliott
Berrie
Gary
Johann
Johann
Johann
Xin
Brian
Johann
Johann
L. Wai
1
GLAST LAT Project
EM Tests, September 17, 2003
EM Test Status
Subsystem
Test Description
Req’d for
Data Taking
Status
TKR
New phasing error at level of 1 in 100000 events!
No
Tests being executed by H. Tajima and J. CohenTanugi
TKR
Bad Channel List and Data Mask
Yes
Johan is generating this; configuration files will
be controlled in new I&T directory structure
TKR
TACK delay optimization per layer – charge injection
occupancy vs TACK delay and vs threshold
No
Done for (12,12), (0,24) and (24,0) on all layers, 50
events per point.
TKR
Efficiency vs TACK delay and vs threshold – 5-layer cosmic
ray trigger
No
Done. 1000 events, layer by layer. Limit range of
TACK; step every 5 units.
TKR
Error vs threshold test – 6-layer trigger w/ TOT enabled
No
Need significantly higher statistics
CAL
Trigger with zero-suppression turned off
Yes
Charge injection works but cosmics fails; error
may be introduced in data transfer from VME
crate to PC; will install direct ethernet cable to
avoid SLAC LAN – problem solved!
CAL
Regular charge injection (4 channels at once) test with
different HE gain settings: gain = 0,8,9,10,11. (while LE gain
should be always nominal = 5)
No
Test executed by L. Wai during day shift
CAL
CAL Comprehensive Test Set
Yes
Tests being executed by L. Wai; configuration
files will be controlled in new I&T directory
structure
CAL
5-hr Cosmic Data Set
Yes
Data sets will be collected by L. Wai and J.
Panetta
I&T
Global TACK delay optimization for external scintillator
trigger- # hits vs delay
No
Done
L. Wai
2
GLAST LAT Project
EM Tests, September 17, 2003
Test Schedule
Day and
Shift
CAL Tests
CAL
Persons
TKR Tests
Tuesday
swing
CAL
comprehensive
test set
L. Wai
TACK delay H. Tajima / J.
studies
Cohen-Tanugi
Wednesday CAL cosmic
day
muon run; CAL
comprehensive
test set (cont.)
L. Wai
Bad
H. Tajima / J.
channels /
Cohen-Tanugi
TACK delay
studies
Wednesday CAL cosmic
swing
muon run
J. Panetta
TOT enable
error rate
study
Thursday
day
L. Wai
Integrate MiniTower and EM
CAL to EMSB
3
E. Bloom / L.
Wai