report ~first collision auau200gev @run10 kotaro kijima 2010/01/25 local lab meeting
TRANSCRIPT
3
Check
• Internal Q-scan & T-scan• Interlock system works fine
– N2 air flow – Temperature
• HV– HV modules works– Noise shape seems fine for all PMTs.
• Laser data– All raw PMTs shape for laser signal are fine.– We took laser data by DAQ.
Laser signal
Adc tdc0 tdc1
Q-scan
T-scan
Laser signal Laser signal Laser signal
5
Time in• Change MTM timing by v124(ch7)
– Fine Delay 132 → 116 (8ns)
• Time in at 12/28!!
ch1: BBC GTMch2: Discriminator output
~60ns
~68ns
Change delay
But, BBLL1 trigger has problem…Above figure is obtained by ZDCLL1 trigger
6
Online monitor
Trigger is ZDCLL1• BBLL1 has problem.• We can NOT take data
with BBLL1 trigger– prescale of BBLL1 set to
999999– LL1 expert is working
• Now, we are taking data with ZDCLL1 trigger.
• The missing plots on BBC monitor is due to BBCLL1.
• BBC is working fine!!
7
ADC distribution • Some PMT channels have overflow
– Same HV with Run9 – Fraction of overflow is less 0.1% (see attached file “hvopt_299055.pdf”)
100
4090[%]
entriesAllofNumber
overflowchoverSumFraction
ch0 ch8
8
PmtGain (pC/MIP)• Calibration have done (Run298917)
– Same HV with RUN9– Note: ZDCLL1 trigger events was used
• PmtGain@Run10 is typically 15% larger than @end of Run9– Large fluctuation
• Need new optimized HV for RUN10
@Run10@end of Run9
(Run10–Run9)/Run9 x100
ch0
9
Determination of HV
• Gain Curve was Obtained– For 6 settings
• -100, -50, 0, +25, +50, +75V
• Optimized HV was obtained– Inner ring :30pC/MIP HV– mid&outter: 40pC/MIP HV
ADC distribution
Gain curve
Determined Optimized HV
pC /
MIP
Used pC/MIP@Run10 as normalization point for blue curve
10
Operational HV RUN10 for +- field
(30, 40pC/MIP HV)• HV_BB_S-1 -1649.7• HV_BB_S-2 -1914.2• HV_BB_S-3 -1676.3• HV_BB_S-4 -2134.0• HV_BB_S-5 -2029.2• HV_BB_S-6 -1485.4• HV_BB_S-7 -1631.7• HV_BB_S-8 -1957.3
• HV_BB_N-1 -1603.1• HV_BB_N-2 -2400.0• HV_BB_N-3 -1716.2• HV_BB_N-4 -1868.6• HV_BB_N-5 -1529.9• HV_BB_N-6 -2250.4• HV_BB_N-7 -1901.1• HV_BB_N-8 -1700.1
•The operational HV was calculated by using pC/MIP obtained from #298917
•S3,S7,N3,N7(inner) are applied 30pC/MIP HV, others are applied 40pC/MIP HV.
•Valid 2009/12/31 06:45~, #299319~
11
Time table
New HV applied2009/12/31, 06:45~#RUN299319~
LUT update2010/01/01,20:36~#RUN299480~
DB update2010/01/01 Valid:2009/12/31, 06:45~
MTM timing turning1161122010/01/02, 20:07~#RUN299603~
MTM timing turning1321162009/12/28, 09:59~RUN298902~
BBLL1 fixed2009/12/31#RUN299317~
First Collision2009/12/27
TIME
Happy new year !!
13
FEM board problem
• 2010/01/08– Complete feed, LV
recycle could not solve
• 2010/01/09– IR access– exchange fuse on
FEM board• Fixed this problem
16
GTMGTM
LL1 Trigger System
1clock 前のデータ
2clock 前のデータ
3clock 前のデータ
(40-14)clock 前のデータ
40clock 前のデータ
41clock 前のデータ
:
:
::
Latency : 40beam clock (4.24s)
Level 1 delay: 14 beam clock
Level1 sync
clock
106ns
LL1GL1
GTM
LL1LL1write to
AMU
MTM
RH
IC B
ea
m c
lock
FEM
DCM
17
ADC distribution
ch26
ch121
Channels which have relatively larger fraction of overflow
Full range
Full range
18
Expected edge of ADC@new HV
• Maximum #MIP is obtained from Run298917– Weighted mean of top 0.5%
• I guess, weighted mean does not work well for the ch which have overflow.
ch8
red: pedestalBlue: weighted mean of top 0.5%
19
To do
• Need comments and suggestion!!– IF you need bbctree, location of tree is blow
• /direct/phenix+subsys+bbc/phnxbb/Y10DB/tmp/BbcCalib_298917 @rcf (sorry for inconvenience…)
• * still have not applied new HV. • to take data with new HV
– Check MIP & overflow
• After solved BBLL1 problem, I will do calibration again by using BBLL1 triggered event to obtain LUT and DB constants. ( I might also do timing tuning of MTM )
12/ 29
20
Status
• New HV is applied– MIP & overflow: within acceptable region
• LUT & DB is updated – Valid range
• DB: 2009/12/31, 06:45~ (#RUN299317~)• LUT: 2010/01/01, 20:36~ (#RUN299480~)
• BBLL1 problem fixed• Fine turning of MTM timing
– 116112 (Fine Delay)
2010/01/04
21
Operational HV RUN10 for zero-field
• HV_BB_S-1 -1591.8• HV_BB_S-2 -1832.5• HV_BB_S-3 -1618.8• HV_BB_S-4 -2037.8• HV_BB_S-5 -1936.9• HV_BB_S-6 -1482.5• HV_BB_S-7 -1569.7• HV_BB_S-8 -1880.6
• HV_BB_N-1 -1559.5• HV_BB_N-2 -2265.8• HV_BB_N-3 -1655.5• HV_BB_N-4 -1800.9• HV_BB_N-5 -1491.2• HV_BB_N-6 -2126.8• HV_BB_N-7 -1827.3• HV_BB_N-8 -1647.0