wg7 summary
DESCRIPTION
WG7 Summary. Yorgos Tsipolitis (NTUA). CALICE. 2011 TOTEM T2 Test Beam Plans. TB aim: Collect data for… 1. T2 optimization “Before the Long Shut Down”. 2. Triple GEM design optimization for forward regions & high luminosity (T2 optimization “During the Long Shut Down” and GEM RD). TOTEM. - PowerPoint PPT PresentationTRANSCRIPT
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WG7 Summary
Yorgos Tsipolitis (NTUA)
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CALICE
RD51 Collaboration Meeting CERN, April 2011
Yorgos Tsipolitis (NTUA) 2
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RD51 Collaboration Meeting CERN, April 2011
Yorgos Tsipolitis (NTUA) 3
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RD51 Collaboration Meeting CERN, April 2011
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2011 TOTEM T2 Test Beam Plans
TB aim: Collect data for…
• 1. T2 optimization “Before the Long Shut Down”.
• 2. Triple GEM design optimization for forward regions & high luminosity (T2 optimization “During the Long Shut Down” and GEM RD)
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TOTEM
inelel
tel
TOT
NN
dtdN
0
21
16
6
RP+T1+
T2+
T1-
T2-RP-
220m147m-220m -147m
14m
9m-9m
-14m
Elastically (or quasi)Scattered protons
Elastically (or quasi)Scattered protons
Inelastic
Events
Inelastic Events
IP5
CMS
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T2: a T2 limit with high luminosity
T2 Environment: Large amount of particles (primary and secondary) per collision.T2 Gain: High GAIN to be efficient in the actual configuration
The amplified charge collected by the foils will cause a voltage drop across the 10Mohm protection resistors.
In high intensity beams the current flowing in the foils can reach few A and the effect on the gain is not negligible. MANDATORY: reduce as much as we can the detector GAIN
Reduce Noise/Increase Signal.
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T2 optimization: Signal
Gas mixture studies:Actual mixture: Ar/CO2 70/30
• Migration to Ar/CO2/CF4 in a ratio optimized for the internal field configuration that we have. – Lab. Gain calibration Curves– Test Beam Efficiency and Timing Studies
Increase the Signal Lower the Gain(VFAT2 shaping time=22ns)
DETECTOR UNDER TEST : TOTEM T2 TRIPLE GEM
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2010 test beam: preliminary measurement with Ar/CO2/CF4
Preliminary measurement
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2011 TOTEM T2 TB Plans
• 1. T2 (as it is now) optimization (BLSD*) reduce the detector GAIN– Front end chip (Noise)– Gas mixture (Signal)
• 2. Triple GEM design optimization for forward regions & high luminosity– Gas mixture & fields & Internal structure (gaps ).– Readout Planes
(*) Before the Long Shut Down
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DHCAL THGEM
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2011 plans
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Jlab GEM Tracker
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Periods Overview
Period1From 10 JuneTo 16 June
Period3From 9 AugustTo 22 August
Period4From 10 OctoberTo 17 October
Period5From 17 OctoberTo 24 October
Period2From 27 JuneTo 5 July
SPS-H2
-Proto_II-CMS_timing_GEM
Needed:RD51 trackerVFAT+TURBO elect.RD51 DAQ pc+crateRD51 portable GAS system
SPS-H4(together with RD51)
-Proto_II-CMS_timing_GEM-Proto_III
Needed:RD51 trackerVFAT+TURBO elect.RD51 DAQ pc+crateRD51 portable GAS system
SPS-H4(together with RD51)
-Proto_II-CMS_timing_GEM-Proto_III-Proto VI (?)
Needed:RD51 trackerVFAT+TURBO elect.RD51 DAQ pc+crateRD51 portable GAS system
SPS-H4(together with GSI)
-Proto IV (?)
Needed:RD51 trackerVFAT+TURBO elect.RD51 DAQ pc+crateRD51 portable GAS system
SPS-H4(together with RD51)
-Proto IV (?)
Needed:RD51 trackerVFAT+TURBO elect.RD51 DAQ pc+crateRD51 portable GAS system
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North Area vacation resort!
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CMS_timing_GEM: Double mask 10x10cm2 1D readout (3/2/2/2);
256 channels
CMS_Proto_I: Single mask FULL_SIZE 1D readout (3/2/2/2); 1024 channels
CMS_Proto_II: Single mask FULL_SIZE 1D readout (3/1/2/1); 8192channels
CMS_Proto_III: Single Mask 10x10cm2 [N2] (3/1/2/1); 256 channels
CMS_Proto_VI: Single Mask FULL_SIZE 1D [N2] (3/1/2/1) 8192 channels21
Detector summaryDetector summary
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RUN = 175HV = 4.50 kVI = 738.90 uAThr = 40 Vu
η = 97.5%Position = P1
RUN = 37 – 181Thr = 40 Vu
Lat = 14Position = P1
CM
S/G
E1
1_e
ffici
ency
_p1
_09
01
20
11
CM
S/G
E1
1_S
pR
es_
p1
_09
01
20
11
Data-taking focused on different points along the GE1/1.Preliminary results show good performance.
GE1/1 Prototype in details: last TBGE1/1 Prototype in details: last TB
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CMS_Proto_I
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The Micromegas TPC prototype test setup at Saclay
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The new X-Y Micromegas readout board design
Based on MIMAC’s Saclay design modified and constructed by Rui’s lab at CERN
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MM-TPC
MM-TPC
T2K electronics
Inside Goliath
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pions seen by the MM-TPC during October 2011 RD51 test beam
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• The MM-TPC can function in muon beams and low intensity hadron beams
• Noise should be further reduced to be able to self trigger on pure events
• Intense tests of the different available data acquisition system are needed before we go back for further and more detailed beam tests.
• A very useful proof of principle has beam accomplished in last years October RD51 test.
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Test beam for 2011
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Test beam requests for 2011
• We have 9 groups that will participate in the 2011 RD51 Test Beams– 1st period : 3 groups– 2nd period : 6 groups– 3rd period : 9 groups
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Fringe magnetic field has been measured in several point in the area..
.. and in the corridor just outside
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Measurement Map
Point Half Current Maximum Current
1 0.0005 T 0.007 T
2 0.0004 T 0.010 T
3 0.0005 T 0.007 T
4 0.005 T 0.011 T
5 0.868 T 1.518 T
6 0.0003 T 0.006 T
7 0.0009 T 0.009 T
8 0.0004 T 0.008 T
9 0.0001 T 0.0001 T
10 0.0001 T 0.0011 T
11 0.0001 T 0.0004 T
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Changes at the Area
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Beam direction
Goliath magnet
Movable table
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New Cables
• New patch panels from control room to the area:– 36 connectors type SHV– 60 connectors type BNC– 10 connectors type Rj45– 5 connectors type Subd9– 2 connectors type Subd9 (Profibus)– 3 connectors type Burndy 12, 19 & 28
pins
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Period 1 (June 27th – July 5th)
GEM trackerCMS upgradeJlab GEM
Goliath
TSbeam
1 SPSgas lineAr/CH4 50/50
2 RD51gas lines:Ar/CO2 70/30
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Ar/CH4 50/50
2 sensors
1 RD51gas line:
Ar/CO2 70/30
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Organization
• It would be nice if each group has one contact person for the test beam since it facilitates the communication.
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Conclusion
• We are ready for one more year with lots of fun in H4
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