T0 detector since CR5

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T0 detector (since CR5)

• W. H. Trzaskaon behalf of T0 team

HIP, Department of PhysicsUniversity of
Jyväskylä, Finland
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Key events (since CR5)

• Mar 05 integration test
• May 05 electronics rev.
• Jun 05 detector PRR
• Aug 05 radiation hardness tests
• Nov 05 full chain readout test
• Feb 06 Electronics PRR
• Mar 06 comprehensive tests of the fully
  assembled T0-C

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Full chain readout testNovember 2005

• T0 time and amplitude digitized and stored with
  the latest version of TOF hardware (HPTDC)
• HV and laser attenuator under DCS
• CFD DCS prototype tested
• Next rounds of full chain tests
• Jan Moscow
• Feb/Mar Jyväskylä
• Mar/June CERN
• The final test 4 18 October 2006
• Beam, T0-C, full set of electronics, readout, DAQ

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Time resolution of a single PMT channel
Results from November 2005 full-chain readout
test at CERN
At high multiplicities the final T0 resolution
will be considerably better than that of a single
PMT
T0/V0 Shoebox works very well!
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T0 DCS HV Sub-system
-StandardPVSS Framework OPS
FSM -Customized user panel
The system was working well
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Transition from prototypes to VME modules went
smoothly
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NIM-LVDS module
VHDCI 68-pin to VHDCI 68-pin cable for connection
with TRM
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QTC (LED-CFD) test results
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Shoebox (Heidelberg Jyväskylä)
T0/V0 preamp
analog power
disc.
DAC
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T0/V0 Grounding Scheme(Commented by F. Formenti)
Floating P/A PS A1513B in SY1527 (Z04)
T0 HVPS 2 x A1733N in SY1527 (Z04)
V.Lyapin, 08/03/2006
12x 2 channels
10 V
10 V return
-10 V
-10 V return
10 V

• Remarks
• Connection between Shoebox amplifier and the
  Shoebox TRD digital part are the differential
  analog 100 Ohm line without common ground.
• 2. To prevent cross-talk between channels and
  degradation of time resolution as a result, all
  patch-panels should be made from insulator.

10 V return
-10 V
8 those cables (V0T0)
-10 V return
- - - - - - - -
SAFETY EARTH
GND (Z04)
T0/V0 HVPS Adapter box in Z04, 4U
3 cables x 37 wires (V0T0)
GND (Z04)
for next Shoebox
Jumpers
GND (Z04)
4 wires in cable
Door patch panel.
1 LVPS cable per 1 Shoebox
T0/V0 LVPS Distributing Box in Z04, 6U
60 m
T0/V0 HVPS Adapter box in 019, 4U
GND (O18)
?
T0 FEE
RES
O18 LVPS patch panel, 4U
GND (O18)
GND (O18)
25 m
GND (Constr.) (Muon Absorber)
Shoebox, 1 of 10
8 (V0) or 12 (T0) Preamps per Shoebox
A side 5 Shoeboxes
GND (T0-A support)
LVPS
TRD Trigger Digital part
Solid electrically
Shoebox patch panel ( INSULATOR!!! )
C side
T0-A 12 Cherenkov detectors
Absorber patch panel ( INSULATOR!!! )
HVPS
Anode
One of 12 Cherenkov detectors
To the next Cherenkov detectors
PMT base
GND (Muon Absorber)
A side
GND (T0-A support)
T0-C mechanics
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T0 milestones