JRA3 Institute of Physics ASCR Prague

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JRA3Institute of Physics ASCR Prague

1. ECAL, VFCAL (V. Vrba)
2. HCAL (J. Cvach)
3. Exchange in NA2 (travels 8.5 k)

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Tasks in EUDET budget w/o overheads

• Si sensor development for ECAL, VFCAL
• Monitoring system for HCAL
• Consumables - 81.7 k
• Si sensor development production (34.6 k)
• VME test stand (25742 ), calibration electronics
  (16.5 k)
• computing (4.9 k)
• Personnel - 13 k for PhD students, young
  postdocs
• Travels 4 k
• Contribution from the Institute
• Permanent staff 67 ppm
• Travels (6.7 k)

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Si Sensors for ECAL (V. Vrba)

• Sensor ECAL prototype production
• 2006 in four production runs of Si pad sensors
  at ON Semiconductor we obtained 72 good fully
  tested wafers which have been integrated into
  ECAL prototype
• January-July 2006 wafers delivered to Ecole
  Polytechnique 7 ECAL layers equipped with ON
  Semiconductor wafers

• end of 2006 additional fabrication run at ON
  Semiconductor is planned to produce about 60
  wafers for the full instrumentation for 2007 test
  beam.

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I-V curves on pad arrays
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Reverse current long term stability
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Sensor testing _at_ Institute of Physics AS CR

• Test laboratory for measurement of Si sensors

Senzors from ON Semiconductor, Czech Republic

• EUDET tasks
• Design studies for finer granularity (5x5 mm2) of
  Si sensors are under way
• Possibility to use 6 wafers is also investigated

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HCAL - Calibration Monitoring Board system (I.
Polák)

• CMB provides
• calibrated UV flashes to the scintillator tiles
• optical feedback via PIN photodiode
• sensing of temperature at scintillator planes and
  on CMB
• connection via CANbus to the detector Slow
  Control
• monitoring of temperature, voltages,
• setting enable, amplitude, pulse width of each LED

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Calibration and monitoring board II

• Calibration monitoring board to deliver LED
  light
• dynamic range 0.5 100 MIP
• Functions
• LED control
• Amplitude (via DAQ, CANbus, standalone)
• Pulse width 5 ns ?
• Enable
• PIN diode readout
• Temp monitoring

• Measurement of nonlinearity
• LED intensity varied by DAQ
• Intensity measured by PIN
• Absolute calib from linear part

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Calibrating 18 SiPM with one LED
Gain calibration for a matrix of 18 SiPM
connected to the same LED
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HCAL plane
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VME stand durable equipment financed from the
EUDET project

• Replacement of old CAMAC and NIM modules
• Measurements of signals from photodetectors (PM,
  APD, )
• 9 pieces of APDs, Hamamatsu S 8664-s
• 12 bit QDC, 16 chan., V792N
• Controller V2718 connected by optical cable to PC
• Reading, control with Labview

• 4-channel power supply N472
• GPIB, serial bus
• Scope TDS 5104

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Stand is operational a EUDET milestone
Initialisation
QDC reading
Input buffer decoding

• Labview chart of signal processing LED ? 4 fibres
  read by APD QDC
• Ivo pulser V993 dual timer 1 kHz
• What we gained?
• Larger dynamic range 10bit?12bit QDC
• Sophisticated system (new, VME)
• Short term usage long term tests of CMB

Jan Smolík
Linearity dependence of 4 channels (APDs) to the
increase (Vcalib) of the LED light
J. Zálešák
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Future stand use

• Long term tests and better understanding of CMB
• Use a CMB board with (8 LED PIN diodes) 8
  APDs ? 16 QDC chan.

Calibration Monitoring Board
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Our immediate tasks in EUDET

• Production of Si wafers for ECAL module
  successfully integrated into the prototype and
  operated in the test beam
• Design studies for finer granularity (5x5 mm2) of
  Si sensors are under way
• Possibility of the use of 6 wafers is
  investigated
• Students and young physicist (Petr Mikes, Michal
  Marcisovsky, Pavel Ruzicka, Miroslav Havranek)
  are involved in the project activities
  participating in the laboratory sensor
  evaluation, test beam runs at DESY and CERN, data
  analysis, simulation etc. They also participate
  in regular collaboration meetings.
• HCAL calibration electronics
• 2006 40 (double) boards produced, 23 installed
  in the prototype, one half financed from EUDET
• Investigations of functionality and long term
  stability of CMB
• Participation in tests and data analysis

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Resources EUDET

• Main contribution from EUDET - consumables
• Upper table our JRA3 spending profile by tasks
• Lower table spending according to categories

year HCAL ECAL VFCAL
2006 12 k 6 k 2 k
2007 12 6 5
2008 14 7 5
2009 6,55 1,9 4,15
year Perm staff Temp staff Consum ables Travel Durable equipm Over-heads Total () Install ment
2006 3256 4308 15 356 4742 2860 6104 36 625 36 740
2007 8581
2008 8581
2009 5720
total 25742