The Forward Tagger for batta/jlab/FT-cmmssng_aug12.pdf · PDF file Forward Tagger...
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Transcript of The Forward Tagger for batta/jlab/FT-cmmssng_aug12.pdf · PDF file Forward Tagger...
M.Battaglieri - INFN GEForward Tagger Commissioning plan
The Forward Tagger for CLAS12
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CLAS12!
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e-! Forward! Tagger!
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New system to detect electrons at small angle and perform quasi-real photo-production experiments
Calorimeter (FT-Cal) electron energy/momentum Photon energy (ν=E-E') Polarization ε-1 ≈1 + ν2/2EE’ PbWO4 crystals with APD/SiPM readout
Scintillation Hodoscope (FT-Hodo) veto for photons Scintillator tiles with WLS readout,…
Tracker (FT-Trck) electron angles Polarization scattering plane MicroMegas detectors
Moller Shield
Calorimeter
Tracker
Scin3lla3on Hodoscope
HTCC Moller cup
GEMC implementa.on
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
FT Commissioning plan
Contact persons ✴ FT-Cal: M.Battaglier, R. De Vita ✴ FT-Hodo: D. Watts ✴ FT-Trck: F.Sabatie, S.Procureur ✴ FT-SW: D.Weygand + all above
Commissioning plan 1) Quality assurance and system checkout 2) System checkout 3) Commissioning/Calibration with and w/o beam
Crystals
Light sensors
LED monitoring system
Cooling
Read-out electronics
Front-end electronics
Slow-controls
LED Monitoring
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
TEST # FT-Cal PbWO-II crystals
PbWO crystals Measure the physical/optical properties (size, light yield, decay time, light transmission, radiation hardness, …)
Special equipment The tests will be performed at the ACCOS facility at CERN
DAQ Configuration and Trigger The facility has all the necessary electronics/daq/trigger
Manpower and time needed The ACCOS facility tests 20 crystals at time, 100/day therefore we expect to operate the machine for 1 week, 2 people
Software for analysis of results ACCOS produces automatically the results
Computing resources No need of computer resources
Information to be saved in the database Some information will be saved in the DB: size, LY, light transmission, radiation hardness, decay time
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check TEST # FT-Cal PbWO-II crystals
ACCOS @ CERN
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
TEST # FT-Cal light sensors
Large Area APD Measure the properties of the light sensors at fixed T (visual inspection, gain%V, linearity, dark current, dead areas …)
Special equipment The tests will be performed in Genova using laser and LED sources
DAQ Configuration and Trigger The daq will be custom, optimize to the necessary tests
Manpower and time needed 3months, 1 person
Software for analysis of results Custom system
Computing resources No need of computer resources
Information to be saved in the database dG/dV, dG/dT, QE, dark current
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
ApdGainTB @ Genova
TEST # FT-Cal light sensors
Dark current
APD gain
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
TEST # FT-Cal fe electronics
Preamplifiers Measure the properties of preamplifiers for APD/SiPM readout: gain, output signal shape for reference pulse, noise and motherboard
Special equipment The tests will be performed in Orsay (and Genova) using local test bench
DAQ Configuration and Trigger NA
Manpower and time needed 1month, 1 person
Software for analysis of results NA
Computing resources NA
Information to be saved in the database Gain, Trise, Tfall, noise RMS
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
FT-Orsay preampTB @ Orsay
TEST # FT-Cal fe electronics
Signal shape
RMS noise
Linearity
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
TEST # FT-Cal cooling system
Thermal shield, FT-Cal vessel, chiller and pipes Test of cooling system including pipe and vessel tightness, T uniformity, cooling power
Special equipment The tests will be performed in Genova using local test bench DAQ Configuration and Trigger
NA Manpower and time needed
2 weeks, 1 person Software for analysis of results
NA Computing resources
NA Information to be saved in the database Temperatures should be store during data tacking
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
ChillerTB @ Genova
TEST # FT-Cal cooling system
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
TEST # FT-Cal RO electronics
fADC, splitters, discriminator, TDC Test of the whole RO chain from the preamp to the stored data: proper functioning of each board and channel: ADC and TDC conversion factors, charge/ time linearity, Discriminator minimum threshold
Special equipment The tests will be performed at JLab/Genova using the local electronic test benches
DAQ Configuration and Trigger ?
Manpower and time needed ?
Software for analysis of results NA
Computing resources NA
Information to be saved in the database ADC conversion function, TDC conversion function, Discriminator minimum threshold
TEST # FT-Cal Slow controls HV for light sensors bias and LV for preamps, motherboards
Test functionality of crates and boards and power/signals distribution Special equipment
The tests will be performed in Genova using the local electronic TB DAQ Configuration and Trigger
NA Manpower and time needed
1 week 1person Software for analysis of results
HV and LV monitoring system Computing resources
NA Information to be saved in the database
LV, dead channels
TEST # FT-Cal cables HV, LV, signal cables
Test of the functionality of all connection cables Special equipment
The tests will be performed in Genova using the local electronic TB DAQ Configuration and Trigger
NA Manpower and time needed
1 week 1person Software for analysis of results
NV Computing resources NA Information to be saved in the database: NA
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
CODA-12 @ Genova
TEST # FT-Cal RO electronics and slow controls
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
TEST # FT-Cal monitoring
LED system to monitor gain matching, linearity, light transmission Test of the functionality of the system, individual LED calibration, light output
Special equipment The tests will be performed in Genova using the local electronic test benches
DAQ Configuration and Trigger NA
Manpower and time needed 1 week 1person
Software for analysis of results Dedicated software to control the system and analyze the results that will be integrated in standard CLAS12 DAQ
Computing resources NA
Information to be saved in the database Individual LED light output
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
1) Quality assurance system check
LEDmonitoring @ Genova
TEST # FT-Cal monitoring
Forward Tagger Commissioning plan M.Battaglieri - INFN GE
2) System checkout (Genova and JLab)
TEST # FT-Cal checkout 1
Full checkout of the whole FT-Cal subsystem Test of the full assembled calorimeter: -
Vacuum tightness -
Cooling and T stability -
HV check for individual channels, LV check, cabling check -
Light transmission and signal output for individual channel using
the light monitoring system (presence of signal, linearity tests) -
Cross-talk between crystals
Special equipment The tests will be performed first in Genova and then repeated before installation in CLAS12
DAQ Configuration and Trigger DAQ bench test Genova / DAQ bench test JLab
Manpower and time needed 1 week 1person (x2) + space for JLab tests
Software for analysis of results Local CODA installation
Computing resources INFN-GE CODA setup for tests in Genova and JLab
Information to be saved in the database NA
TEST # FT-Cal checkout 2 – Cosmic rays
Full checkout of the FT-Cal using stand-alone cosmic ray setup
Measure the FT-Cal response to cosmic ray for (individually) -
gain matching -
absolute light output -
relative timing
Special equipment The tests will be performed first in Genova and then repeated before installation in CLAS12
DAQ Configuration and Trigger DAQ bench test Genova / DAQ bench test JLab
Manpower and time needed 1 week 1person (x2) + space for JLab tests
Software for analysis of results Local CODA installation + dedicated monitoring tools
Computing resources INFN-GE CODA setup for tests in Genova and JLab
Information to be saved in the database NA