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