Plans for the H8 system test: 2001/2002

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Plans for the H8 system test 2001/2002

• Goals for the 2001/2002 Test beam
• Beam layout
• Chamber Supports
• 2001 Schedule

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H8 System Test

• In H8 we should have a setup able to test all the
  aspects of our spectrometer from individual
  chambers to system aspects.
• Therefore we need
• A Test station (Individual chambers from BIS to
  BOS on rot.support)
• Provide R-T relation by autocalibration, measure
  resolution and chamber mechanical precision etc.
• A Barrel and End Cap Sectors
• Study system aspects
• alignement and DCS, DAQ, installation,
  groundings,
• common behaviour of Trigger and Tracking chambers
  etc.

One should not forget that at the end, all the
chambers has to fit and work together. For this
reason, the integration workshop next week is
of utmost importance, to ensure that we have a
first test before it is too late to make changes.
George Mikenberg
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Interested groups
MPI Will Send and set up one BOS chamber, will
partecipate in the data taking. Will partecipate
in the 2002 tests Roma-Pavia Will provide and
set up one BIL chamber, Large effort on DAQ-1,
Set up small area trigger and Tracker, will
partecipate in the data taking. LMU Will provide
Hodo trigger, but for this year will not
partecipate in the tests. Will be interested in
the 2002 tests. NIKHEF Will Provide chambers
this year and the following year. They are also
interested in the alignement. Frascati
Interested in testing one chamber this year,
expressed interest also on electronics and DAQ-1.
Greeks Interested in the test, probably will
provide a chamber but will contribute less in the
data taking. Dubna No chamber testing in 2001,
could provide some help for the running of the
2001 test. In 2002 interest in testing one
chamber in H8
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Beam Layout
End Cap Sector
Test Stand
New Counting room
Barrel Sector
Old Counting Room
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Test station Goals for 2001

• First Tests with beam tracks for the new
  Chambers complementary to cosmic set up.
• Check of the chamber performances (tracking
  resolution, efficiency, strobed noise level, Gas
  Distribution.)
• Check of the mechanical construction (wire
  position with respect with X-Tomo Results)
• Check of the new electronics
• Check of the new DAQ-1

Experimental requirements

• Trigger 1010 and Hodoscope (large area)
• External Tracker
• Different beam angles for autocalibration
  (rotating Support)

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Measurements
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Test station Layout
Modified Calypso Rotating Support Can
accommodate BIS, BIL, BOS chambers Dimensions Wid
th 400 cm Height475 cm Length180 cm
Trigger Hodoscope 60100 cm2
Small area trigger 1010 cm2
Tracker 2 coordinates angular resolution 2 mrad
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Rotating Support
Maximum weight450 Kg
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BOS Test

• The BOS chamber will be mounted on the rotating
  support.
• It should provide the RT-Relation to the Barrel
  Sector Chamber.
• Together with the Tracker should provide
  tracking to the other chambers.
• There will be a significative portion of the
  chamber equipped with electronics.
• The chamber could be set up in the H8 Area
  during August by MPI people and could be tested
  in the first week of September.
• Typical test
• Autocalibration Angular scan Dq 100 small area
  trigger 30 KEvts/run
• Autocalibration at large angles Angular scan Dq
  200 _at_ 300 small area trigger 30 KEvts/run
• T0, Noise, Chamber uniformity, Mechanical
  precision Large Area trigger 2 MEvts

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BIS Test

• The BIS chamber will be mounted on the rotating
  support.
• The chamber could be set up in the H8 Area in the
  second week of September by the Greek groups and
  could be tested in the third week of September.
• Typical test
• Autocalibration Angular scan Dq 100 small area
  trigger 30 KEvts/run
• Autocalibration at large angles Angular scan Dq
  200 _at_ 300 small area trigger 30 KEvts/run
• T0, Noise, Chamber uniformity, Mechanical
  precision Large Area trigger 2 MEvts

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Barrel Sector
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Barrel sector (2)
BIL chamber Rome Pavia Groups BML Frascati
Group BOL NIKHEF Group
Assume the chambers arrive at CERN fully equipped
with Gas distribution, faraday cage and few
mezanine boards installed. Install the chambers
on the DATCHA Rails during August, set up gas
connections, set up HV and LV connections, study
the grounding and noise conditions on few read
out channels. During September perform Data
Taking together with the test station chambers.
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Work to be Done 2001

• Infrastruct. Move counting room, Install new
  Gas system, Install DATCHA Rails,
  Modify Calypso rotating support, study
  interfaces between detectors and supports
• Detectors Install small area trigger, Recable
  Hodo Trigger, Recable and set up Tracker,
  Install Autocalibration Chambers, Install
  Sector chambers.
• DAQ Install DAQ-1 Hardware and Software
• Monitoring Implement monitoring task on DAQ-1
  system
• DCS Implement at least the DCS ambient
  parameters reading.
• Offline Implement the new data format decoding,
  
• and use data to test the calibration and
  tracking programs (e.g. CALIB).

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Work Schedule
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Goals for the Barrel Sector in 2002

• Install a full Barrel Sector 2 BIL , 2 BML and
  2 BOL chambers on DATCHA Rails, equippe the
  chambers with electronics.
• Install new Gas Sysytem with recirculation
• Install the full chamber DCS.
• Install alignement system and test it with
  tracks
• Install trigger stations together with BML and
  BOL, Study installation issues, working
  condition and interferences between the
  detectors.
• Install first level trigger prototype and test
  with tracks
• Complete the DAQ -1, RPC Read-Out, test of the
  first and high level triggers.

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Possible Beam Layout2002
20 GeV
50 GeV
Magnet
Full Barrel sector
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Why a Magnet?
Possibility to replace the test station with a
Magnet Beam angular spread for
Autocalibration. Test the alignement system with
different tracks angle needed to test alignement
in 3 dimensions. Need to use low momentum beams
Low rates?