MRS, TEST STAND, EXTRUDER NEWS Victor Rykalin

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MRS, TEST STAND, EXTRUDER NEWSVictor Rykalin

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MRS inside !

• 8 channels (2 spare) has been delivered from
  CPTA Moscow Russia.
• The needed documentation is in hands.
• The tests are on the way (at FNAL).
• After the new test stand set up at NICADD NIU the
  RD with MRS will be continued.

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MRS parameters
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Status of the new test stand.

• Two crates (NIM, CAMAC) and some of the necessary
  modules has been shipped to lab. 6 from PREP
  FNAL.
• The vital modules (ADC and GRIB controller ) are
  not available at FNAL at this time.
• FSU agreed to lend parts till the March of 2004.
• The person responsible for the new test stand has
  to proceed with material move request and so on.
• What kind of software are we going to use ?

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Current activity

• Extruder is up with 21 die (November 4 first
  run for the ME department after long
  interruption). Will be continued on Thursday. A
  new motor for the loader has been installed and
  tested. A new polymer coating of the hopper.
  Problem still exist.
• The PO for 1500 (Viscosity vs shear rate
  dependence measurements, first set) has been
  send.
• The meeting between Gary Teafoe, Mike Roman and
  ME department has been organized ( to clarify the
  set of measurements on the 21 cm die ).
• The comparative measurements of the BC 404, BC
  408, FNAL extrusion( Ru 106 and cosmic bulk
  measurements ) work is in progress. For this
  purpose I am using the NICADD made test stand.
• Working with Dmitry on photosensors.
• New (old) PMTsdividers have been spotted at
  lab.6 and tested. Two trigger counters have been
  assembled. There is a hope that patient (trigger)
  will be back to normal life.

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The problems and their curing.

• Nitrogen line
• Delay with ALICE tests (due to the 21 die
  running)
• a new hopper

• Talk to Jerry Blazey.
• To switch die as soon as possible and start with
  10 holes die without pins.
• The decision should be taken (FNAL or other
  vendor or NIU).

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A plan for the next two weeks.
? To make happy ME DEP. with all parameters they
need for the simulations. ? Proceed with
preliminary MRS tests at FNAL. ? ?1NIM paper
(proceed with some additional measurements of the
scintillator bulk). ? ?Probable run for the
ALICE.