Minutes of Quick Calorimetry Meeting   18-10-96.


Present: RMB, DJAC, BWK, ALL.


BWK   Started construction of Web page for CMS UK. So far only outlined
      for ECAL, will tell other collaborators. ECAL page will have minutes
      of group meetings, it was decided that these should be password
      protected. 
      Simulating high energy response of calorimeter. 
      Tried combining different cluster shapes simulations with tracker
      service material but no success in optimising this.
      Preparing these simulations for presentation at ECAL simulation
      meeting in November.


RMB   This week correcting documents for PPC presentation. Derek Imrie has
      elaborated on radiation damage work. Final version will be distributed.
      Communicated with Lesley Wellbourne at Daresbury with corrections
      to "Heart of CMS" article in CLRC Bulletin about APV 6 chip.
      Recommended "New Electronics" as a useful trade journal.
      Fauer looked at CMS constitution document and wanted insertion of an
      annex for possible expulsion of collaborators.
      Resources review board coming up, discussed with Michel on continuing
      CERN finance.
      Next week CERN for RRB.


PSF   Sheffield last week making glass. Also used thermogramametric analyser
      to look at mass change with heating of HfF4 samples.
      With JM HfF4 see moisture going off up to around 200degC then mass
      loss from water in crystals or hydroxides as temperature is raised
      further. The Russian HfF4 did not exhibit these losses.
      Tried X Ray analysis of ground HfF4 crystals, peak structure for
      JM and Russian sample is different, but looks similar after bakeout
      of JM sample. Bruce Forsyth produced X Ray data for HfF4 which fitted
      well with PSF data.
      Showed glass produced last week. With JM HfF4 glass showed reddish
      traces. Russian HfF4 glass looks good.
      Corrected JM HfF4 weight in mix to account for loss of volatiles as
      measured in tests, this gave perfect glass.
      Next week A/L, working on PhD.


ALL   Prepared order for stepper motor mods. to traversing table, cost is
      #5200 of which #2000 can come from test beam budget. RMB feels that
      the other #3200 should come from GEK as a request for this and other
      test beam upgrades.
      Prepared a note to GEK on required upgrades to test beam; traversing
      tables, options for beam profile hodoscope, and replacement PC with
      costings. DJAC to commmunicate these requests to GEK.
      Commissioned recirculator/cooler, works very well good temperature
      control and quiet running. Pressure 1.4bar, asked for 1bar, but no
      leaks.
      Test load traversing table to 50kg (max load on spec is 50lb).
      Deflections measured on 2 guide bars and lead screw thread, max
      deflection was 0.25mm and all returned on unloading. Speed in all
      drive directions was normal on full loading.
      More Hamamatsu quotes for multi anode PMT's, a new 16 channel linear
      device looks interesting and costs #1114 ex vat. Will check delivery.


DJAC  Gavin Davies came on Tuesday, showed test beam facilities and discussed
      what IC may do in collaboration with us.
      Distributed note on ACCOS machine for UK. Brunel and IC in a good
      position to push this effort.
      ACCOS machine would probably go to IC initially.
      Talked to Mike Edwards about leaving APD's 6 metres from the collector
      of the ISIS neutron irradiation facility for rates similar to LHC,
      this should be OK.
      Discussions with JC on electronics meeting at RAL in November.
      We will take over Minos equipment in Lab 7 when they have finished,
      Dave agreed this with Richard Cotton who also reports loss from
      Lab 7 of HP digital scope and printer. ALL aware of this and
      investigating.


Laurie Lintern  21-10-96.