Minutes of Quick Calorimetry Meeting  24-4-98.


Present:  RMB, DJAC, DCI, PWJ, BWK, ALL, BJS, MS. 


BJS   Components are arriving, front end stops from Bristol and two sets
      of ferrules for fibre optics - both fit.
      Crystals all checked in centre pocket of Alveola with a range of
      of 9 - 25mm from front. Wall thickness of alveola varies from
      0.4 up to 1mm so will use old alveola with wall thickness closer
      to spec. 0.2 - 0.4mm.
      Optical fibres delivered for back from Saclay, fibres do have a
      break.
      DJAC - Quality control to be discussed at ECal week.
      Assembly jig made with 3x3 alveola and crystal inserted into centre 
      pocket.
      DJAC added - Russian red LED pulsing OK (Tony Lodge), Saclay fibres  
      arrived with diffuser (9 fibres for MSC + 2fibres for calibration
      PN diodes. HV board ready end of this week.


RMB   Meeting with Ian Corbett, briefing for RRB.
      Survey of British firms who may be able to bid for CMS Magnet cryo.
      system.
      Raised change of format for CMS week with Collaboration board.
      Responded, with PWJ, to Cashmore review of projects 2005-2020.
      Attending (video conference) combined Management/Finance board
      meeting.
      CMS costings formally re-assessed, 475MCHF to 465MCHF and now down
      to 455MCHF. Staging of tracker defers 10MCHF beyond start time.
      

MS    Testing VPT's with 1.8T Magnet in R5.2. There apppears to be no
      consistent pattern between different VPT's on field vs output.
      Will re-test all RIE and Electron tubes - all good ones are now
      tested. Electron tubes VPT's suffer falling output if Anode-Dynode
      voltage is greater than 300V.
      Next week work on stability of tubes.


BWK   Set up macro for fitting VPT runs.
      Looking at End Cap/Barrel transition region.
      At TDR geometry radius sees the hole but ran simulations at
      -2 and +2cm. +2cm seals the hole.
     

DJAC  Reported on results of large boule production, results contained in
      his EMail.


Laurie Lintern  28-4-98.