Quickcal 5 Mar 1999

              Minutes of Quick Calorimtery Meeting  5-3-99.


Present:   KWB, RMB, DJAC, PSF, BWK, ALL, MS.


RMB   Meeting with Peter Sharp to discuss R12 space for CMS.
      Reported on meeting with Photonis (ex Phillips), they are keen
      to produce VPT's.


MS    RS preamp connected up ready for VPT tests but 1.8T magnet not
      available at the moment due to maintenance of demin water system
      during ISIS shut down.
      Updating spreadsheet databases, will link to WEB, talked with 
      Bruce about this.
      Dave commented on requirement for 50 RS amps for magnet tests.
      Bob commented on report from Derek that ET tubes have a photocathode
      problem leading to low gain.

      Prototype VPT's received to date:

      Electron Tubes     12     1000 LPI
                          6     UV window
                          4     1500 LPI  UV window

      Hamamatsu           4 Standard, 1 UV window


BWK   Simulations with CMSIM on effects of material in HCAL/EECAL junction.
      Simulations at TDR and TDR + 3cm.
      Next week simulate with Jets rather than single photons.
      Fermilab visit soon.   

ALL   Ordered stepper motor system for 1.8T rig, this is the same system
      as our traversing table except for a better gearbox.
      Working on hardware for automatic beam line magnet control system.
      Andrew working on Labview for Beam line magnet control, for
      sequence control of 1.8T test rig and mechanics for this rig.
      Some linear collider work (vac system for cryo test rig).
      1.8T Magnet in R5.2 is unusable at the moment due to shut down
      of ISIS demin. water system, expected to take 2 weeks.

PSF   Measuring the transmission of glues, needed to investigate the
      transmission of an air-glass-glue-glass-air sandwich as a function
      of incident angle. Corrected for polarisation but not bi-refringence,
      probably insignificant as neither glues nor glass bi-refringent.
      As a test put values for a PWO-resin-glass sandwich into program.
      As long as the glue has a higher refractive index than the glass
      the coupling is good within a percent or so. We therefore dont need
      to look for a high refractive index glue.
      Will look into transmission, rad hardness and ageing of various glues.


KWB   Preparation for CMS recruitment interviews.


Laurie Lintern  11-3-99.