VPT Acceptance, Sorting and Database Results

RIE data files

Data for CMS Database
summary-vpt.txt 12.9.2008, created by Dave Cockerill notes
Data columns in summary-vpt.txt as follows:
VPT,gain,qe,pg,Sig0Cal,SigCal,GridOffC,PKMissFrac,Status
format(2x,I5,7(2x,F10.2),2x,I5,/)

Entries:
VPT                Integer   Barcode number
SigCal             Real       RAL, pulse height at 1.8 Tesla, after calibration, in e/MeV
Sig0Cal           Real       RAL, pulse height at 0.0 Tesla, after calibration, in e/MeV
gain                 Real       RIE measured gain
qe                   Real       RIE measured quantum efficiency
pg                   Real       RIE product of qe*gain
GridOffC        Real       Visual inspection, grid offset
PKMissFrac   Real       Visual inspection, missing photocathode area
Status             Integer    RAL, accepted, rejected or not categorised yet

Summary-vpt.txt data set:
All 16601 VPTs produced at RIE
Plots of first 16101 tubes, RIE versus RAL data, for estimating response of last 500 VPTs  (16102-16601) pdf

 

Bruce's ntuples   Data in txt files
VPT,RIENum,SigCal,GridOffC,Status,itype,col
Status = 1 accepted, = 2 rejected
GridOffC = 0 OK, = 1 small, = 2 large
Bruce's VPT summary ntuple - 16101 entries 16.4.08 Resultant DJAC complete VPT list txt
Bruce's accepted VPT ntuple - 15009 entries 16.4.08 Resultant DJAC accepted VPT list txt
Bruce's rejected  VPT ntuple - 1092 entries 16.4.08 Resultant DJAC rejected VPT list txt
     
Etiennette's file of glued VPTs xls   4.3.08   
Etiennette's list of glued, but rejected VPTs txt   1.2.08   
Julian, sorting data xls 14.1.08  
Martin, VPTs out of range doc 19.2.08  
Martin, VPTs shipped to odd places xls 19.2.08  
Bruce, list of VPTs failing at 35 deg xls 4.3.08  

2008
RIE all 500 new tubes made in 2008: calculated yield at 1.8T/colour assignments, D Cockerill 23.6 txt
RIE 200 new tubes: calculated yield at 1.8T/colour assignments, D Cockerill 6.5 txt
Returned to CERN from RAL/Brunel, 21 tubes, D Cockerill 22.4 txt
Returned to CERN from UVa, 16 tubes (one - 13283 bad?) 22.4 txt
Arrived at UVa, after go/nogo tests at CERN,  first 100 new VPTs from RIE, 16102-16201, arrived 22.4
Returned to CERN from SPLIT - 15 VPTs (8 possibly OK, 7 not OK), A Marinov 22.4 doc
Filling the last 5 "purple" SCs, D Cockerill 21.4 ppt
Inconsistency list, accepted vs status field, J Williams 17.4 xls txt
Shipment of 121 VPTs to UVa (mainly discharges at large angles only), D Philipps 14.4  tray357  tray396
Old VPT cuts/new VPT cuts to optimise use of remaining VPT distribution, D Cockerill 5.2 ppt
Status glued VPT, E Auffray 5.2 txt xls
Failed VPTs at 1.8T, 694/16101, due to spike/discharge at angle, against RIE production number, B Kennedy 21.1 pdf
VPT type analysis, E Auffray 9.1 htm

2007
Leakage currents measured in reception tests at CERN, D Cockerill 23.11 pdf
Properties of off-set anode VPTs, D Cockerill 23.11 pdf

2000
VPT acceptance tests and handling procedures, D Imrie/D Cockerill rtf 10.4