1. Mary-Cruz Fouz CIEMAT-Madrid Muon Week Bologna Apr03 Madrid Status Report

2. COMPLETED CERNCIEMAT SLs tested SLs being tested SLs mechanically assembled SLs being assembled #1 to #24 #25#26#27 #28 #29 #30 #31 Chamber construction Status CHAMBER Serial Number

3. Superlayers Chambers Production Rate

4. SL QC-TESTS

6. CHAMBER 12345678910111213141516171819 Positive or Negative ++++++++--------+++ To be recycled (consider it as Spare) X RPC pads to be glued XXXXXXXXXX Big leaks X Bad HV Boards (16 Ch) XXXXXX ??? HC gluing mistake X MB2 Chambers at CERN (last CMS Week - Feb 2003)

7. CHAMBER 123456789101112131415161718192021222324 Positive or Negative ++++++++--------++++++++ To be recycled (consider it as Spare) X RPC pads to be glued X Big leaks X Bad HV Boards (16 Ch) XXXXXX ??? HC gluing mistake X MB2 Chambers at CERN (April 2003)

8. MB2 Chambers at CERN 5 more MB2 Chambers (20–24) since 5th March Tested at CERN (HV) from 6th to 16th March and all found O.K, except one sparking strip (chamber 23). Strip and Wire disconnected, now all O.K A new mobile stand-alone chamber testing system setup at ISR: HV: CAEN SY127 for test 1 SL. (Current Resolution:10nA) DAQ: One V767 TDC for test 1/2SL. TestPulse + Noise It should be improved at the near future. CIEMAT Tecnicians spent several days at ISR for gluing RPC pads Replacement of HVB’s in chambers 7,8,9,11,12,13 Depending on availability of boards and manpower Chambers with pending HV problems at March 1 st to be fixed 3,4,10,12,15 Chamber 10 repaired on March Problems due to HVBoards. 3HVB(1 per SL)  new ones (yellow type first batch)

9. 5 MB2 + & 2 MB4/10YB+2 5 MB2 + & 2 MB4/10YB+1 2 MB2 - YB-1 TOTAL 10 MB2+(Serial numb. 17,18,19,20,21,22,23,24,25,26) 4 MB4/10  To be made 2 MB2-(Serial numb. 10,16) Next Chambers to be produced at CIEMAT: (expected to arrive at CERN before the end of 2003) MB2- : 27,28,29 (for YB0) MB4/10: 30,31,32,33,34,35(Need HC panels) MB2+: 36,37,38,39 First shipment in 2004 MB2- : 40,41,42,43,44 (to complete YB0 and YB-2) MB2 Chambers needed for installation in 2003