MU DT Stato della costruzione e dei finanziamenti

MU DT Stato della costruzione e dei finanziamenti Gr 1 25/6/2002 f. gasparini Gr. 1 25/6/2002 1

SUMMARY Construction of SL is now at nominal rate Usual concern for availability of MINICRATES Production of SL reached the nominal rate Assembly of chambers behind schedule (recoverable) Concern with Honeycomb plates Assembly of Plates and beams on schedule Some problem with small and non structural parts (cables, fittings. . ) Delay in the production of R-Out and Trigger electronics And MINICRATES More room for installation in V 33 ISR Storage f. gasparini Gr. 1 25/6/2002 2

THE BARREL MU DRIFT CHAMBERS 4 concentric stations 60 chambers each (MB 4 70 ch. s) 680 SLs (MB 1, 2, 3: 3 SL each, MB 4 2 SL) 171. 732 wires Four assembly sites Aachen 60 MB 1 + 10 MB 1/4 CIEMAT 60 MB 2 + 10 MB 2/4 Padova 60 MB 3 + 10 MB 3/4 Torino 40 MB 4 (with two tables) f. gasparini Gr. 1 25/6/2002 (180+20 SL) ( 80 SL) 3

DT Chambers Production sharing 5 4 3 2 6 1 7 12 8 9 10 11 Aachen Madrid Padova Torino 12 chambers/wheel must be installed in SX because of lifting jigs f. gasparini Gr. 1 25/6/2002 4

42 mm S C g 13 mm s continuous lines represent electrodes a W b b/a ~. 65 dotted lines represent equipotential surfaces the position of the s equipotential depends on the cell geometry (i. e. on the strip width and on the wire radius) the presence of the grounded Al plates and beams between S and C makes the position of the g equipotential quite independent of the Voltages of s and c Vw-Vs determines the GAIN in the gas : the request of a gain of ~ 10^5 determines the position of the s equipotential to be ~ 2. 5 mm from the wire Vc ( and Vs) must generate in the region between c and g ( and between g and s ) an E field between 1 and 2 KV/cm to saturate the drift velocity f. gasparini Gr. 1 25/6/2002 5

THE DT CHAMBERS (X, Y VIEW) plates I-Beams 27 cm MB 1 2 3 MB 4 250 cm 200 ~ 400 cm HV& decoupl. Boards Pads for RPC suspension F-End Alignment LEDs/holders Suspension “scale” Suspension rails screwed to the yoke Honeycomb & integrated C-Beams f. gasparini Gr. 1 25/6/2002 6

f. gasparini Gr. 1 25/6/2002 7

DISPOSIZIONE DELLE SCHEDE NEI MINICRATES MB 1 (60) 168 cm MB 2 (60) 205 cm MB 3 (60) 205 MB 4 (30) 228 MB 4 (10) 228 (10) 140 (5) 168 (5) 205 (5) 140 (5) 168 f. gasparini Gr. 1 25/6/2002 TRB PHI TRB THETA C/SB ROB 8

assembled MB 3 in LNL/Padova and view of two assembly tables f. gasparini Gr. 1 25/6/2002 LHCC Comprehensive Review 10/2/01 CMS MUONS: Drift Tubes and Alignment 9 fabrizio

Assembled MB 1 Chamber and view of the Aachen assembly hall f. gasparini Gr. 1 25/6/2002 LHCC Comprehensive Review 10/2/01 CMS MUONS: Drift Tubes and Alignment 10 fabrizio

Assambled MB 3 and a view of the CIEMAT hall f. gasparini Gr. 1 25/6/2002 LHCC Comprehensive Review 10/2/01 CMS MUONS: Drift Tubes and Alignment 11 fabrizio

Parts needed to assemble end test one SL: 1) Aluminium plates with field elecrodes 2) Aluminium beams with cathode electrodes 3) Hcomb Panels (that house services) 4) HV Boards in the gas volume 5) Amplifiers on boards in the gas volume 1) 3400 plates (2040 double sided, 1360 single s. ) 370. 000 electrodes. Mass prod. in Dubna. Tools designed and commissioned by INFN Torino (330 plates prepared in To) 2) 171. 000 I-beams = 342. 000 cathodes mass prod. in IHEP Protvino. Tools designed and commissioned by INFN Bo (13. 000 beams assembled in Bo) C-beams H-Comb firm I-Beams firm Protvino Tools Bologna Tools Torino Al. Plates firm Dubna Aachen HVB, HVC HV Cables CIEMAT CERN Crimping blocks Wires corner blocks LNL Torino Gas covers profiles end plugs FE-boards IHEP Beijing Padova CIEMAT Aachen 3) produced by Hexcel 4) boards assembled in IHEP Beijing tools and jigs from INFN Padova 5) boards and chips by INFN Padova f. gasparini Gr. 1 25/6/2002 12

Dubna 1) : Tools shipped end of August 2001, Unloaded in Dubna Sept 20 Begin commissioning of the plant mid Oct. First usable plates mid November A peak production of 8. 6 plates/day was reached, the average since November 29 is 4. 6 plates/day a steady rate of 5. 5 plates/day was reached during the last months 5. 5 plates/day and 24 w. d. /month cover the need of four sites running at 2 ch/month 1 chamber/site >> 15 plates*3 +10 plates*2 = 65 two ch. /month >> 130 plates/month (130 plates/month)/(5. 5 plates/day) = 24 w. d. /month (The average number of faces per plate is 1. 6, so 5. 5 plates correspond to 8. 8 faces/day). New head mid July 15 days of double shifts planned in September f. gasparini Gr. 1 25/6/2002 13

Dubna 2) : Production and shipments from Dubna: (Jan. 16 Jan. 21 2 ch Aachen CIEMAT) done Feb. 18 Feb. 26 Mar. 4 Apr. 3 Apr. 29 May. 15 Jun. 24 4 ch 2 ch 4 ch 3 ch 9 ch 3 ch 10 ch 4 LNL 2 Aachen 4 CIEMAT 3 Aachen 5 LNL, 4 CIEMAT 3 Aachen 3 LNL, 3 Aachen, 4 CIEMAT done done? Total 35 ch 12 LNL, 11 Aachen, 12 CIEMAT f. gasparini Gr. 1 25/6/2002 14

DUBNA 3) : To cover the assembly of 14 chambers in the last part of the year 210 plates must be produced after mid June. At a rate of 5. 5 plates/day = 38 w. days = 1. 6 months This production could be finished by beginning of September Then Dubna will produce for chambers to be assembled in 2003 By the end of the year they should manage to prepare 396 plates and cover the need for three months of assembly at full speed. beginning of September Dubna will be three months in advance with respect to the assembly sites. f. gasparini Gr. 1 25/6/2002 15

I-Beams inventory 5 4 3 2 6 # I-beams # chambers 1 Aachen Madrid Padova Torino 10 632 716 812 X 60 X 40 400 484 9 X 10 732 8 580 12 7 X 10 11 TOTAL ~ 173. 520 ~ 694/chamber (694 X 4 sites) / 9 w. d. = 308 I-beams/day in average f. gasparini Gr. 1 25/6/2002 16

PROTVINO I-Beams production In Protvino: production going smoothly with two tables at >= 320/day (nominal max. 360/day) PLANNING to JULY The Nr of THETA SL gives ~ the number of buildable chambers. I-Beams available by end July cover the chamber production up to December 2002. f. gasparini Gr. 1 25/6/2002 17

PENSO CHE PER QUESTA IMPRESA SI DEBBA RENDERE AD ALBERTO , AMEDEO E COLLEGHI TUTTO L’ONORE POSSIBILE. f. gasparini Gr. 1 25/6/2002 18

The nominal assembly rate: (176 w. d. /year : 9 d/SL)/12 months = 1. 6 ch/month in average 14. 3 SL/quarter/site 20 ch /year/site Last figure from CIEMAT 4 chambers/10 weeks (15. 5 SL/quarter) Testing time follows the same rate In Padova the rate of 9 ~ 10 days per 3 SL is achieved for mechanical assembly and for SL training and testing. Some problems for test in Aachen Chamber assembly in Padova and Aachen behind schedule for local problems solved by end of may : ch. assembly does not interfere with SL assembly f. gasparini Gr. 1 25/6/2002 19

2000 N. of SL/4 er 15 2001 1 2 3 2002 4 1 2 3 4 1 Nominal rate 14. 3 SL/4 er/site 2 10 Aachen 5 CIEMAT Padova 1 Aachen, new tools, Short of plates Total CIEMAT Total Padova Total Aachen Total 41 expect. by Apr. 2002 32 /site 26 (Aa, CIEMAT, PD) 29 96 total expected 96 105 at may 31 f. gasparini Gr. 1 25/6/2002 LNL >1 month stop Short of plates at June 20. 1 SL did not pass the 100 mb test in May Prod. stop for tool impr. Rates for last SLs ~ 15 SL/4 er/site 20

DETAILS 1) Expected May 14 SL (mech) HV+FE tested SL cosmic test chambers Aachen 31 24 19 4 2 CIEMAT 46 36 36 36 11 Padova (June 20) 32 28 28 20 5 Torino commissioning dec. 02 11 chambers at CERN ISR (from CIEMAT) f. gasparini Gr. 1 25/6/2002 21

TOTAL Padova Aachen CIEMAT DUBNA 35 ch 12 11 12 Preseries(To) 22 6 6 10 Total 57 18 mid Oct DUBNA by Sept. 14 Ch. more 4 6 4 TOTAL end 2002 71 Ch 22 23 26 PADOVA 17 mid Sept 22 mid Oct 32 SL al 20/6 + 3 al 30/6 + 6 al 31/7 + 3 al 31/8 + 6 al 30/9 +3 al 15/10 = 53 SL ~ 18 ch. f. gasparini Gr. 1 25/6/2002 22

DT PLANNING years 01 02 03 04 05 MB 1/2/3 MB 4 22 60 18 60 20 8 SL 66 184 216 220 24 By end 2002 250 SL 84 chambers EXPECTED by end 2002 SL Chambers 55 + 164 = 219 70 (27 Ciemat, 22 Aa, 23 LNL, 1 To) 14 chambers behind schedule = 1. 5 months (4 assembly sites) but CMS V 33 gives us 6 months more f. gasparini Gr. 1 25/6/2002 23

1/02 1/04 1/03 1/0 5 100% Prod. Milestones (V. 31) 0 : begin mass prod. 1 : 35% at CERN 2 : 60% assembled 3 : 80% at CERN 4 : end ch. assembly Trial wheel 0 7/02 (31/8/03) * readiness wheel +2 28/2/04 4 1/06 end +2 3 +1, 0 30/5/05 * installation in wheels +2, -1, -2 install. in wheels 0 , +1 Install. Milestones (V. 31) 70% 60 MB 1/MB 2 +10 MB 4 40 MB 4 Wheel 0 * # of chambers needed for install. in SX 250 minicrates * 2 60 MB 3 +10 MB 4 70 ch. end 02 * # minicrates. for installation 1 End of SX installation 30/8/05 * Modified schedule to take into account V 33 * 10% 01 Readiness wheel -2 8/04 Begin mass production 9/ 01 02 f. gasparini Gr. 1 25/6/2002 03 04 05 24 06

AFTER TEST THE CHAMBERS ARE SHIPPED TO ISR STORAGE: Check for Gas tightness HV test Noise check Search for dead channels Measurement of relative position of Alignment forks wrt the reference blocks This gives also the relative position of t he three Sl (First measurements and commissioning of the bench in July) Installation of Minicrates Coupling with RPC Test of cooling Transportation to SX Long term test of a large number of Chambers is only feasible at ISR IN SX Planned to start in July/August Gas tightness Electronics functionality (HV test ) INSTALLATION IN THE YOKE Lack of people, HV and diagnostics f. gasparini Gr. 1 25/6/2002 25

concern: work load in the ISR storage in the sites during the chamber assembly one should install: 1) 2) 3) the RPC support pads (glued on one or two faces of chambers) HV /LV/ signal cabling Final gas and cooling fittings/piping 1) Pads will be available this week , chambers at ISR have no installed PADs (they must be glued at ISR on 11 ~ 15 chambers) 2) HV voltage cables will not be available before 6 ~ 8 months: delay due to unsolved integration problems. Conflicts in the Central Wheel between “Movable services” and DT HV patch panels. hopefully solved in June. But HV cables should be prepared in China…………. (70 chambers will be cabled at ISR…. ) 3) General cooling and gas piping has been defined only recently (piping of many (how many? ) chambers will be done at ISR 4) Minicrates will not be available before late spring 2003 and they will be installed and tested on the chambers at the ISR storage. f. gasparini Gr. 1 25/6/2002 26

Test and quality control: Construction follows a QA/QC Book (includes Plates and I-Beams etc. . ) Data are recorded in local files in the sites (as an ex. Single wire position wrt reference block, tension etc. . ) A “simple” sequence of data is made easily available to everybody to allow the cross check of the chamber quality. Reference block position: position /SL (4 blocks) Wire position : average value and sigma (FE +HV side)/SL number of wires > 100 micron < 500 (should be none) Wire tension: average value and sigma /SL Gas Tightness : 1 number /SL (decay time at +50 mbar) Wire Noise : average figure and sigma/SL at standard voltages (same wire gain) number of cells > 200 and >1000 Hz (or noise rate per wire) Cosmics test: average cell efficiency/SL average and sigma MT left and right /SL (precision of staggering) Disconnected cells : list and reasons for disconnected cell f. gasparini Gr. 1 25/6/2002 27

Disconnected cells are Noise MT (i. e. chamber resolution) Inefficiency Precision of staggering Precision of wires 1 ~ 2% < 100 Hz/wire (natural radiation ~ 30 Hz/wire) within specs (8 ~ 9 ns with cosmics) < 2 % (I-Beams thickness) 100 micron < 100 micron Mean time f. gasparini Gr. 1 25/6/2002 28

Installazione : Installazione delle gangway gia’ iniziata Inzio posa del piping del gas e del cooling Sett/Ott Inizio cablaggio elettrico delle ruote Nov/Dec Prima installazione delle CSC degli endcaps Prima finestra utile per installazione nel Barrel Nov. Febb. 2003 2 test di installazione nel barrel nel 2002 f. gasparini Gr. 1 25/6/2002 29

(Benettoni) Extension rails for DT+RPC 1 - Transport to CERN Several ancillary 2 - Test at ISR tools are needed 3 - Alignment calibration that are under 4 - Installation of RPC(s) design or 5 - Transport to P 5 construction 6 - Test at P 5 7 - Insertion in YB 8 - Test in YB (gas, cooling, HV) DT+RPC package Insertion test : 0 ne MB 2 ch in Jul. ~Aug. 02 Sector insertion : fall 2002 f. gasparini Gr. 1 25/6/2002 30

AIM OF INSTALLATION TESTS SUMMER TEST: one chamber only Understanding of the behavior of the prototype of installation tool And to have a credible estimate of the time needed for the installation FALL 02 test Installation of a full sector Cabling and piping Test of insertion and substitution of a minicrate However there will be no fully equipped minicrate available at the time chambers should be taken away, and back to ISR waiting for availability of full electronics f. gasparini Gr. 1 25/6/2002 31

3) electronics: electronics is sitting on the chambers in each chamber of one CMS sector : in the gas volume : F-End chips/boards & HV boards 32 F-End chips (2 Boards) feed: in the Minicrates : 4~6 ROB (Read Out Board) 128 wires 4 TDC (any of them can act as Master) => precise coordinates 4~6 TRB PHI(Trigger Board) 128 wires 32 BTI, 4 TRACO, 1 TSServer 2 TRB THETA housing BTIs only =>2 best MU in the Board (64 cm) ONE TS Board houses the TSMaster (two parts, any can act as master) => 2 best MU in the chamber Sector collector board in the 4 th station (now on the balcony) Front End Ro. B T D C TB B T T T R S I A S C O TSB C T o S n M t r DCS SECTOR Collector to the counting room C. Room f. gasparini Gr. 1 25/6/2002 32

Drift. Tubes Local-Trigger f. gasparini Gr. 1 25/6/2002 33

LHCC Comprehensive Review 10/2/01 CMS MUONS: Drift Tubes and Alignment B (TESLA) radial component Z fabrizio Z B (TESLA) longitudinal component Resolution and drift velocity in function of the B longitudinal component (parallel to the CMS PHI wires) f. gasparini Gr. 1 25/6/2002 34

Chamber performance in B (radial component) 56 55 54 53 Lorentz angle. 5 T ~ 10 deg 1 T ~ 22 deg 52 51 50 49 48 Test beam 2000 f. gasparini Gr. 1 25/6/2002 Cerrada et al. CMS Note 2001/041 35

Performance of BTI trigger chip in magnetic field (radial + longitudinal) Max. drift time ST*12. 5 nsec = 0 deg BW Bn BN . 05 . 16 . 21 . 26 . 31 . 19 . 38 . 56 . 77 . 96 1. 15 No correction for angle and B. Angle and B change along the wires and from wire to wire. Overlap, BTIn+1 BTI was tuned for angle and B=0 f. gasparini Gr. 1 25/6/2002 B (TESLA) Test beam 2000 Meneguzzo et al. CMS Note (submitted) 36

STATUS OF ASICS AND BOARDS 1) BTI: all available (55. 000) BTI modules: tender closed , contract signed 6 May 2002(tender closed at CERN in August 2001) production : 50 samples July, 300 October Hope to have 1000/month starting in December (12. 500 modules) TRACO: 10 samples positively tested in January 2002 , full lot (5500) delivered Trigger Boards: call for tender in Apr. 9. Offers by June 28 Approval from INFN July. Preserie (50 =~ 7 Minicrates) in Dec 2002 First batch (200) by April 2003, then 200 boards/month end Prod. Beginning 2004 (1500 boards) TEST ON 25 ns BUNCHED BEAM IN MAY 03 For first installation >= 38 Minicrates are needed And mass assembly can begin only in April 2003. f. gasparini Gr. 1 25/6/2002 37

STATUS OF ASICS AND BOARDS 2) TSS: production in April 2002 TDC (CERN MIC): chips from the engineering run available, irradiation test with 60 Me. V protons in Louvain passed, mass production ( 5500 chips) delayed because of problems in the voltage regulator New eng. run in Sept. Mass production Dec ~ Jan. R-out Boards : 30 samples produced and tested , full lot of 1500 will be produced in fall 2002 (after eng. run) and 2003. Control/Server Boards : One per MINCRATE. The Jitter of the TTC regulator (CERN) is too large for a safe operation of the ASICS. It should be improved : new chips available by Jan. 2003. No final CSBoard available before March 2003 f. gasparini Gr. 1 25/6/2002 38

01 01 * * * * * TDC Readout B. BTI TRACO BTIM TSS Trigger B. 01 01 02 02 03 03 * * * ** * * * Contr/Serv. B. * * * MINICRATE * * * * * Order * samples available * samples * production TSM f. gasparini Gr. 1 25/6/2002 39

1/02 1/04 1/03 1/0 5 100% Prod. Milestones (V. 31) 0 : begin mass prod. 1 : 35% at CERN 2 : 60% assembled 3 : 80% at CERN 4 : end ch. assembly Trial wheel 0 7/02 (31/8/03) * readiness wheel +2 28/2/04 4 1/06 end +2 3 +1, 0 30/5/05 * installation in wheels +2, -1, -2 install. in wheels 0 , +1 Install. Milestones (V. 31) 70% 60 MB 1/MB 2 +10 MB 4 40 MB 4 Wheel 0 * # of chambers needed for install. in SX 250 minicrates * 2 60 MB 3 +10 MB 4 70 ch. end 02 * # minicrates. for installation 1 End of SX installation 30/8/05 * Modified schedule to take into account V 33 * 10% 01 Readiness wheel -2 8/04 Begin mass production 9/ 01 02 f. gasparini Gr. 1 25/6/2002 03 04 05 40 06

DT milestones 2002 (INFN) 8 MB 3 a Padova per Maggio 5 in Giu. ma SL per 10 altre 8 per Ottobre si’ Linea a Torino in Settembre: Dicembre/Gennaio Assemblaggio primo Minicrate in Ott. Febb. /Apr. 2003 DT milestones 2003 (INFN) (proposta da discutere) Mantenere la produzione di camere a LNL Prime MB 4 a Torino Produzione minicrates Installazione nella ruota centrale f. gasparini Gr. 1 25/6/2002 1. 6/mese marzo 2003 giugno 2003 ottobre 2003 41

KCh. F 98 99 00 01 02 03 04 05 Payments and commitments updated to April 02 Real 4000 Committed Mo. U 15000 60% (71%) To be committed 6000 24% (29%) Missing 4000 16 % (19%) 3000 (missing funding (Extra cost 2000 INFN ( 8%) 11%) profile of Mo. U ‘ 98) 1000 98 99 00 01 02 f. gasparini 05 03 04 Gr. 1 25/6/2002 42

4000 ~ 4500 KCHF sono: 200 1830 400 630 100 660 60 Per parti delle camere (I-beams and plates and…) (I, G, S 2/1/1) Per HV supplies + cavi (costo tot. stimato 2830) (I, G) per HV chiesti nel 2003 (I) per LV supplies + cavi (costo tot. stimato 900) (G) Rout boards (S) Trigger (I) Sector collector board (I, G, S 2/1/1) ch. Control (I, G, S) 3980+ altro (gara TRB non conclusa, cavi e assemblaggio minicrates…incertezze su cablaggio ruote etc) Richiesti alle F. A. nel rapporto del funding tra f. gasparini Gr. 1 25/6/2002 I/G/S = 11. 1 / 4. 44 / 3. 05 43

Richieste CORE 2003 Totale circa (ripartizione tra Bo, Pd, To da definire) 1500 KCHF Costruzione camere 47 (small parts, patch panels) Produzione parti 121 (Dubna, Protvino) Trigger 473 (TRB 205 Contrl/Sboard/Master 117 BTIM 160) HV supplies, connettori 624 Strutture per installaz. 36 Manpower per sopra 45 Gas piping on chambers 110 Assemblaggio minicrates ? f. gasparini Gr. 1 25/6/2002 44

Possibili ritardi su: BTIM coperti da impegno gara TRB idem FEB to ROB 204 ass. 2002 Contr/Serv/etc 325 ass. 2002 sj contratto in ritardo gara in ritardo dettagli finali in corso (sblocco settembre) C’e’ un bisogno disperato di moduli HV nuovi (2002? ) soprattutto per test agli ISR (test accettazione e lunga durata) Assegnazioni INFN * 98 99 00 685 1714 2432 01 2471 02 2338 (IVA incl) Total funding 11 100 03 1500 tot 11 140 (IVA incl) * tabella Campana f. gasparini Gr. 1 25/6/2002 45