us: llnl, ohio state, oregon, princeton, slac, ucsd · production of limited streamer tubes and...

IFR Barrel Upgrade: Overview, and LST Production

Readiness ReviewSLAC, May 5, 2004

Stewart Smith

INFN: Ferrara, Frascati, Genova, Padova, Roma, Torino

US: LLNL, Ohio State, Oregon, Princeton, SLAC, UCSD

May 5, 2004 Readiness Review 2

The LST TeamM. Andreotti, D. Bettoni, R. Calabrese†, V. Carassiti,

G. Cibinetto, A. Cotta Ramusino, E. Luppi, M. Negrini, L. PiemonteseFerrara University and INFN

P. Patteri, A ZalloLaboratori Nazionali di Frascati dell’INFN

R. Capra, M. Lo Vetere, S. Minatoli, S. Passaggio, C. Patrignani, E. RobuttiGenova University and INFN

C. Simani, D. Lange, C-S ChengLivermore National Laboratory

T. Allmendinger, K.K. Gan, K.Honscheid, H. Kagan, R. Kass, J.Morris,C. Rush, S.Smith, Q. Wong, M.Zoeller

Ohio State UniversityC. Fanin, M. Morandin, M. Posocco, M. Rotondo, R. Stroili, C. Voci

Padova University and INFNJ. Biesiada, G-L. Cavoto*, N. Danielson, R. Fernholz, Y. Lau, C. Lu, J. Olsen, W. Sands, A.J.S. Smith†, A. Telnov

Princeton UniversityZ Zhiang, C Chen

University of ColoradoR. Frey, M. Lu, N. Sinev, D. Strom, J. Strube, M Lu

University of OregonS. Morganti , G Piredda, C. Voena

Roma “La Sapienza”University and INFNH.P. Paar

University of California at San DiegoR. Boyce , R. Convery, C. Hast, P. Kim, J. Krebs , R. Messner, M. Olson , R. Schindler,

S Swain, Z. Szalata , T. Weber , W. Wisniewski, K. Yi, C. YoungStanford Linear Accelerator Center

Engineers† Contact persons* Also INFN Rome


Upgrade Overview

Production of Limited Streamer Tubes and ModulesTotal tube production (1350 tubes) will finish in Italy by May 31.All ~450 tubes needed for 2004 already tested at Factory, and shipped to Princeton and Ohio State for assembly into modules.

• Many problems diagnosed and solved high yield, good quality (90-95% are perfect as tested in USA).

• Comprehensive Q/C at PHT, Princeton, OSU has filtered out the few remaining bad guys before assembly into modules.

• We can repair most of these few defective tubes.• Aging tests: first damage at 0.4 C/cm

– 3 x layer 1 dose till 2010 –all other layers have much lower ratesAll modules needed for 2004 will be complete by end of May and shipped to SLAC shortly thereafter

• A module consists of 2 or 3 LST’s and their services (ground planes and transmission lines for Phi signals [built at SLAC], transition boards, etc.), ready for installation into BaBar.

• We now have >80 constructed. First 50 have been tested. Only 1 bad channel.


Overview, cont’d

Readout electronics, infrastructure Front end electronics tested at SLAC in April; complete production will arrive, already tested, in Ferrara next week.Crates and trigger boards in production.Readout strips for Z coordinates under construction at SLAC.First HV Crates built at Ohio State, now under test.

Installation Preparations almost complete for installation in Aug/Sept of brass and detectors for 2 sextants.Schedule is very tight but doable.Issues for 2005 installation are understood – detailed development will resume in November.

Bottom line – Project is on Schedule, detectors and electronics performing at design specifications.


31 May

Detector Production Status

# modulesNeededfor 2004

Tube Production at PHT

300

200

100

Module Productionat Princeton/OSU

(~40/week)


PHT Status Report


Scope of Q/C Activities at PHT

Barcode labelingInspection of profiles

MechanicalGraphite coating quality

Inspection of jackets, endcaps, circuit cardsResistivity MeasurementGas tightness (leak test)Wire checkHV conditioning and plateau measurementHigh-current scan with sourceLong range tests (30 days operation at 5650 volts)


HV Plateaus, and source scans

Only 3 bad cells out of ~ 80 tubes


Annoying issues, now mostly solved

At Factory:Maintaining central value and adequate uniformity of graphite resistivity. Achieving adequate graphite surface smoothness.Enforcing uniform lengths.Establishing semi-clean room conditions

Shipping:Fight between Freight Forwarder and Ship Company cost us a month in getting first shipment.Trucking companies seriously damaged boxes in first shipment, but tubes survived – we shall hire private truckers from now on.

Financial:Serious delays in DoE approval of upgrade project.Serious funding delays are causing problems for US Universities!!!Recent word from DoE is encouraging – Sec. of Energy has signed, still needs congressional approval.


First shipment finally arrives

Princeton

Ohio State


Module Assembly

SLAC readoutstrip plane


Electronics

• Performance at design• Tested in BaBar and

reviewed, week of Apr. 15• Production on Schedule


Dec 15 ’02 -- BaBar chooses LST for IFR UpgradeJune 12 ‘03 -- EPAC Review Approves LST Proposal June 15 -- Cost/Schedule/WBS preparedJune 22 -- INFN Gruppo Uno Evaluation June 27 -- BaBar IFC Approves IFR Upgrade ProjectJune 30 -- Choose Large-Cell DesignJuly 17 -- Electronics Design Review Aug 1 -- Place Orders for Tubes & Small partsAug 26 -- Q/A Review Aug 27 -- Install Test Module in BaBarSept 3 -- Fire safety approval for tubes, strips, cables) Oct 1 -- Decide to read out Phi via wire signals Oct 22 -- Mechanical, Schedule, & Budget ReviewNov 10 -- Tube Production begins!Nov 30 -- Orders placed for components: electronics, crates,

HV system, signal cables, HV cablesDec 15 -- φ plane/Z-strip production begins at SLACDec 18 -- First shipment (24 tubes) to Princeton/OSU

2003 Milestones successfully passed


2004 Milestones successfully passed

• Jan 7 -- Q/C systems operational at OSU, Princeton• Jan 9 -- First module assembled at Princeton• Jan 12 -- Presentation to BaBar International Finance Committee• Jan 14 -- First module passes Q/C tests • Jan 31 -- Prototype FEC tested on wire and strip signals• Feb 15 -- First 2 modules shipped to SLAC, one installed in BaBar• Feb 17 -- First container (168 tubes) shipped from Italy to Princeton• Mar 2 -- Second container (168 tubes incl. layer 18) shipped • Mar 3 -- Transition boards for 2 sextants delivered to P’ton &OSU.• Mar 29 -- First container of 168 tubes arrives (finally!)• Apr 12 -- Second container of 168 tubes arrives in Princeton • Apr 5 -- Electronics Readiness Review, system test at SLAC

-- First HV Crates to SLAC -- Installation tooling complete-- IFR Test Stand reconstituted in CEH-- Gas system assembled, under test at SLAC

• May 4 -- 3rd shipment (192 Tubes) [all tubes needed for 2 sextants]


May 6 -- Installation Readiness ReviewMay 15 -- ~80 modules to SLAC

-- Signal cables deliveredMay 18 -- 4th shipment (168 Tubes) from PHT May 20 -- Complete HV cables for 10 modules at SLACJune 15 -- HV Cables for 2 sextants to SLACJune 8 -- Ship all modules for 2 sextants from OSU and P’tonJune 15 -- 5th, 6th shipments (168 tubes ea) shipped from PHT

-- All HV supplies for 2 sextants to SLAC-- All Modules for 2 sextants arrive at SLAC -- Q/C for all tubes for 2 sextants underway at SLAC

June 30 -- All Electronics,crates, backplanes to SLACJuly 8 -- 7th, 8th shipments (168 Tubes) from PHT [Final Shipment]July 15 -- Trigger boards to SLACAug 1 -- RPC Removal beginsAug 15 -- Install First Layer (18 Bottom)Sept 4 -- Bottom Sextant CompleteOct 6 -- Installation CompleteOct 10 -- Close DetectorOct 15 -- Run 5 Begins

Remaining 2004 Milestones


Milestones for 2005 Installation

Oct 1, 04 -- Module construction completeOct 20 -- All modules shipped to SLACNov 1 -- Q/C begins at SLAC

Aug 1 ‘05 -- RPC removal begins

Oct 15 -- Run 5 beginsJul 2005 -- Install remaining 4 sextants


Labour for Installation

INFN (8 FTE)U S

1. SLAC, Princeton, Ohio State have identified enough people to provide a total of 12-15 FTE’s as needed: (installation, staging, Q/C, etc).

2. Jim Krebs and his IR-2 crew constitute an additional 5-6 FTE.

us: llnl, ohio state, oregon, princeton, slac, ucsd · production of limited streamer tubes and...

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