DZero Run IIb Rev Nov 05 ‘03 1 Kotcher Agenda (from Rebaselining Review)  Introduction (Kotcher – 10’)  Trigger & DAQ/Online (Wood – 30’) u AFE II/TriP (Bross – 15’)  BREAK  Silicon Layer 0 (Lipton – 30’)  Baseline Change Proposal, Rebaseline Summary (Kotcher – 30’) Rebaselining Review of the Run IIb DZero Detector Project November 5, 2003 Fermilab Most everything you will see today is in draft form

DZero Run IIb Rev Nov 05 ‘03 2 Kotcher AFE II/TriP Upgrade WBS  We are proposing an upgrade to the Central Fiber Tracker (CFT) readout & triggering system u Maintain tracking capability in light of cancellation of silicon upgrade, particularly at increased luminosity s considerably improved noise performance – lower thresholds, enhance triggering, efficiency s z-information from timing u New Analog Front-End Boards (AFE II) and trigger (TriP) chip s First version TriP chip submitted with SVX4 s Designed, tested by Fermilab (PPD, Yarema) s Was major success out of the box s First full AFE II prototype being laid out now, expect back by end CY03 s System represents major simplification, performance upgrade u Exploiting considerable in-house experience – personnel, depth of technical knowledge  TPC = $2.2M (includes 50% total contingency) u M&S cost estimate based on detailed past experience u see talk by Bross

DZero Run IIb Rev Nov 05 ‘03 3 Kotcher Run IIb Project Organization Nov ‘03 D0 Run IIb Project J. Kotcher, Project Manager V. O’Dell, Deputy (Trigger/DAQ); R. Lipton, Deputy (Silicon Layer 0) W. Freeman, Associate; M. Johnson, Technical Coordinator D. Knapp, Budget Officer; T. Erickson, Administration WBS 1.2 Trigger P. Padley D. Wood L1 Track Trigger M. Narain L1 Cal Upgrade M. Abolins, H. Evans L2  Upgrade R. Hirosky Silicon Track Trigger U. Heintz WBS 1.3 DAQ/Online S. Fuess P. Slattery L1 Cal/Track Match K. Johns Simulation E. Barberis, M. Hildreth WBS 1.5 Installation R. Smith Silicon Installation Mechanical: (W. Cooper) Electronics: (L. Bagby) Trigger Installation D. Edmunds WBS 1.4 Project Administration Administration (D. Wood) Control Systems F. Bartlett, G. Savage, V. Sirotenko Level 3 Systems D. Chapin, G. Watts DAQ/Online Management (P. Slattery) Network & Host Systems J. Fitzmaurice, S. Krzywdzinski Installation an integrated part of project plan, but removed from formal Run IIb baselining AFE II/TriP A. Bross, TBD WBS 1.6 Silicon Layer 0 A. Bean (R. Lipton) Sensors M. Demarteau, R. McCarthy Readout Elec A. Nomerotski, R. Sidwell Mech Des & Fabrication W. Cooper 1.6.4, Detector Modules & Integ J. Fast, L. Bagby Administration (A. Bean) Full Run IIb silicon replacement, now cancelled, was WBS 1.1 For initial prototyping phase

DZero Run IIb Rev Nov 05 ‘03 4 Kotcher AFE II/TriP Decision Process  Project funding request ($2.2M) includes both salaries and M&S for production only; does not contain either salaries or M&S for R&D u Has been coming from operating funds (e.g., TriP work & testing) u Agreement with Laboratory that this will continue  Before fully supporting the pursuit of this sub- project, we first must convince ourselves that it will provide the experiment with sufficient gains to justify the considerable effort & potential interruptions to data-taking, and that the scheme will work as advertised  Given the time scales (summer ’05 completion), answering these questions must be given sufficient priority during the next few months…and without allowing operations to falter

DZero Run IIb Rev Nov 05 ‘03 5 Kotcher AFE II/TriP Decision Process  The following must be completed before production funds will be released: u Continuation/completion of simulations u TriP resubmission s Abder is starting u AFE II prototype layout, fabrication & testing s Arrangements to free John A. up to pursue this for next few months being finalized now s Operations will be covered s Fabrication and testing must immediately follow u DZero Internal Review, followed by a u Laboratory Review, if warranted

DZero Run IIb Rev Nov 05 ‘03 6 Kotcher AFE II/TriP Decision Process  The DZero Review will be a critical one  Among the things they will be asked to look over: u Technical gains & feasibility u Physics benefits u Realism of schedule u Long-term commitment of personnel u Credibility of installation and commissioning plan, and its impact on acquisition of physics quality data s A major consideration u Will be asked to provide an overall recommendation, submitted to Spokes, PM  If justification is there, and the DZero Internal Review Committee recommends moving forward, would like to hold the Laboratory Review no later than April ’04  Targeting summer ’05 completion (installation during summer shutdown), which is still tight