6 June 2005

To: Paul Philp, DOE Project Manager, Run IIb D-Zero Detector Project

From: Vivian O'Dell, Project Manager, Run IIb D-Zero Detector Project

Subject: Run IIb D-Zero Detector Project Report for April 2005

Attached is the monthly report summarizing the April 2005 activities and
progress for the Fermilab RunIIb D-Zero Detector Project.

cc:

M. Abolins

J. Appel

E. Arroyo

L. Bagby

E. Barberis

A. Bean

J. Blazey

A. Bross

J. Butler

W. Cooper

M. Demarteau

D. Edmunds

T. Erickson

H. Evans

S. Fuess

G. Ginther

U. Heintz

M. Hildreth

R. Hirosky

D. Hoffer

K. Johns

M. Johnson

D.  Knapp

> R. Lipton
>
> J. Livengood

P. Lukens

R. McCarthy

H. Montgomery

M. Narain

A. Nomerotski

V. O'Dell

P. Oddone

P. Padley

R. Partridge

V. Pavlicek

TJ Sarlina

R. Sidwell

P. Slattery

K. Stanfield

RP Smith

J. Strait

L. Stutte

E. Temple

C. Trimby

V. White

M. Witherell

D. Wood

T. Wyatt

C. Yoshikawa

Fermi National Accelerator Laboratory

Run IIb D-Zero Detector Project

**Fermilab Experiment Number E925**

################################################################################################################################################################################################################################## Progress Report No. 29 {#progress-report-no.-29 .unnumbered}

**April 2005**

############################### Project Description

The Tevatron Collider at Fermilab offers a unique capability to
elucidate many of the major issues currently facing particle physics.
Its high center-of-mass energy and recently upgraded luminosity offer us
the capability of shedding light on the Higgs mechanism - which has the
potential of offering insight into the origin of mass - and pushing the
boundaries of searches for supersymmetry and other new phenomena beyond
the Standard Model. It also makes accessible improved precision
measurements of the W boson and top quark properties that, by further
constraining the Standard Model, provide increasingly stringent tests of
its precepts. The Tevatron offers the most cogent experimental probes of
Standard Model physics, and beyond, during the coming 3+ years.

The Run IIb D-Zero Detector Project has been designed to allow the
D-Zero Experiment to continue operating in the high intensity Tevatron
environment for the remainder of the coming decade. The integrated
exposure of the D-Zero Detector to colliding beam will result in
radiation damage to the silicon detector that will compromise its
efficiency. Adequate b-tagging is an essential ingredient of the Run II
physics program. In order to maintain adequate b-tagging, D-Zero is
adding an inner layer detector of radiation-hard silicon to enhance
tracking efficiency as the Run IIa detector ages. In addition, the
trigger system must be upgraded in order to provide sufficient rejection
and to limit the dead time at the higher instantaneous rates that will
be delivered by the Tevatron as the run progresses. The Run IIb D-Zero
Detector Project provides for the additional D-Zero Layer 0 silicon
detector and the upgrade of the D-Zero trigger, DAQ, and online systems
in order to enable the continued efficient running of the experiment,
and the acquisition of forefront physics data, for the foreseeable
lifetime of the Tevatron collider program.

############################### Overview of Project Status 

Module production completed in April, although there are still parts to
build more modules, The plan is to build a few more during module
assembly. Plans and fixturing for installing modules onto the support
structure are being finalized.

Production adaptor cards from KSU are being used to read out the
electrical prototype structure with 10 mounted modules. The goal is to
have the electrical prototype read out through the 1% test stand in May.
Work continues debugging the firmware for the SVX4 string readout at
DZero.

The L1 Calorimeter Trigger ADF board production completed in March and
bench testing of all 100 boards was completed during April. Only 3
boards needed some minor rework. All boards for the L1 Calorimeter
Trigger have now been produced and bench tested. Firmware for the TAB
and GAB boards is being optimized and tested. Design of the paddle card
for the BLS-\>ADF cabling was completed, and layout will begin in May.
The test area (sidewalk) was heavily utilized and great progress has
been made in sending data from the calorimeter through the new L1 Cal
Trigger and onto tape. Problems in the Calorimeter Track-Match MTCM
continue to be debugged. Bench testing of the production UFB and MTCxx
continued.

The production PCBs for the DFEA2 were received from the vendor in April
and sent out for assembly. 7 boards were received back and tested. Four
boards had no problems and the remaining three had various recoverable
problems. Progress was made in software issues, both in interfacing the
DFEA2 to EPICS and in testing software for testing the production DFEA2
boards at FNAL.

The production readiness review was help in April for the L2 Beta
upgrade. The reviewers with the upgrade scope of 9 additional processors
and these boards will be ordered. In addition, work continues on the L2
b-tagging algorithm. The L2 STT is progressing, and all production
boards are undergoing tests. In addition, firmware on the Track Fit
Cards is being modified to include Layer 0.

The L1 Calorimeter simulation is now interfaced properly to the overall
trigger framework. Work is ongoing to modify the level 2 simulation to
read the new L1 Cal trigger output. The run IIa L1CTT simulator was
cleaned up and is being prepared to read run IIb equations Work is
continuing to develop a "strawman" 2b trigger list using the trigger
rate tool.

Purchasing of the new 96 nodes for the L3 upgrade is going smoothly. An
RFP was distributed to 5 vendors in April and it is anticipated that the
proposals will be received in May. Six server machines to augment the
four online clusters (DAQ, Database, Fileserver and Online) were
received and will be commissioned during May. All of the single board
computers for the control systems have been received and will be
installed/commissioned during May.

############################### Project Milestone Summary (as of 30 April 2005)

The DOE baseline milestones are shown in Figure 1 as solid diamonds.
These fixed milestones are defined in the modified DOE Project Execution
Plan approved in December 2003. Open diamonds on the same line are the
Project's forecast dates for achieving the milestones. Actual dates of
achieving milestones are shown as solid stars. The Trigger, Online, and
Layer 0 Silicon milestones are shown separately and sorted by current
forecast date.

Table 1 shows the difference in the current forecast and last month's
forecast for achieving the DOE milestones. This table lists approved DOE
milestone dates along with the project's current (and previous month's)
forecast for achieving them. The list is sorted by DOE Milestone date.
Milestones with forecast dates that have changed significantly in the
last month are discussed in Section X of this report.

![](media/image1.png){width="8.46111111111111in"
height="6.532638888888889in"}

**Figure 1:** Run IIb D-Zero Detector Project DOE Level 2/Director's
Milestones. Closed (open) diamonds represent baseline (current forecast)
dates. Closed stars represent completed milestones.

  ----------------------------- ------------------ ---------- ---------- ------------------ ----------- -----------
  **L2/Director\'s Milestones                                                                           
  vs Current Forecast**                                                                                 

  **(Sorted by L2/Director\'s                                                                           
  Baseline Date)**                                                                                      

  **Milestone Description**     **L2/Director\'s   **Last     **This     **L2/Director\'s   **Monthly   **Notes**
                                Baseline (4/05)**  Month\'s   Month\'s   Variance (work     Variance    
                                                   Forecast   Forecast   days)**            (work       
                                                   (3/05)**   (4/05)**                      days)**     

  **WBS 1.2 Trigger**                                                                                    

  L1 Calorimeter Trigger        05/03/04           05/26/04   05/26/04   18                 0           Complete
  TAB/GAB Prototyping Complete                                                                          

  Start Production TAB          02/25/05           10/08/04   10/08/04   \(90\)             0           Complete
  Fabrication                                                                                           

  L2 Silicon Track Trigger      10/17/05           06/21/05   07/19/05   \(63\)             19           
  Production and Testing                                                                                
  Complete                                                                                              

  L1 Trigger Cal-Trk Match      01/03/06           06/01/05   07/06/05   \(118\)            24           
  Production and Testing                                                                                
  Completed                                                                                             

  L1 Calorimeter Trigger        01/05/06           05/04/05   04/29/05   \(167\)            \(3\)       Complete
  Production And Testing                                                                                
  Complete                                                                                              

  L2 Beta Trigger Production    01/05/06           08/08/05   08/16/05   \(92\)             6            
  And Testing Complete                                                                                  

  L2 Trigger Upgrade Production 01/05/06           08/08/05   08/16/05   \(92\)             6            
  and Testing Complete                                                                                  

  L1 Central Track Trigger      01/10/06           09/08/05   08/30/05   \(85\)             \(6\)        
  Production And Testing                                                                                
  Complete                                                                                              

  L1 Trigger Upgrade Production 04/10/06           09/08/05   08/30/05   \(147\)            \(6\)        
  and Testing Complete                                                                                  

  **WBS 1.3 Online/DAQ**                                                                                 

  Online System Production and  10/07/05           05/23/05   05/23/05   \(96\)             0            
  Testing Complete                                                                                      

  **WBS 1.6 Layer 0 Silicon                                                                              
  Detector**                                                                                            

  Freeze Mechanical Parameters  01/06/04           12/15/03   12/15/03   \(9\)              0           Complete

  Release Sensors for           05/26/04           02/26/04   02/26/04   \(63\)             0           Complete
  Production                                                                                            

  Release Hybrids for           06/04/04           03/25/04   03/25/04   \(50\)             0           Complete
  Production                                                                                            

  Release Analog Cables for     06/04/04           03/19/04   03/19/04   \(54\)             0           Complete
  Production                                                                                            

  All Analog Cables Delivered   03/11/05           08/10/04   08/10/04   \(141\)            0           Complete
  and Tested                                                                                            

  All Sensors Delivered and     05/23/05           09/28/04   09/28/04   \(159\)            0           Complete
  Tested                                                                                                

  All L0 Hybrids Delivered,     08/25/05           01/25/05   01/25/05   \(150\)            0           Complete
  Stuffed, and Tested                                                                                   

  All Adapter Cards Delivered   10/17/05           05/27/05   05/20/05   \(98\)             \(5\)        
  and Tested                                                                                            

  Silicon L0 Module Production  11/29/05           04/22/05   04/22/05   \(151\)            0           Complete
  Complete                                                                                              

  Layer 0 Silicon Detector      05/25/06           09/09/05   09/16/05   \(168\)            5            
  Ready to Move to DAB                                                                                  

                                                                                            status      4/30/2005
                                                                                            date:       
  ----------------------------- ------------------ ---------- ---------- ------------------ ----------- -----------

> **Table 1:** Run IIb D-Zero Detector Project DOE Level 2/Director's
> Milestones vs. Current Month forecast. Monthly variances are also
> provided.

############################### Management Highlights -- V. O'Dell

A director's review of the AFEII-t project was held April 13-14, and the
AFEII-t project was approved as a level 2 subproject at the end of
April. The review committee had concerns about the cost and schedule of
the AFEII-t project, and these concerns were addressed by the project.
For more details see
<http://d0server1.fnal.gov/AFEII_April_2005/Review_web.htm> This month's
CPR reflects the new cost of the AFEII-t subproject. Director's review
and the narrative reporting is done with the new management structure.

Also in April, a lab review of the cost of the RunIIb upgrade was done
with the aim of reevaluating the total cost to go and contingency.
Preliminary results show a contingency excess in the project. This will
be reviewed again by the DOE in May with an aim to return excess
contingency to the DOE for reprogramming. Several change requests were
processed in conjunction with this exercise and are reflected in this
month's CPR.

# Procurement Highlights -- V. O'Dell

An RFP for the RunIIb 96 node addition to the online Level 3 processing
farm was distributed to vendors and responses are expected in May.

Preparations are underway for submitting the TripT chip for production
in May. A Production Readiness Review of the TripT has been scheduled
and the documentation is being assembled. This is about a \$200k cost to
the AFEII-t project. The submission is shared with FPIX.

############################### Trigger Highlights (WBS 1.2) -- B. P. Padley, D. Wood

The ADC Digital Filter board (ADF) for the Level 1 Calorimeter Upgrade,
with demanding requirements in both analog and digital sections, was
perhaps the most technically challenging board of the Trigger upgrade.
Thus, it is particularly notable that as of the end of April, 100 of
production ADF\'s completed their testing at Michigan State University,
with only three requiring any reworking. The great care put into the
design and layout paid off with this very high yield (80 boards are
needed for the final system) and a schedule gain of several weeks in the
production and testing phase.

We also note the very encouraging results from the first batch of
production DFEA2 boards received for the L1CTT upgrade. After the ADF,
the DFEA2 is the largest board production of the upgrade.

The L2beta system had a successful Production Readiness Review in April,
which now means that all systems have had PRR\'s. The remaining PRR\'s
in the schedule involve reviews of system level tests that are underway
now at Fermilab.

1.  **Level 1 Calorimeter Trigger (WBS 1.2.1) -- M. Abolins, H. Evans**

> Bench testing of the full complement of production ADF v2 boards was
> completed in April. Of the 100 boards tested, none had major problems
> and only three required minor reworking. With the completion of this
> testing, the last major hardware component of the project is finished.
>
> At Nevis, studies of the new EM algorithm as implemented in firmware
> continued. Improvements to the implementation are being made to reduce
> the number of pathologies produced by the algorithm. The improvements
> are now being tested using simulated data samples. Testing of the new
> firmware for creation of trigger terms in the GAB also began in April.
> By the end of the month, most of this testing has been completed.
>
> At Fermilab, the design of the paddle card used to ease cabling at the
> back of the ADF crate was finalized in April. We are now performing
> cross-checks to insure that channel mapping has been done correctly in
> the design, with layout to begin in early May.
>
> Finally, work in the Test Area at Fermilab continued on several
> fronts. Data transfer between the ADF v2 cards and TABs was
> established as was data transfer from the TABs to the D0 Level-2 and
> Level-3 trigger systems. Real data from the calorimeter (using the
> splitter cards) was recorded to disk as well and will be used to study
> digitization and digital filtering in the ADFs.

2.  **Level 1 Calorimeter/Track Matching (WBS 1.2.2) -- K. Johns**

> We continue to debug a problem with the production MTCM sending L2 and
> L3 messages at D0. Limited test opportunities at D0 and perfect bench
> testing performance have slowed progress. Bench testing of the
> production UFB and MTCxx cards continued. All parts for the splitter
> cards are now in hand and assembly will start next month.

############################### Level 1 Track Trigger (WBS 1.2.3) -- D. Lincoln, M. Narain

> **DFEA2 -** 60 production version PCBs were received from the vendor
> on 4/22/05. PCBs were sent for assembly on 4/23/05. On 4/26/05 BU
> received 7 assembled boards. By 4/28/05 all 7 boards were checked by
> Shouxaing Wu. Out of 7 boards, 4 boards were working fine and 3 had
> problems of various kinds. 2 of the 3 boards have assembly defects --
> but could be recovered by changing the routings in firmware. The third
> had problems with the orientation of the Samtech connectors and could
> be recovered.
>
> Work also continued to enhance the functionalities of the DFEA2 test
> software. Hardware status: Backplanes (DFEB2) are ready for
> installation in the sub-racks. All DFE documentation has been moved to
> http://www-d0.fnal.gov/hardware/dfe.
>
> **EPICS Interface/Download Software --** Geoff Savage worked on EPICS
> software. We can now:
>
> \- read / write one 16-bit word to a DFEA2
>
> \- read / write up to 744 16-bit words to a DFEA2
>
> \- download a firmware file to all four FPGAs by sending the filename,
> up to 250 characters (this can be increased)
>
> **Commissioning Software Status --** A new program (incapture.c) was
> written by Jamieson Olsen to test DFEA2 boards on the test stand. This
> program is working and Norik is using it to send events through the
> prototype boards. The DFEA2 board was checked by using test vector to
> DFEA2 input buffer and comparing with prediction. The test vectors
> were taken from D0 platform readout. The output from DFEA2 and
> prediction were compared and the differences are understood.

############################### Level 2 Beta (WBS 1.2.4) -- R. Hirosky

> The Production Readiness Review of the L2beta upgrade was held in
> April. The review panel, chaired by Reinhard Schwienhorst of MSU,
> reviewed hardware compatibility, power and cooling requirements, CPU
> power need projections, numbers of processors and spares, and testing
> plans. The committee\'s conclusions are repeated here: \"Bob
> \[Hirosky\] presented a very strong and convincing case for the L2
> Beta upgrade. After having received additional information about power
> consumption and timing profiles, we conclude that there are no issues
> with the new Betas, that they have been well tested and can operate
> with the power and cooling provided by the L2 crates. There is a clear
> path for the L2 Beta upgrade. The timing simulations demonstrate the
> necessity to implement multiple-Beta crates, in particular in light of
> possible instantaneous Tevatron luminosities exceeding 2E32, going
> maybe as high as 3E32. Thus, the request for nine additional Betas is
> well-justified. We recommend the purchase of nine additional L2Beta
> processors.\"
>
> Work is in progress to convert a L2 b-tagging algorithm into a
> software tool for the online trigger system. The L2beta prototype
> testing is now complete. The faster prototype is observed to perform
> exactly as the original Betas in the D0 DAQ.

############################### Silicon Track Trigger (WBS 1.2.5) -- U. Heintz

> In April, testing of motherboards and Silicon Track Cards (STCs) took
> place at BU. Some STC firmware modifications were made to make them
> less sensitive to faulty inputs. At Columbia, two Buffer Controllers
> (BC) were assembled and testing started. A misrouted trace was
> discovered on the boards that will be rerouted using a wire soldered
> to the boards. Otherwise, the boards tested fine. At Stony Brook, work
> was done on adapting Track Fit Card (TFC) code to include Layer 0.

############################### Trigger Simulation (WBS 1.2.6) -- E. Barberis, M. Hildreth

> The L1Cal simulator, tsim_l1cal2b, is integrated with the trigger
> simulator framework, tsim_l1l2. It fills IOgen objects with output to
> tsim_l1caltrack and to Level2 (ADC counts and trigger masks). All
> three objects (electrons, taus, jets) can be identified in a single
> job. The new version is released in the code repository. The IIa
> version of the L1CTT simulator is working and being tested. We're also
> working on the equation handling for IIb. Work is ongoing on the
> L1Caltrack simulator, tsim_l1caltrack, on the piece of the code which
> reads the output of L1Caltrack, i.e., the analyze package. Work is
> also progressing on the modifications to the Level 2 code for the
> reading of the new L1Cal output (i.e. the output of tsim_l1cal2b).
>
> Work on the Trigger Rate Tool has concentrated on the insertion of TRT
> trigger objects into the Common Analysis Data Format, so that trigger
> studies can be performed as a function of the selection on the offline
> reconstructed objects. A modified version of the chosen electron
> algorithm has been implemented in the firmware (due to some
> pathologies observed with the original version) and we are testing it
> both with the Trigger Rate Tool and the L1Cal simulator, tsim_l1cal2b.

I.  **DAQ/Online Highlights (WBS 1.3) -- S. Fuess**

############################### Level 3 Systems (WBS 1.3.1) D. Chapin, G. Watts

> The requisition process for a 96-node upgrade of the Level 3
> processing farm continued. A Request for Pricing (RFP) was distributed
> to five vendors in early April. Competitive bids were received from
> two vendors, and a purchase order was awarded in late May. We expect
> delivery at the end of June.
>
> The new nodes being purchased are 64-bit EM64T Intel Xeon processor
> based. We borrowed a similar system from the Computing Division, and
> have successfully demonstrated that the Level 3 DAQ and filter code
> runs correctly on these systems.
>
> Requisitions for two additional 48-port network switch modules were
> submitted in March, and slowly moved through the approval process.
> This purchase is currently in the hands of a buyer. The Fermilab
> Computing Division Network Group is managing the purchase of these
> components.
>
> Electrical infrastructure improvements to the D0 Assembly Building
> 2^nd^ floor area that will house the Level 3 farm nodes were completed
> in March. Network trunk cables for these nodes have been acquired from
> Computing Division surplus.

############################### Network and Host Systems (WBS 1.3.2) -- J. Fitzmaurice, S. Krzywdzinski

> **Online/DAQ Network: 1.3.2.1**
>
> During March a change order (with a net decrease in expenses) was
> processed to reallocate funds within WBS 1.3.2, specifically to
> upgrade the Online Cisco 6509 switch. A requisition, managed by the
> Computing Division Network Group, for a new Supervisor module and a
> 48-port Gigabit module has been submitted.
>
> **Control and Monitoring systems: 1.3.2.2, 1.3.2.3**
>
> The upgrade of the interactive control room and the event monitoring
> systems is a DØ operations task, and is part of the operations budget.
> The evaluation of appropriate systems naturally follows the
> investigation of potential Level 3 and host server systems; we expect
> to add \~8 new nodes, or \~15% of the current control and monitoring
> systems, during Summer 2005.
>
> **Storage, DAQ Host, ORACLE, & File Server Systems: 1.3.2.4, 1.3.2.6,
> 1.3.2.7, 1.3.2.8**
>
> The complete RunIIb plan calls for an augmentation of the minimal
> central system configuration now in operation. Six servers are being
> added to the four operational clusters (DAQ, Database, File Server,
> and Online functions). The new servers will provide the computing
> capacity needed for the duration of RunIIb, plus give much-needed
> configuration flexibility. These six systems and peripherals were
> delivered in April and are being commissioned.
>
> The RunIIb plan calls for a single additional quad-processor system to
> be purchased as a principal node in the DAQ event data-logging chain.
> We plan to evaluate the performance of the six systems noted above to
> determine whether a dual-processor system is adequate. The result will
> dictate the final DAQ server purchase. This remains as the only
> outstanding purchase to be made for the Online/DAQ portion of the
> RunIIb upgrade.
>
> We completed the investigation of options for completing the disk
> storage requirements and created requisitions in April. A JBOD array
> for event data buffers was delivered in early May; the requisition for
> an additional RAID array is in the hands of a purchasing agent.

############################### Control Systems (WBS 1.3.3) -- F. Bartlett, G. Savage, V. Sirotenko

> The remaining MVME5500 processors for the control system upgrade were
> delivered in April, completing that order. A few adaptor board
> components for those processors that are used in the muon system are
> outstanding, but expected in May. We have begun the process of
> installing the new processors. There are no outstanding issues.

II. **Silicon Detector Layer 0 Highlights (WBS 1.6) -- A. Bean, R.
    Lipton**

Module production of the 48 needed modules was completed and additional
spare modules are being produced.   The overall yield continues to be
good, with \~90% passing specifications and \~80% with zero or 1 bad
channel. Fixturing for module installation was set up and testing begun.
Design of fixturing for installation at D0 is nearing completion and
prototypes of carbon fiber installation tools have been produced. 
Preparation of the support structure for module installation has begun

############################### Readout (WBS 1.6.2) -- A. Nomerotski, R. Sidwell

> Two more Adapter Cards have been received from KSU and used to read
> out the electrical prototype structure with 10 mounted modules. 100 mV
> oscillations have been found on the regulated SVX4 power coming from
> the Adapter Card. The problem has been solved by using local
> regulation at AC. The goal for the electrical prototype is to have 10
> modules read out\
> through the 1% stand in May.\
> \
> First production jumper cables have been received from KU and
> successfully tested. The cables do not have stiffener at the hybrid
> end. 0ne cable has been plugged/unplugged 20 times with no damage
> observed to check its longevity.\
> \
> SVX4 readout in DAB: we had problems to have reliable readout with
> SVX4 chains in the test-stand \"crate 79\" and with the modules
> installed in the collision hall. The debugging of the firmware is in
> progress. A difficulty that should be addressed there is that the
> stands are\
> available only a small fraction of time between the stores since the
> data taking with stands interferes with the operations.

############################### Mechanical Design and Fabrication (WBS 1.6.3) -- W. Cooper

> Evaluation of geometric, electrical, and mechanical properties of the
> two completed L0 support structures led to the selection of the second
> structure for use in fabricating Layer 0. That structure is
> sufficiently accurate geometrically, has been leak checked, is leak
> tight, and has improved mesh ground circuits. A minor restriction at
> the end of one cooling passage was repaired.
>
> A plan for mounting sensor -- hybrid modules on the support structure
> was proposed and is being reviewed. The procedure compensates for
> gravitational deflection of the structure based upon finite element
> analysis and measured deflections of the structure under load. A
> spreadsheet was developed which specifies coordinates of all sensors
> based upon the measured shape of the support structure.
>
> Wheels for the ends of a fixture to hold and rotate the support
> structure during module installation were received from the University
> of Washington and are acceptable. Spacers to position hybrids from the
> support structure were received. Fixturing for positioning the spacers
> was designed and submitted for fabrication. All fixturing to install
> modules on the support structure was received.
>
> Copper on kapton flex cables, to connect the RTD's monitoring Layer 0
> temperatures were received from Rice. Detailed paths for the cables
> were proposed and are under evaluation.

############################### Detector Modules and Final Detector Integration (WBS 1.6.4, 1.6.5) -- L. Bagby

> The 1% test stand is being expanded to accommodate the readout of the
> entire Layer 0 detector. The LV system has been connected and tested
> for the additional 20 readout channels. Integration of the HV Control
> into the EPICS system is underway. A detector cooling interlock system
> is being developed. The Adapter Card mounting panel has been reviewed
> and is being expanded to accommodate 12 cards.

III. **Analog Front End Highlights (WBS 1.7) -- A. Bross**

> During April we finished the first pass testing of the AFE II
> prototype boards. Sixteen (16) boards will go into channel-by-channel
> testing. Additional testing of the TriPt prototypes was also done in
> April. No new issues have been identified. The TriPt redesign was
> completed and verification is in the final stages. We are on schedule
> for a joint TriPt/FPIX submission on 5/24. The schematic for the AFE
> IIt prototype board is progressing and layout should start in early
> May.

1.  **TripT (WBS 1.7.4) -- L. Bellantoni**

> Prototype measurements and documentation for the Directors\' Review
> were completed.

2.  **AFEII-t board (WBS 1.7.5) -- P. Rubinov**

> Phases A1 to A126 (visual inspection), B1 to B20 (preliminary power
> and programming), C1 to C9 (functional testing of slow control and
> monitoring) and D1 to D8 (functional testing of FPGAs and TriP chips)
> of AFEII prototype testing is done for all boards. Tests E1 and E2
> completed on one board (temperature control). D9 to D11 (charge
> injection for every channel) and temperature control testing for every
> board require modifications for which parts must be ordered. The parts
> have been ordered and this testing is expected to be completed during
> May. The goal of the testing is a minimum of 4 fully working boards.
>
> Conceptual design of the AFEIIt is complete, schematic capture is
> progressing, and layout of reusable blocks is starting.

3.  **Code Development (WBS 1.7.6)**

> No activity in this area occurred during April.

# Schedule Variance Analysis (as of 30 April 2005)

Schedule variances are reported against director's milestones in section
III. Nine milestones have been successfully achieved. All remaining
milestones are projected ahead of the DOE baseline dates.

1.  **D-Zero Run IIb Trigger Upgrade (WBS 1.2)**

> The L1 Calorimeter Trigger Production and Testing Complete milestone
> was achieved at the end of April. All boards have been produced and
> bench tested.
>
> The L1 Calorimeter Track-Match trigger lost 24 days in the last month.
> This is due to problems debugging the production MTCM. The boards
> tested fine on the bench but have some problems sending L2/3 messages
> to D0. The L2STT lost 19 days in the last month. However, production
> boards are now in hand and being tested. In addition, the L2STT is not
> a critical path item for the L2 trigger upgrade. The L2 Beta lost 6
> days, which drove out the final L2 completion milestone by 6 days.
> There is very little risk in this, however, as the processors being
> purchased are commercial CPUs and have been tested with the existing
> boards.

2.  **D-Zero Run IIb Online (WBS 1.3)**

There is no unfavorable schedule variance for this subproject.

############################### D-Zero Run IIb Layer 0 Upgrade (WBS 1.6)

> The milestone for Silicon Layer 0 ready to move to DAB slipped 5 days
> in April due to slippages in module installation preparation. We are
> watching this carefully and continue to look for ways to keep to the
> schedule and at the same time generate more schedule contingency for
> the layer 0 work.

############################### Department of Energy Milestones (as of 30 April 2005)

No DOE milestones were predicted or achieved during the month of April.
Table 2 (below) shows the status of all DOE Milestones.

  -------------------------- ----------- ------------ ------------ ------------------ ----------- -----------
  **L1 DOE Milestones vs                                                                          
  Current Forecast**                                                                              

  **(Sorted by L1 Baseline                                                                        
  Date)**                                                                                         

  **Milestone Description**  **L1        **Last       **This       **L2/Director\'s   **Monthly   **Notes**
                             Milestone   Month\'s     Month\'s     Variance (work     Variance    
                             (4/05)**    Forecast     Forecast     days)**            (work       
                                         (3/05)**     (4/05)**                        days)**     

  **WBS 1.2 Trigger**                                                                              

  L2 Trigger Upgrade         01/05/06    08/08/2005   08/16/2005   \(92\)             6            
  Production and Testing                                                                          
  Complete                                                                                        

  L1 Trigger Upgrade         04/10/06    09/08/2005   08/30/2005   \(147\)            \(6\)        
  Production and Testing                                                                          
  Complete                                                                                        

  **WBS 1.3 Online/DAQ**                                                                           

  Online System Production   10/07/05    05/23/05     05/23/05     \(96\)             0            
  and Testing Complete                                                                            

  **WBS 1.6 Layer 0 Silicon                                                                        
  Detector**                                                                                      

  Layer 0 Silicon Detector   05/25/06    9/09/2005    9/16/2005    \(168\)            5            
  Ready to Move to DAB                                                                            

                                                                                      status      4/30/2005
                                                                                      date:       
  -------------------------- ----------- ------------ ------------ ------------------ ----------- -----------

> **Table 2:** Run IIb D-Zero Detector Project DOE Level 1 Milestones
> vs. Current Month and Previous Month's forecast. Entries are sorted by
> DOE L1 Milestone date. Monthly variances are also provided.

############################### Cost Performance Report (as of 30 April 2005)

This report is generated from COBRA and provides a summary of the WBS
1.2-1.4 costs of the Project down to Level 3 of the Work Breakdown
Structure. Silicon detector subproject closeout costs are not tracked
here. Input data originates with the status (% Complete) of the Project
schedules as reported by the Level 2 managers and actual costs extracted
from the Fermilab accounting system. Where possible, costs are accrued
for items that have been delivered, but not yet invoiced. Financial
summaries are shown for this reporting period (columns 2-6) as well as
the project to date (columns 7-11). Column 12 contains our baseline BAC,
and will only be changed after the formal implementation of the Change
Control process. Column 13 is the projected BAC, based on the current
month's schedule.

![](media/image2.png){width="8.61111111111111in"
height="6.648611111111111in"}

############################### Obligation Reports (as of 30 April 2005)

The DZero Obligation Reports can be found below. The first report shows
total obligations without the cost of the original Run IIb Silicon and
related closeout costs. The second report shows all obligations.

![](media/image3.png){width="8.354861111111111in"
height="6.444444444444445in"}

![](media/image4.png){width="8.434027777777779in" height="6.5125in"}