Forward Vertex Detector Status: R&D: Scientific and Technical Resources
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Transcript of Forward Vertex Detector Status: R&D: Scientific and Technical Resources
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107/10/07
D. M. Lee, LANL
Forward Vertex DetectorStatus: R&D: Scientific and Technical Resources
• Technical Design Overview
• Design status
• R&D
• Cost and schedule
• Scientific Resources and Manpower
• Issues and Concerns
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207/10/07
D. M. Lee, LANL
Forward Vertex DetectorTechnical Design – Specifications
• Cover the Muon Spectrometer Acceptance – both Arms (10-35 deg)
• Full Azimuthal coverage – hermetic
• DCA resolution < 200 µm at 5 GeV
• ≥ 3 space points / track
• Maximum Radiation Length < 2.4%
• Survive 10 year integrated dose = 200k Rad
• Low Occupancy in Au – Au Central < 10.0%
• Co-exist with barrel VTX
• Compatible with PHENIX DAQ
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307/10/07
D. M. Lee, LANL
Forward Vertex DetectorTechnical Design – Mechanical
Combined VTX + FVTX without outer enclosure FVTX
“Big Wheel”
Location for all readout
electronics
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407/10/07
D. M. Lee, LANL
Forward Vertex DetectorTechnical Design – Mechanical
4 hermetic disks, z=18.5 – 38 cm
48 wedge segments per disk ( 7.5 deg)
Inner disk radius = 3.5 cm (4.5 cm active)
Outer disk radius = 17 cm
75 micron strips, 550,000 strips/endcap
Total power load of disks = 50 W each
Power load of Readout cards= 450 W in big wheel
Room temperature operation
Each Endcap
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507/10/07
D. M. Lee, LANL
Forward Vertex DetectorTechnical Design – Mechanical
Mechanical Integration with the Barrel VTX
Fully integrated model
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607/10/07
D. M. Lee, LANL
Forward Vertex DetectorTechnical Design – Wedge
Backplane (0.76mm graphite fiber composite)
Screw (nylon)
Pin hole(for alignment)
Pin hole (for alignment)
HDI
Connectors for extension cables
Detector
FPIX Chips (26, 13 ea. side)
Screw (nylon)
All bonded with rigid epoxies
HDIDetector
FPHX Chips
Backplane
Rigid, thermally conductive epoxy
Rigid epoxy
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707/10/07
D. M. Lee, LANL
Sensor HDIHDI
FPHX Chips (13 per column)
Mini-strips are oriented to approximate an arc
Forward Vertex Detector FVTX Sensor
• Sensor– 2 columns of strips– 1664 strips per column– strip length 2.8 to 11.2 mm– 75 µm spacing– 48 wedges per disk (7.5˚/sensor,
~15˚/wedge)– 0.5 mm overlap with adjacent wedges
• FPHX Chip– 1 column readout– 128 channels – ~ 70 µm channel spacing– Dimensions –9mm x 1.2 mm
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807/10/07
D. M. Lee, LANL
Sensor layoutR&D prototyping design
Zoom in …
one FPHX chip
testing pads
(both staged)
bonding pads
Guard ring
Dicing edge
Vaclav Vrba, Prague
Thickness 300 µm
Doping of starting material n type
Resistivity 2-5 K-cm
Wafer diameter 6 “ preferred
Passivation SiO or SiN
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907/10/07
D. M. Lee, LANL
SensorR&D A real prototype
Vaclav Vrba, Prague
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1007/10/07
D. M. Lee, LANL
HDI Stack Up
GND
Signal
Signal
Power
HDI trace count
2 R/O lines x LVDS pair x 26 chips 1044 Download and Reset lines 42 Clocks x LVDS pair 41 Calibration line 1
113
Forward Vertex Detector HDI-High Density Interconnect
• High Density Interconnect (HDI) – kapton flat cable to transfer data from the chip to the read-out electronics
– 176 μm thick– 4 copper planes (ground, power, 2ea signal), 5
Kapton films, 8 glue layers
HDI
glue
glue
glue
glue
glue
glue
glue
glue
kapton
kapton
kapton
kapton
kapton
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1107/10/07
D. M. Lee, LANL
Max deflection10.4μm
Zero deflection (boundary conditions)
Wedge R&D Analysis Temperature & Stress
3-D Temperature Contour
Max Tº = 20.3ºCWarmest ROC
Min Tº = 15ºC
• Warmest FPHX Chip is 5.3ºC Warmer than Back Edge of Backplane
3-D Distortion Contour
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1207/10/07
D. M. Lee, LANL
Forward Vertex Detector Half-Disk Assembly: Details
Thermally conductive
Silicone
Plastic inserts for screws and pins
Single piece plastic insert for screws and pins
Standoff plate
Foam core
Honeycomb core
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1307/10/07
D. M. Lee, LANL
Disk-Level R&D Modeling Thermal distortion
Max deflection of detector ~8μm
Fundamental vibration mode: 164 HzDistortion due to cooling
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1407/10/07
D. M. Lee, LANL
Half Cage Assembly
Cooling hose (silicone)
Stat
ion
1
Stat
ion
2
Stat
ion
3
Stat
ion
4
Z
Y Al Honeycomb core, C face sheets
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1507/10/07
D. M. Lee, LANL
Liquid Cooling CircuitR&D
FVTX Inlet: 10°C, ~5 psig
station 4: ~20.6°C
Outlet plane 4: 10.3°C
FVTX Outlet: 11.1°C, ~3 psigstation 3: ~20.9°C
station 2: ~21.2°C
Outlet plane 3: 10.6°C
Outlet plane 2: 10.9°C
Warmest Chip, station 1: ~21.4°C
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1607/10/07
D. M. Lee, LANL
Half Cage AssemblyR&D
Gravity Sag (Max = 3.2µm) Drum mode shape (f=137.7 Hz)
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1707/10/07
D. M. Lee, LANL
VTX+FVTXFinite Element Model R&D
First Mode: 38Hz
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1807/10/07
D. M. Lee, LANL
FPHX Chip DesignR&D Phase 1
• Designed by FNAL• Based upon well tested FPIX2 chip design• Data push readout over 2 output lines• Zero suppression with programmable
threshold• Fully programmable logic with masking
capabilities• Data contains:
– 3 bit ADC– 7 bit Strip Information– 6 bit Beam Counter
• Noise 150e + 140e/pf• Power <110 µW per channel
Data Word structure TBDTime (ns)
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1907/10/07
D. M. Lee, LANL
FPHX Chip DesignSpecifications – Phase 2
• Match to 75 µm strip spacing, ~ 70 µm channel spacing
• Design to strip capacitance ≤ 1.5 pf
• Dynamic range to extend to 50000 e-
• Noise ≤ 425 e-
• Chip readout, 4 hits in 4 beam clocks
• Use Data push architecture
• 4 bit ADC required, 5 bit goal, with programmable reference voltages
• 2 output lines
• All other FPIX2 specifications*
* FPIX2 has same output architecture as FPHX so FPIX2 is used for testing DAQ designs
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2007/10/07
D. M. Lee, LANL
Forward Vertex DetectorTechnical Design – Electronics DAQ
Readout electronics split into two parts
– Near the detector (ROC)– Compresses and serializes the
data from a group of chips– Radiation tolerance use
FLASH based FPGAs from Actel– Fiber link to the control room
– In the Control Room (FEM)– Buffer data for 64 beam clocks– Send data to DCM upon LVL1
trigger request– SRAM based FPGAs from Xilinx
N FPHXChips ROC FEM PHENIX
DCM
1,2 output lines per chip
Stream of 20-bit data words @ 150 MHz– under design
Zero suppression
Programmable Threshold
Buffers Data for 64 Clocks
Upon Lvl-1 grab relevant data
Build packet
Send data to DCM/LVL1
Pass Clock to ROC
Slow controls manager
PHENIX StandardLimit <2000 20-bit words/DCM
GTMLVL1
fiber
SlowControl
Deserialize and Combine data from several FPHX chips
Strip Synch Words
Send data over fiber
Calibration
2.5 Gb/sfiber link
Inside IR In Counting House
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2107/10/07
D. M. Lee, LANL
ROC Design Specifications
• Combine serial data from 52 FPHX chips ( 2 wedges)
• Synchronize readout and strip off Sync Words
• Generate ~130 MHz Serializer Clock
• Provides Control, Download and Calibration signals for the chips
• Append CHIP ID to the data
• Send parallel data word output at 130 MHz over 2 fiber interface to the FEM
• Move from ACTEL A3PE600 to ACTEL A3PE3000 FLASH based FPGA
= done
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2207/10/07
D. M. Lee, LANL
ROC Block Diagram
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2307/10/07
D. M. Lee, LANL
ROC Prototype R&D
USB Interface
Actel Board
DigiIO
8-chip module
• Actel A3PE600 prototype board
• Slow control via USB interface (DLP-2232M)
• Output data via NI-6534 PCI card at 20 MHz (up to 640 Mbps)
• Test an 8-chip FPIX module (FPIX is progenitor of FPHX chip and has similar digital backend)
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2407/10/07
D. M. Lee, LANL
ROC Prototype R&D
USB Interface
Actel Board
DigiIO
8-chip module
Covers 30 deg (16 wedges)
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2507/10/07
D. M. Lee, LANL
FEM Design Specifications
• FEM receives data from a single ROC channel over two fibers at fixed rate of 2.5 Gbits/s
• Main functionality– Store the data by BCO counter – Buffer data for 64 BCO clocks – Read the data from certain clock to output buffer at 300 MHz – Send the output buffer content to the DCM
• Plan to combine the data from 4 FEM channels on single FEM board• Implementation
– Xilinx mid-scale Virtex-4 FPGA VC4VSX35– Use built-in FIFOs and Relationally Placed Macros (RPMs) for maximum
performance and predictability (Provided by XILINX)
= done
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2607/10/07
D. M. Lee, LANL
FEM R&D
• Design tested with single chip readout and “fake” data and running chip calibration chain
• 100% of hits propagates through FEM with realistic triggered readout• Readout to PC tested at 640 Mb/s rate using NI-6534 readout board
Virtex-4 test boardFPIX Chip
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2707/10/07
D. M. Lee, LANL
Test of Calibration System
• Test each pixel by injecting 64 pulses at gradually increasing amplitude
• Upper figure shows histogram of turn-on curve for one channel
• Lower figure shows noise
• Inject capacitor = 3fF Noise ~ 102 e
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2807/10/07
D. M. Lee, LANL
Summary Designs and R&D
• Mechanical design is well along and mature
• Some mechanical prototyping needed
• Sensor prototype finished and ready for testing
• Readout ROC and FEM prototyped and tested– Fiber link prototyped and under test– All other requirements met– Calibration circuit designed and to be implemented on ROC board
• FPHX conceptual design done, first pass
• FPHX R&D critical path
FEM with fiber readout
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2907/10/07
D. M. Lee, LANL
Remaining R&D
• DAQ – ROC and FEM electronics PC boards are now in progress and will be complete by Jan 2008 – LDRD funded
• FPHX – complete design and chip layout – SOW in progress, signed by LANL and FNAL, ready for BNL signature – Start July 2007
• FPHX – First MOSIS run, early 2008
• Mechanics – some prototyping desirable 2007
FEM with fiber readout
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3007/10/07
D. M. Lee, LANL
Mechanical structures – HYTEC estimate based on prior experience with VTX and ATLAS
Sensors – Quotes from CIS, MICRON
FPHX – FNAL estimate based on prior experience
Electronics Interface DAQ – estimate based on prior experience
Wire bonding – PROMEX quote
DCM,slow controls, etc – Muon system experience, Steve Boose
Cost Basis - Major Items
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3107/10/07
D. M. Lee, LANL
FVTX Schedule Assumptions
•Construction start – January 1, 2008 ( 2nd QTR FY08)• LANL R&D start - January 2006
• BNL R&D start – October 2006
• Schedule durations determined by engineering estimates, vendor quotes
• Duration of project made to match funding profile
• VTX and LDRD impact the schedule especially R&D
• Wedge assemblies tested at a rate of 3/day ( automated computer tests)
• Disk assembly assembled in 2 week, metrology of disk in 2 week
• Commissioning for 8 months
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3207/10/07
D. M. Lee, LANL
FVTX Major Cost Items
Major Item Base Cost Contingency Sum
Mechanical Ladder and support $416k 26% $524k
Sensor $410k 26% $517k
FPHX Chip $240k 36% $326k
Wire bonding $188k 26% $237k
ROC boards $443k 36% $603k
FEM boards $323k 36% $440k
HDI $111k 25% $139k
Total Project (FY07) $3669k 25% $4595k
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3307/10/07
D. M. Lee, LANL
Scientific resources and ManpowerDOE Office of Nuclear Physics
J. Simon-GilloFederal Program Manager
DOE Project ManagerM. Butler
Brookhaven Site Office
BNL Program ManagerTom Ludlam
BNL
PHENIX FVTX Project OfficeProject Manager: M. Brooks (LANL)
Deputy Project Manager: D. Lee (LANL) Electronics System Engineer: E. Mannel (Columbia)Mechanical System Engineer: W. Sondheim (LANL)
PHENIX ManagementSpokesperson
B. JacakOperation Manager
E. O’BrienUpgrade Manager
A. Drees
Offline
SoftwareX. WangNMSU
SimulationX. Wang
NMSU,LANL,Saclay
Database
ROCM. Prokop
LANL
FEM
QAS. Butsyk
LANL
DAQM. Brooks
LANL
SensorJ. Kapustinsky/
LANL
Sensor DesignJ. Kapustinsky
LANL, Columbia,Czech
Sensor QAD. Winter/TBD
Columbia, UNM,Czech
FPHXJ. Kapustinsky/
D. WinterLANL/Columbia
FPHX DesignR. Yarema
FNAL,LANL,Columbia
FPHX QAR. Yarema
FNAL, LANL
CablingD. Fields
UNM
Flex CableD. Fields
UNM
HDIM. Hoferkamp
UNM, Columbia
FibersD. Fields
UNM
WedgeD. WinterColumbia
Wedge AssemblyD. Winter/TBD
Columbia, NMSU,UNM
Wire BondD. Winter/TBD
Columbia
Wedge QAD. Winter/TBD
Columbia, NMSUUNM
MetrologyD. Winter/TBD
Columbia
IntegrationMechanics
R. PakBNL
Mech StructuresD. LeeLANL
AssemblyInstallation
S. PateNMSU
Disk AssemblyS. Pate/PD
NMSU
Disk MetrologyS. Pate/PD
NMSU
Ancillary ServiceR. PakBNL
Cage AssemblyS. Pate/PD
NMSU
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3407/10/07
D. M. Lee, LANL
Scientific resources and Manpower
Institution Construction Responsibilities Post Construction ResponsibilitiesBARC, Mumbai, India Simulations Data Analysis
Brookhaven National Laboratory(BNL physics, C-AD)
FVTX detector integration into PHENIX, E.S.H&Q, commissioning
Data Analysis
CEA, France Offline Data Analysis, Software
Charles University, Prague, Czech Republic Sensor, Software Data Analysis
Czech Technical University, Prague, Czech Republic Sensor, Software Data Analysis
Columbia University Wedge and sensor QA, FPHX, commissioning Data Analysis, Calibrations, Software
High Energy Accelerator Research Organization (KEK), Tsukuba, Japan
TBD Data Analysis
Iowa State University LVL-1 Data Analysis
Institute of Physics, Academy of Science, Prague (Czech) Sensor, software Data Analysis, Software
Kyoto University, Kyoto 606, Japan TBD Data Analysis, Software
Los Alamos National Laboratory Project ManagementDAQ electronics, FPHX, commissioningMechanical systemOversight of the mechanical system
Data Analysis, Calibrations, Software
New Mexico State University Simulation study, wedge, disk, cage assembly,commissioning Data Analysis, Calibrations, Software
University of Jyvaskyla, Finland TBD Data Analysis, Software
University of New Mexico HDI, flex cabling, Sensor Q/A and testing, commissioning Data Analysis, Calibrations, Software
Yonsei University, Seoul, Korea TBD Data Analysis, Software
7-2-2007 Draft
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3507/10/07
D. M. Lee, LANL
Infrastructure and Facilities
• Columbia – Electronics lab and test equipment, 400 sq ft clean room
• Czech – Electronics lab and test equipment, clean room
• LANL – Electronics lab and test equipment, 600 sq ft clean room
• UNM – 256 sq ft clean room, probe station, test equipment
• BNL – lab space, measurement facilities
LANL Clean Room UNM Clean Room Columbia Clean Room
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3607/10/07
D. M. Lee, LANL
Issues and Concerns
• FPHX is new and the highest risk item – will require careful attention
• Integration – VTX/FVTX integration– Strip layers still being designed– Big wheel electronics
• Electrical – grounding and shielding
• Extensive system tests will be required
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3707/10/07
D. M. Lee, LANL
Backups
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3807/10/07
D. M. Lee, LANL
Schedule
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3907/10/07
D. M. Lee, LANL
Schedule
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4007/10/07
D. M. Lee, LANL
Schedule
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4107/10/07
D. M. Lee, LANL
Schedule
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4207/10/07
D. M. Lee, LANL
Cost
Forward Endcap Cost Estimate - FVTXFY2007 dollars
total Cost with2 endcaps R&D R&D Construction(k$) comments contingencyContingency 2008.00 2009.00 2010.00
BNL(k$) LANL(K$)Mechanical ladder and support structure 50 100 416 HYTEC Estimate 0.26 523.92 523.92Alignment and Assembly jigs 72 engineering estimate 0.23 88.80 88.80Silicon Sensor 50 purchase 410 CIS and ON quotes, 10% spare, 80% yield0.26 516.60 516.60 setup and masks 30 CIS and ON quotes sensor Q/A and testing 50 University students + engineer 0.16 58.00 58.00PHX chip, tested 295 engineering run 240 FNAL estimate 0.36 326.40 326.40 testing 50 FNAL tech 0.16 58.00 58.00attach HDI to backplane 30 engineering estimate 0.22 36.60 36.60attach sensor 30 engineering estimate 0.22 36.60 36.60wire bond assembly 55 188 Promex quote 0.26 236.88 236.88test wedge assembly 40 engineering estimate 0.22 48.80 48.80ROC electronics 243.5 preproduction proto 73.3 engineering estimate 0.36 99.69 99.69 production 443.19 engineering estimate 0.36 602.74 602.74 Q/A 20 engineering estimate 0.14 22.80 22.80FEM electronics 246.5 preproduction 93.13 engineering estimate 0.36 126.66 126.66 production 323.18 engineering estimate 0.36 439.52 439.52 Q/A 20 engineering estimate 0.14 22.80 22.80Racks,LV,HV,DCM,install 81 existing designs 0.12 91.02 91.02slow controls 5 existing designs 0.01 5.06 5.60calibration system 22 Assemble endcap 90 techs and students 0.26 113.40 113.40Electronics Integration 250 Engineer 0.14 285.00 95.00 95.00 95.00Mechanical Integration 250 Engineer 0.14 285.00 95.00 95.00 95.00HDI bus 40 111.4 422 HDI, 10% spares, $250 ea. 0.25 139.04 139.04flex cables, sensor to ROC 25 51.2 784 flex, 2% spares, $42 ea. 0.13 57.64 57.64fibercables, ROC-FEM 3 31.2 56ea. -12 and 8 channel units 0.15 35.83 35.83lab equipment 100 probe, test equipment 0.1 110.00 110.00Management 200 0.14 228.00 76.00 76.00 76.00
total 345 815 3668.6 0.25 4594.80 1573.73 2545.59 476.02Inflation adjusted(.035 per year) 4883.04 1628.81 2726.33 527.91
BNL overhead 18%LANL overhead and GRT 19.5% All labor fully burdened
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4307/10/07
D. M. Lee, LANL
LANL LDRD-DR - $589.9k expected ( to date) finish
• DAQ Interface Modules - $489.9k ($100.9k) Jan2008
• Mechanical design - $100k ($100k) Apr2007
LANL Heavy Ion Program - $130k
• Mechanical design - $130k ($130k) Apr2007
BNL R&D funds - $345k
• FPHX design and Prototype - $295k ( $67k) Jul2008
• Mechanical prototype - $50k ($0k) Jan2008
Czech Institute of Physics, Academy of Sciences
• Sensor – prototype finished – contribution
R&D Costs Associated for FVTX
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4407/10/07
D. M. Lee, LANL
Disk Detail
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4507/10/07
D. M. Lee, LANL
VTX – FVTX IntegrationThe need began 2 years ago
But we found this 2 months ago
Interference!
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4607/10/07
D. M. Lee, LANL
Funding Profile
0
500
1000
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FY06 FY07 FY08 FY09 FY10
Fiscal Year
$k
R&D
Construction
Funding Profile
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4707/10/07
D. M. Lee, LANL
Manpower Fraction
Manpower Fraction
Manpower
Materials65%35%