robert pak doe review jan. 19, 2005. robert pak 1 doe review jan. 19, 2005 vtx hbd phenix central...
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Robert PakDOE Review
Jan. 19, 2005
dxVTX
Robert Pak 2DOE Review
Jan. 19, 2005
VTX
HBD
PHENIX Central Region
From VTX Proposal (dims
in mm)
IntegrateDetector
Upgrades
Robert Pak 3DOE Review
Jan. 19, 2005
HYTEC Structural Results
• GFRP sandwich composite M55J for the base structure• substantial gain in the stiffness to
weight ratio• similar rad length and strength• most widely used standard
• Outer frame structure should be single diameter
• Structural end disks to prevent deformation of the structure under dynamic load inputs
Robert Pak 4DOE Review
Jan. 19, 2005
HYTEC Cooling Results• Use ladder, or stave, concept supported at its ends by composite rings
• Stave structure comprises a C-C thermal plane • OMEGA shaped composite bonded to back of thermal plane adds stiffness • Cooling tube bonded to the back of the C-C thermal plane with C-C tube support
• Use Al cooling tubes 3mm in diameter supplied with a 23 g/s single-phase perfluorocarbon fluid, C5F12
Robert Pak 5DOE Review
Jan. 19, 2005
VTX Spec Sheet
Barrel Section radius length strips/pixel heat(W/cm 2̂) area(cm 2̂) power(W) voltage current(amps)layer 1 2.5 cm 21.8 cm pixel 0.7 W 279 195 1.8V 108layer 2 5 cm 21.8 cm pixel 0.7 W 557 390 1.8V 217layer 3 10 cm 31.8 cm strip 0.35W 1963 687 2.5V 275layer 4 14 cm 38.2 cm strip 0.35W 3403 1191 2.5V 476
total 6202 2463 1076Endcap (north and south) z-start(+-) radius tilt = 22 deg
disk 1 20 cm 6.6 cm pixel 0.1 W 678 21.6 1.8V 12disk 2 26 cm 10.6 cm pixel 0.1 W 1374 34.6 1.8V 19.2disk 3 32 cm 18 cm pixel 0.1 W 2255 47.5 1.8V 26.4disk 4 38 cm 18 cm pixel 0.1 W 2255 47.5 1.8V 26.4
total 6562 151.2 84
Already consider barrel and endcaps• aid to visualizing integration• streamline engineering
For next round with HYTEC
Robert Pak 6DOE Review
Jan. 19, 2005
Mechanical Engineering for VTX
• Core design group assembled• PHENIX BNL Engineer D. Lynch:
• Work on PHENIX central region, which includes VTX• Engineering specific to VTX being done at LANL by
W. Sondheim & J. Boissevain• In consultation with PHENIX BNL engineer (off project)• Point of contact with HYTEC
• D. Lee & R. Pak to provide oversight
Robert Pak 7DOE Review
Jan. 19, 2005
Pretty Picture
From J. Boissevain
Robert Pak 8DOE Review
Jan. 19, 2005
w/ the Endcaps
Robert Pak 9DOE Review
Jan. 19, 2005
Be Beam Pipe• Desirable to get as close as possible to collision vertex
w/o adding considerable radiation length• In discussion w/:
• PHENIX BNL Engineer (P. Kroon)• 0.3 +/- 0.1cm clearance between beam pipe and 1st Si layer to get
VTX concentric with the beam
• CAD Head of Vacuum Group (D. Hseuh)• 3cm diameter probably OK• Require NEG coating
• AP Upgrades Coordinator (W. Fischer)• Physical aperture of at least 5 transverse rms beam sizes (allowing
for 5mm orbit error) is OK
Robert Pak 10DOE Review
Jan. 19, 2005
Be Beam Pipe Quote
Off project
Robert Pak 11DOE Review
Jan. 19, 2005
Mylar Sleeve
• Proper grounding & isolation of Si detector• Image charge from circulating beam• Aluminized Mylar sleeve around Be beam pipe
• Few m’s thick to hold down material budget• Grounded w/ braid through magnet• No interference with other sub-systems; nothing else
between beam pipe and 1st pixel layer
Robert Pak 12DOE Review
Jan. 19, 2005
VTX Mechanical Support Structure
• Frame for barrel & endcaps (HYTEC and LANL)• External support structure in central magnet (BNL)• Mechanical tolerances/distortions:
• < 25 m internally• 100 m relative to the rest of the detector
• From CAD Survey Group (F. Karl):• 50 – 100 m on the bench• 100 – 200 m in the hall
Robert Pak 13DOE Review
Jan. 19, 2005
VTX Mech Support Structure (cont)
• Clamshell Design:• Separates into two halves along the vertical axis
• Modular Design:• Easily removable from IR• Allow for staged instrumentation
• Mounted off of pole tips/nose cone calorimeter• To maintain specified tolerances
Robert Pak 14DOE Review
Jan. 19, 2005
Routing for VTX Services
Power, cooling and signal services are
brought in at both ends,using the entire perimeter
Robert Pak 15DOE Review
Jan. 19, 2005
VTX Auxiliary Systems• Services routed radially at the pole tips:
• Power for Si detectors (proper grounding & isolation):• Si HV & LV power supplies
• Cooling system for Si• Operating temperature: < 10o C
• Improve signal/noise performance• Improve response to radiation dosage
• Dry Air System• Bleed boil off from LN2 buggy into enclosure
• Radiation Monitoring• TLDs & Chipmunks
Robert Pak 16DOE Review
Jan. 19, 2005
Infrastructure for VTX
• Electronics racks• Platforms above central magnet• Cooling for electronics• Power for auxiliary systems (proper grounding &
isolation):• Clean & dirty power• 110V & 208V• UPS
Robert Pak 17DOE Review
Jan. 19, 2005
Mechanical StructureID WBS Task Name Start Duration
209 MILESTONE - Completion of Mechanical Structure Fri 2/16/07 0 days
210 1.4.2 Mechanical Structure Tue 5/3/05 470 days
211 1.4.2.1 Mechanical Structure R&D Tue 5/3/05 140 days
212 1.4.2.1.1 Engineering Design + Simulations Tue 5/3/05 140 days
217 1.4.2.2 Cooling System Mon 2/13/06 90 days
218 1.4.2.2.1 Design Mon 2/13/06 10 wks
219 1.4.2.2.2 Procure Mon 4/24/06 40 days
222 1.4.2.3 Outer Stability Structure Mon 10/3/05 340 days
223 1.4.2.3.2 1st Round Mon 10/3/05 75 days
225 1.4.2.3.3 2nd Round Mon 2/27/06 75 days
227 1.4.2.3.4 procure Mon 9/4/06 100 days
232 MILESTONE - Completion of Mechanical LaddersFri 9/1/06 0 days
233 1.4.2.4 barrel ladder staves Mon 11/14/05 210 days
234 1.4.2.4.1 1st Round ladder staves prototypes Mon 11/14/05 40 days
237 1.4.2.4.2 2nd Round Mon 2/6/06 50 days
240 1.4.2.4.3 procure strip ladders Mon 6/12/06 60 days
245 1.4.2.4.4 procure pixel ladders Mon 6/12/06 60 days
250 1.4.2.5 Barrel Mon 10/3/05 360 days
251 1.4.2.5.2 2nd Round Mon 10/3/05 40 days
253 1.4.2.5.3 procure (barrel) Mon 9/4/06 120 days
258 1.4.2.6 ladder coolant tubes Mon 10/3/05 250 days
259 1.4.2.6.2 1st Round Mon 10/3/05 40 days
261 1.4.2.6.3 2nd Round Mon 2/6/06 40 days
263 1.4.2.6.4 procure Mon 6/12/06 70 days
268 MILESTONE Decision to Procure mechanical laddersFri 6/9/06 0 days
269 MILESTONE Decision to Procure mechanical Fri 9/1/06 0 days
270 1.4.2.7 Mechanical Task Out to Bid Mon 4/17/06 100 days
271 1.4.2.7.1 ladders Mon 4/17/06 2 mons
272 1.4.2.7.2 support structures Mon 6/12/06 3 mons
2/16
9/1
6/9
9/1
Apr Jul Oct Jan Apr Jul Oct Jan Apr Jul Oct Jan Apr Jul Oct Jan2004 2005 2006 2007 2008
Robert Pak 18DOE Review
Jan. 19, 2005
Mechanical Structure Budget
Based on HYTEC cost matrix
Robert Pak 19DOE Review
Jan. 19, 2005
Assembly of VTX
ID WBS Task Name Start Duration
273 MILESTONE - vtx ready for installation Fri 12/14/07 0 days
274 1.4.3 Assembly of ladders onto barrel Mon 6/12/06 395 days
275 1.4.3.1 assembly jig for ladders onto barrel Mon 6/12/06 60 days
276 1.4.3.1.1 design jig Mon 6/12/06 4 wks
277 1.4.3.1.2 fabricate jig Mon 7/10/06 8 wks
278 1.4.3.2 mount pixel ladders on barrel Mon 6/25/07 50 days
279 1.4.3.2.1 align + fix ladders Mon 6/25/07 2 mons
280 1.4.3.2.2 test Mon 7/9/07 2 mons
281 1.4.3.3 mount strip Ladders on barrel Mon 9/3/07 70 days
282 1.4.3.3.1 align + fix ladders Mon 9/3/07 3 mons
283 1.4.3.3.2 test Mon 9/17/07 3 mons
284 1.4.3.4 add outer stability structure barrel Mon 12/10/07 1 wk
12/14
Tech
Tech
Jan Apr Jul Oct Jan Apr Jul Oct Jan2006 2007 2008
Robert Pak 20DOE Review
Jan. 19, 2005
Assembly of VTX Budget
Robert Pak 21DOE Review
Jan. 19, 2005
Infrastructure/InstallationID WBS Task Name Start Duration
285 1.4.4 Infrastructure Thu 12/7/06 144 days
286 1.4.4.1 Installation+support Thu 12/7/06 80 days
287 1.4.4.1.1 Beam-pipe Thu 12/7/06 80 days
288 1.4.4.1.1.1 Procure Beam-pipe Thu 12/7/06 2 mons
289 1.4.4.1.1.2 Beam-pipe support Thu 2/1/07 2 mons
290 1.4.4.1.4 Detector Support Thu 12/7/06 80 days
291 1.4.4.1.4.1 Detector Support in CM Thu 12/7/06 2 mons
292 1.4.4.1.4.2 Installation Fixtures Thu 2/1/07 2 mons
293 1.4.4.2 Services Thu 12/7/06 144 days
294 1.4.4.2.1 Rack Platforms Thu 12/7/06 2 mons
295 1.4.4.2.2 Power+water services for IR, outside of IRThu 12/7/06 3 mons
296 1.4.4.2.3 preparation of IR region Wed 5/2/07 2 mons
297 1.4.5 Installation Tue 5/1/07 214 days
298 IR Open Summer 07 Tue 5/1/07 1 day
299 IR close winter 07 Mon 12/31/07 1 day
300 1.4.5.1 Install vtx in inner region Mon 12/17/07 10 days
301 1.4.5.1.1 Tech Mon 12/17/07 1 wk
302 1.4.5.1.2 survey Mon 12/24/07 1 wk
303 1.4.5.6 preops Mon 1/14/08 6 wks
304 1.4.6 Mechanical system Integration Mon 10/3/05 595 days
305 1.4.6.1 Mechanical System Engineer Mon 10/3/05 595 days
306 1.4.6.1.1 oversight tasks Mon 10/3/05 28.25 mons
307 1.4.6.1.2 Design support from nosecone Thu 1/5/06 12 mons
308 1.4.6.1.3 Design installation fixtures Thu 1/5/06 12 mons
309 1.4.6.1.4 Environmental Safety & Compliance Thu 12/7/06 6 mons
310 1.4.6.1.5 supervise installation Mon 12/17/07 1 mon
311 1.4.6.2 Detailing/drawings Thu 1/5/06 22 mons
Apr Jul Oct Jan Apr Jul Oct Jan Apr Jul Oct Jan Apr2005 2006 2007 2008
Robert Pak 22DOE Review
Jan. 19, 2005
Infrastructure/Installation Budget
Robert Pak 23DOE Review
Jan. 19, 2005
Closing Remarks
• Additional people power:• PHENIX-BNL Operations Group has 8 FTE technicians
and 3 FTE engineers• VTX project will have a number of postdocs & students
participating in these tasks• CA Experiment Support Group provides at least one
mechanical engineer plus trades people (carpenters, riggers and electricians)
Robert Pak 24DOE Review
Jan. 19, 2005
Backups
Robert Pak 25DOE Review
Jan. 19, 2005
VTX Design Criteria for HYTEC • Clamshell Design:
• Separates into two halves along the vertical axis• Detector Coverage:
• Hermeticity: single overlap circumferentially• 160o coverage in each half of barrel section• 4 layers of pixels and/or strip detectors in barrel section• 180o coverage in each half of the endcap sections• 4 layers of pixel detectors in endcap sections
• +/- 40o Envelope maintained around barrel section• Endcap pixel disks, utilities, and barrel detector end support
outside of envelope• Main clamshell support structure inside of envelope, but less
than 0.5% radiation length (RL)
Robert Pak 26DOE Review
Jan. 19, 2005
VTX Design Criteria for HYTEC (cont)• RL of 1% or less for each detector layer (includes:
detectors, structure, and utilities)• Dimensional and structural stability of less than 25 µm
for detectors and 100 µm gravitational structural stability of entire tracker
• Utility Routing:• Along barrel end support for barrel region• Radial at pole tips for the end caps
• Mounting of Tracker:• Off of magnet pole tips• Tracker to behave as a rigid body structure• Operating Temperature: Room temperature (or possibly 0o C)
Robert Pak 27DOE Review
Jan. 19, 2005
HYTEC Cost Matrix
+ 15
+ 20
<10 centigrade
Staging Barrel/Endcap
R&D 2005
DOE Proposal
Updated 1/14/05
Robert Pak 28DOE Review
Jan. 19, 2005
Methods: Contingency
• Design/prototype/testing : 25% contingency each cycle• To cover cost risk that an extra pre-production cycle is
needed • Last design/prototype/testing cycle : 50% contingency
• Testing, assembly, and installation tasks: 50% contingency • Purchases based on vendor quotes: 25% contingency• Other purchases, 50% contingency
Robert Pak 29DOE Review
Jan. 19, 2005
Methods: Overhead
• All numbers quoted for manpower are fully loaded $• Material costs include local overhead + sales-tax• Funds moved from BNL to other institutions charged 9%
BNL admin. overhead