phenix central region

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


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


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


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


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


Jan. 19, 2005

Pretty Picture

From J. Boissevain


Jan. 19, 2005

w/ the Endcaps


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


Jan. 19, 2005

Be Beam Pipe Quote

Off project


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


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


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


Jan. 19, 2005

Routing for VTX Services

Power, cooling and signal services are

brought in at both ends,using the entire perimeter


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


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


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


Jan. 19, 2005

Mechanical Structure Budget

Based on HYTEC cost matrix


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


Jan. 19, 2005

Assembly of VTX Budget


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


Jan. 19, 2005

Infrastructure/Installation Budget


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)


Jan. 19, 2005

Backups


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)


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)


Jan. 19, 2005

HYTEC Cost Matrix

+ 15

+ 20

<10 centigrade

Staging Barrel/Endcap

R&D 2005

DOE Proposal

Updated 1/14/05


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


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

phenix central region

Documents