May 5, 2004 H.J. Krebs 1
2004 LST Installation Readiness Review
2004 IR-2 Installation Schedule
H.J. Krebs
May 5, 2004
May 5, 2004 H.J. Krebs 2
2004 Installation• Scope of work is located on top & bottom
sextants– Remove 18 layers of RPCs– Install 6 layers of 7/8” thick brass absorber in
layers 5,7,9,11,13 & 15 – 11.5 tons/sextant– Install LST detectors in layers
1,2,3,4,6,8,10,12,14,16,17 & 18– An investigation will be performed at
commencement of this down to determine if the layer 19 RPC can be retained at some functioning level
May 5, 2004 H.J. Krebs 3
2004 Installation• Schedules do not include any time for:
– PPS certification• In the past, this has been 4 days. Presently this is scheduled to begin at the
conclusion of the BaBar schedule – October 15.– Tours and photography sessions
• In 2002, we lost two days to this• If tours or photography sessions are important, they may occur between
midnight and 07:00 or on Sundays– Replacement of any LST detectors that have problems after installation– Any PEP work.– Any BaBar system work
• Assumed that this work will occur on Sundays• Drift Chamber crew may have access to DIRC tunnel at any time without
interference to LST work– Helicoil replacement
• Have had trouble with these in the past• Assume a problem with 1% of helicoils
– Means replacing two helicoils in 2004» Probably a few hours per helicoil replacement
May 5, 2004 H.J. Krebs 5
2004 Installation• Flux return steel
– Side gap plates• Have removed and reinstalled many times• Very confident in schedule for these tasks
– Center gap plates• Have never removed or installed before• Very confident in schedule for these tasks
– Corner plates• Have never removed or installed before• Schedule times for these tasks are an educated guess• Test removal of two corner block bolts in summer 2003
– Somewhat easy to remove– Bolt threads appear to be in excellent condition
• An unbolting/bolting sequence has been developed– Will track bolts for reinstallation into same location
May 5, 2004 H.J. Krebs 6
2004 Installation• Flux Return Steel (cont’d)
– Flux bar• Have never removed or installed before• Requires tapping two holes in each flux bar in field• Schedule times for these tasks are an educated
guess
• Solenoid– External radial support arms
• Have never removed before
– Release magnet supports• Have never done this before
May 5, 2004 H.J. Krebs 8
2004 Installation• Alignment
– Steel position shall be monitored to assure that the barrel assembly is stable
• Survey targets added at strategic locations– i.e., on mid corner blocks to see if structure is becoming egg
shaped• Take periodic measurements
– At beginning for reference– After bolts are loosened on each corner plate– At the beginning of each day– At the beginning of second shift– At the end of each day– At end for final reference
• SLAC survey crew still reviewing what is practical here– Solenoid position
• At beginning for reference• After final connection and loading of supports to assure that
solenoid is located in original position
May 5, 2004 H.J. Krebs 9
2004 Installation• RPC removal
– RPCs are “ripped” out• HV & gas line still connected on BWD end• Time may be lost cleaning the steel gaps of this debris
– Bottom RPCs must be ripped loose, then cut, then pulled, then cut, etc.
• Not enough space in Z to extract in one piece
– RPCs range in weight from approximately 150 pounds for layer 1 to 250 pounds for layer 18
– 3600 sq ft of RPCs will be removed– Cover FWD beamline and detector face for protection
• Make certain not to cover any survey monuments
May 5, 2004 H.J. Krebs 10
2004 Installation• LST hookup & commissioning
– 5 days each for upper & lower layer 18– Continuous checkout for remaining layers during LST installation
process• 10 days lower sextant• 9 days upper sextant
• Where do items go during the installation process?– Flux return steel and bolts to IR-12– Platforms and walkways along service road to Building 611– Main shield wall blocks along the Loop Road– RPCs thrown out in the IR-2 parking lot
• Where do items come from during the installation process?– Steel handling fixtures from IR-12– Elevator platforms from IR-12– Brass absorber plates from IR-12– LST detectors from SLD Collider Hall– Electronics and gas system from SLD Collider Hall– IFR shield wall, structural supports, and earthquake supports from IR-12
May 5, 2004 H.J. Krebs 11
2004 Installation• IFR background shield wall
– New installation – very crane intensive– Requires installation of anchors in south PEP
tunnel ceiling– Requires installation of structural supports
and earthquake supports
May 5, 2004 H.J. Krebs 12
2004 Installation• Schedules are based on:
– Mechanical installation assumes two 8-hour shifts per day, six days per week – very taxing
– LST installation assumes one 10-hour shift per day, six days per week• Mechanical installation team will provide technical support as needed to LST
team during this period– Wireway installation, cabling and gas hookup will be performed on owl
shift– Installation schedules denote IFR/LST work only
• Work by other systems must be performed during owl shift or on Sundays• VESDA system
– For first two weeks, fire techs bring system off every morning (six days/wk) at 07:00
– Beginning third week, fire techs bring system off every afternoon at 15:00 (five days/wk) and Saturday morning at 07:00. Fire techs will respond immediately (15 minutes) to bring system down if needed during the day shift
– Fire department will bring system back on line at 23:00 six days/wk• Security
– There will be no parking allowed during the day shift by the IR-2 delivery area to minimize congestion
May 5, 2004 H.J. Krebs 13
Hall Crew Actual Work Time (Two 8-hour Shifts)Days Actual Work Time
0.05 39 minutes
0.1 1 hour 18 minutes
0.15 1 hour 57 minutes
0.2 2 hours 36 minutes
0.25 3 hours 15 minutes
0.3 3 hours 54 minutes
0.35 4 hours 33 minutes
0.4 5 hours 12 minutes
0.45 5 hours 51 minutes
0.5 6 hours 30 minutes
0.55 7 hours 9 minutes
0.6 7 hours 48 minutes
0.65 8 hours 27 minutes
0.7 9 hours 6 minutes
0.75 9 hours 45 minutes
0.8 10 hours 24 minutes
0.85 11 hours 3 minutes
0.9 11 hours 42 minutes
0.95 12 hours 21 minutes
1 13 hours
May 5, 2004 H.J. Krebs 14
2004 Installation ScheduleID Task Name Duration Start Finish Predecessors
209 SUMMER DOWN 2004 60.95 days Sun 8/1/04 Fri 10/15/04210 Summer Down Begins 0 days Sun 8/1/04 Sun 8/1/04
211 CONTROLLED ACCESS 2 days Sun 8/1/04 Mon 8/2/04
212 SURVEY WORK (Two 8-Hour Shifts) 2 days Sun 8/1/04 Mon 8/2/04213 Post Run Survey 2 days Sun 8/1/04 Mon 8/2/04 210
214 Permitted Access Begins 0 days Mon 8/2/04 Mon 8/2/04 213
215 BEGIN BABAR WORK - END DOORS CLOSED 3 days Sun 8/1/04 Tue 8/3/04216 IFR WORK (Day Shift) 0.45 days Tue 8/3/04 Tue 8/3/04217 Shut Off & Drain IFR Barrel Cooling System 0.15 days Tue 8/3/04 Tue 8/3/04 214
218 Verify LV Fuse Location to Sextants 4 & 1 0.05 days Tue 8/3/04 Tue 8/3/04 217
219 Turn OFF LV & HV 0.05 days Tue 8/3/04 Tue 8/3/04 218
220 Remove DAQ Cables from Sextant 4 to IFBs 0.1 days Tue 8/3/04 Tue 8/3/04 219
221 Clean Up Obsolete RPC Cables 0.1 days Tue 8/3/04 Tue 8/3/04 220
222 LST WORK (Day Shift) 0.3 days Sun 8/1/04 Sun 8/1/04223 Run Cables to FEE 3 and FEE 5 0.15 days Sun 8/1/04 Sun 8/1/04 210
224 Connect LST Cables from Sextant 4 0.15 days Sun 8/1/04 Sun 8/1/04 223
225 ELECTRICAL WORK 1 day Tue 8/3/04 Tue 8/3/04226 Move Electrical Power Outlet on Upper East Platform 1 day Tue 8/3/04 Tue 8/3/04 214
227 OPEN DETECTOR & REMOVE LOWER STEEL 13.95 days Sun 8/1/04 Mon 8/16/04228 HALL CREW WORK (Two 8-Hour Shifts) 4.2 days Sun 8/1/04 Thu 8/5/04229 Open IR-2 Curtain Wall 0.1 days Sun 8/1/04 Sun 8/1/04 210
230 Remove DIRC Cyl, Lead and BWD End plug 0.25 days Sun 8/1/04 Sun 8/1/04 229
231 Transport DIRC Cyl, Lead and BWD End Plug to IR-12 0.1 days Sun 8/1/04 Sun 8/1/04 230
232 Open FWD End Door - East 0.1 days Tue 8/3/04 Tue 8/3/04 231,221,224
233 Remove FWD Lwr East Gap Plate - Transport to IR-12 0.05 days Tue 8/3/04 Tue 8/3/04 232
234 Install EQ Brace - FWD Lwr East 0.15 days Tue 8/3/04 Tue 8/3/04 233
235 Insert Manlift 1 - FWD East 0.05 days Tue 8/3/04 Tue 8/3/04 234
236 Install EQ Brace - FWD Upr East 0.1 days Tue 8/3/04 Tue 8/3/04 235
237 Open Fwd End Door - West 0.1 days Tue 8/3/04 Tue 8/3/04 236
238 Remove FWD Lwr West Gap Plate - Transport to IR-12 0.05 days Wed 8/4/04 Wed 8/4/04 237
239 Install EQ Brace - FWD Lwr West 0.15 days Wed 8/4/04 Wed 8/4/04 238
240 Install EQ Brace - FWD Upr West 0.1 days Wed 8/4/04 Wed 8/4/04 239
241 Open BWD End Door - West 0.1 days Wed 8/4/04 Wed 8/4/04 240
242 Remove BWD Lwr West Gap Plate - Transport to IR-12 0.05 days Wed 8/4/04 Wed 8/4/04 241
243 Install EQ Brace - BWD Lwr West 0.15 days Wed 8/4/04 Wed 8/4/04 242
244 Insert Manlift 2 - BWD West 0.05 days Wed 8/4/04 Wed 8/4/04 243
245 Install EQ Brace - BWD Upr West 0.1 days Wed 8/4/04 Wed 8/4/04 244
246 Open BWD End Door - East 0.1 days Wed 8/4/04 Wed 8/4/04 245
247 Remove BWD Lwr East Gap Plate - Transport to IR-12 0.05 days Wed 8/4/04 Wed 8/4/04 246
248 Install EQ Brace - BWD Lwr East 0.15 days Wed 8/4/04 Thu 8/5/04 247
249 Insert Manlift 3 - BWD East 0.05 days Thu 8/5/04 Thu 8/5/04 248
250 Install EQ Brace - BWD Upr East 0.1 days Thu 8/5/04 Thu 8/5/04 249
251 Detector Open and EQ Braced 0 days Thu 8/5/04 Thu 8/5/04 250
8/1
BBR,Align,PEP
8/2
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,LST
BBR,LST
BBR,ELECT
BBR,HC,Crane
BBR,HC,Crane,BC
BBR,HC,Crane,BC
BBR,HC,FE
BBR,HC,Crane,FE
BBR,HC,Crane,FE
BBR,HC,Crane,FE
BBR,HC,Crane,FE
BBR,HC,FW
BBR,HC,Crane,FW
BBR,HC,Crane,FW
BBR,HC,Crane,FW
BBR,HC,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
8/5
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 15
2004 Installation ScheduleID Task Name Duration Start Finish Predecessors
252 IFR WORK - PREPARE LOWER SEXTANT (Owl Shift) 2.85 days Sun 8/1/04 Tue 8/3/04253 Remove LV Distribution Boxes FWD (4L & 4R) and BWD (4L & 4R) 0.5 days Sun 8/1/04 Sun 8/1/04 210
254 Remove HV Distribution Boxes FWD & BWD - Cut Lines Back to Barrel Steel 0.5 days Sun 8/1/04 Sun 8/1/04 253
255 Turn Off Gas to Sextant 4 0.05 days Mon 8/2/04 Mon 8/2/04 254
256 Disconnect Gas Lines and Cut Back to Barrel Steel 0.05 days Mon 8/2/04 Mon 8/2/04 255
257 Remove Copper Cooling Loops - Sextant 4 0.05 days Mon 8/2/04 Mon 8/2/04 256
258 Open Circumferential Raceway Covers for Sextant 4 0.05 days Mon 8/2/04 Mon 8/2/04 257
259 Open Vertical Raceway Covers Containing Cylindrical HV Cables 0.05 days Mon 8/2/04 Mon 8/2/04 258
260 Remove and Save Temperature Probes 0.25 days Mon 8/2/04 Mon 8/2/04 259
261 Remove Lwr FECs - 5 min/layer * 16 Layers * 4 Gaps 0.75 days Mon 8/2/04 Tue 8/3/04 260
262 Remove Lwr Vertical Raceways 0.5 days Tue 8/3/04 Tue 8/3/04 261
263 Remove LV & DAQ Cables in Cicumferential Raceways 0.1 days Tue 8/3/04 Tue 8/3/04 262
264 IFR Work Complete for Lower Sextant 0 days Tue 8/3/04 Tue 8/3/04 263
265 CRYO WORK - LWR SOLENOID SUPPORTS (Day Shift) 0.85 days Thu 8/5/04 Fri 8/6/04266 Unbolt Lwr External Axial Support Rods - FWD & BWD 0.25 days Thu 8/5/04 Thu 8/5/04 251
267 Remove Radial Support Arm - FWD Lwr East 0.1 days Thu 8/5/04 Thu 8/5/04 266
268 Remove Radial Support Arm - FWD Lwr West 0.1 days Thu 8/5/04 Thu 8/5/04 267
269 Remove Radial Support Arm - BWD Lwr East 0.1 days Thu 8/5/04 Thu 8/5/04 268
270 Remove Radial Support Arm - BWD Lwr West 0.1 days Thu 8/5/04 Thu 8/5/04 269
271 Release External Radial Wedge Support - FWD Upr East 0.05 days Thu 8/5/04 Thu 8/5/04 270
272 Release External Radial Wedge Support - FWD Upr West 0.05 days Thu 8/5/04 Thu 8/5/04 271
273 Release External Radial Wedge Support - BWD Upr East 0.05 days Thu 8/5/04 Thu 8/5/04 272
274 Release External Radial Wedge Support - BWD Upr West 0.05 days Fri 8/6/04 Fri 8/6/04 273
275 Transport Solenoid Radial Support Arms to IR-12 0.1 days Thu 8/5/04 Thu 8/5/04 270
276 Lower Solenoid Supports Released 0 days Thu 8/5/04 Thu 8/5/04 275
277 RIGGING WORK - REMOVE SHIELDING (Day Shift) 9 days Thu 8/5/04 Mon 8/16/04278 Disassemble Shield Wall Blocks 2 days Thu 8/5/04 Sat 8/7/04 276
279 Shield Wall Disassembled 0 days Sat 8/7/04 Sat 8/7/04 278
280 Cut Shield Wall Block for Cable Tray Clearance 1 day Sat 8/14/04 Mon 8/16/04 279FS+6 days
281 HALL CREW WORK - (Day Shift) 2 days Thu 8/5/04 Sat 8/7/04282 Finish Piping on IR-2 Roof 2 days Thu 8/5/04 Sat 8/7/04 276
283 HALL CREW WORK - MISC. PREP WORK (Swing Shift) 2.75 days Thu 8/5/04 Sat 8/7/04284 Remove Remining FWD GAP Plates - Transport to IR-12 0.4 days Thu 8/5/04 Thu 8/5/04 251
285 Remove Remaining BWD Gap Plates - Transport to IR-12 0.4 days Thu 8/5/04 Thu 8/5/04 284
286 Grind Off Lower Cooling Loop Weld Studs - FWD & BWD 0.75 days Fri 8/6/04 Fri 8/6/04 285
287 Drill & Tap FWD Door Tracks for Elevator Platform 0.5 days Fri 8/6/04 Fri 8/6/04 285
288 Cover FWD Barrel Face & FWD Beamline 0.5 days Fri 8/6/04 Fri 8/6/04 287
289 Install Steel Position Dial Indicators & Survey Targets 0.25 days Sat 8/7/04 Sat 8/7/04 288
290 Remove Lower West Electronics House Walkway - Take to Shop 0.1 days Fri 8/6/04 Fri 8/6/04 287
291 Install Upper Electronics House to East Detector Stairway 0.1 days Fri 8/6/04 Fri 8/6/04 290
292 Core Drill FWD Tunnel Ceiling for IFR Shield Wall Support Anchors 1.25 days Fri 8/6/04 Sat 8/7/04 291
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
8/3
BBR,HC,CRYO,FE,FW
BBR,HC,CRYO,Crane,FE
BBR,HC,CRYO,Crane,FW
BBR,HC,CRYO,Crane,BE
BBR,HC,CRYO,Crane,BW
BBR,HC,CRYO,FE
BBR,HC,CRYO,FW
BBR,HC,CRYO,BE
BBR,HC,CRYO,BW
BBR,HC,Crane
8/5
BBR,HC,RIG,Crane
8/7
BBR,Contract
BBR,HC
BBR,HC,Crane,FE,FW
BBR,HC,Crane,BE,BW
BBR,HC,BE,BW,FE,FW
BBR,HC,FC
BBR,HC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 18
2004 Installation ScheduleID Task Name Duration Start Finish Predecessors
293 LST WORK - INSTALL CABLEWAYS & RACKS (Owl Shift) 5 days Fri 8/6/04 Thu 8/12/04294 Install Cable Trays and Raceways 5 days Fri 8/6/04 Thu 8/12/04 290
295 HALL CREW WORK - REMOVE LWR STEEL (Two 8-Hour Shifts) 2.8 days Sat 8/7/04 Wed 8/11/04296 Remove Lwr FWD Center Gap Plate - Transport to IR-12 (incl bolts) 0.2 days Sat 8/7/04 Mon 8/9/04 279,292
297 Remove Corner Plate F3 - Transport to IR-12 (incl bolts) 0.4 days Mon 8/9/04 Mon 8/9/04 296
298 Record Steel Movement 0.05 days Mon 8/9/04 Mon 8/9/04 297
299 Tap East Hole in Lower Flux Bar 0.5 days Mon 8/9/04 Tue 8/10/04 297
300 Remove Corner Plate F4 - Transport to IR-12 (incl bolts) 0.4 days Mon 8/9/04 Mon 8/9/04 297
301 Record Steel Movement 0.05 days Mon 8/9/04 Mon 8/9/04 300
302 Tap West Hole in Lower Flux Bar 0.5 days Mon 8/9/04 Tue 8/10/04 300
303 Install FWD Weld Studs for Incremental Conduit 1 day Tue 8/10/04 Wed 8/11/04 302
304 Remove Corner Plate B3 - Transport to IR-12 (incl bolts) 0.4 days Mon 8/9/04 Tue 8/10/04 300
305 Record Steel Movement 0.05 days Tue 8/10/04 Tue 8/10/04 304
306 Remove Corner Plate B4 - Transport to IR-12 (incl bolts) 0.4 days Tue 8/10/04 Tue 8/10/04 304
307 Record Steel Movement 0.05 days Tue 8/10/04 Tue 8/10/04 306
308 Install BWD Weld Studs for Incremental Conduit 1 day Tue 8/10/04 Wed 8/11/04 306
309 Remove Flux Bar - FWD Bottom - Transport to IR-12 (incl bolts) 0.25 days Tue 8/10/04 Tue 8/10/04 306
310 Lower Steel Removed 0 days Tue 8/10/04 Tue 8/10/04 309
311 BOTTOM SEXTANT DETECTOR REPLACEMENT 22.75 days Wed 8/11/04 Wed 9/8/04312 HALL CREW WORK - REMOVE RPCs (Two 8-Hour Shifts) 10.4 days Wed 8/11/04 Mon 8/23/04313 Transport Lower Elevator Platform Components to IR-2 - Install 0.5 days Wed 8/11/04 Wed 8/11/04 310
314 Remove 18 Layers of RPCs & Dispose (2hr 10min/layer)(Pull & Cut) 3 days Wed 8/11/04 Sat 8/14/04 313
315 Lower RPCs Removed 0 days Sat 8/14/04 Sat 8/14/04 314
316 Deliver LST Modules to IR-2 0.15 days Sat 8/14/04 Sat 8/14/04 314
317 Transport Bottom Brass Absorber Plates to IR-2 (84 Plates) 0.1 days Sat 8/14/04 Sat 8/14/04 316
318 Remove Lower Elevator Platform - Transport to IR-12 0.25 days Mon 8/16/04 Mon 8/16/04 340
319 Install 6 Layers of Brass Absorber - Bottom (51min/plate) 5.5 days Mon 8/16/04 Mon 8/23/04 318
320 Lower Brass Absorber Installed 0 days Mon 8/23/04 Mon 8/23/04 319
321 HALL CREW - REPLACE LOWER STEEL (Two 8-Hour Shifts) 12.35 days Mon 8/23/04 Wed 9/8/04322 Retrieve FWD Bottom Flux Bar From IR-12 - Install 0.25 days Mon 8/23/04 Mon 8/23/04 320,343
323 Retrieve Lower Elevator Platform from IR-12 - Install 0.25 days Mon 8/23/04 Mon 8/23/04 322
324 Install Anchors in FWD Tunnel Ceiling 1 day Mon 8/23/04 Tue 8/24/04 323
325 Load Test FWD Tunnel Ceiling Anchors 0.25 days Tue 8/24/04 Wed 8/25/04 324
326 Install IFR Shield Wall Ceiling Brackets 0.5 days Wed 8/25/04 Wed 8/25/04 325
327 Retrieve Corner Plates F3,F4,B3,B4 from IR-12 0.25 days Wed 8/25/04 Wed 8/25/04 326
328 Remove Lower Elevator Platform - Transport to IR-12 0.25 days Fri 9/3/04 Fri 9/3/04 345,327
329 Install Corner Plate B3 0.5 days Fri 9/3/04 Fri 9/3/04 328
330 Torque Corner Plate Bolts - B3 0.5 days Fri 9/3/04 Tue 9/7/04 329
331 Install Corner Plate - B4 0.5 days Fri 9/3/04 Tue 9/7/04 329
332 Torque Corner Plate Bolts - B4 0.5 days Tue 9/7/04 Tue 9/7/04 331
333 Install Corner Plate F3 0.5 days Tue 9/7/04 Tue 9/7/04 331
334 Torque Corner Plate Bolts- F3 0.5 days Tue 9/7/04 Wed 9/8/04 333
335 Install Corner Plate F4 0.5 days Tue 9/7/04 Wed 9/8/04 333
336 Torque Coner Block Bolts 0.5 days Wed 9/8/04 Wed 9/8/04 335
337 Install Lower Center Gap Plate 0.15 days Wed 9/8/04 Wed 9/8/04 335
338 Lower Steel Replaced 0 days Wed 9/8/04 Wed 9/8/04 337
BBR,LST
BBR,HC,Crane,FC
BBR,HC,Crane,FE
BBR,HC
BBR,MFD,FE
BBR,HC,Crane,FW
BBR,HC
BBR,MFD,FW
BBR,HC
BBR,HC,Crane,BE
BBR,HC
BBR,HC,Crane,BW
BBR,HC
BBR,HC
BBR,HC,Crane,FC
8/10
BBR,HC,Crane
BBR,HC,Crane,FC,BE,BW
8/14
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane,FC
BBR,HC,Crane,FC,BE,BW
8/23
BBR,HC,Crane,FC
BBR,HC,Crane,FC
BBR,HC
BBR,HC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
9/8
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 19
2004 Installation ScheduleID Task Name Duration Start Finish Predecessors
339 LST INSTALLATION WORK (One 10-Hour Shift) 17.35 days Sat 8/14/04 Fri 9/3/04340 Install Layer 18 LSTs 1 day Sat 8/14/04 Mon 8/16/04 316
341 Install 11 Layers of LSTs (1 layer/day) (One 10-hour Shift) 10.1 days Mon 8/23/04 Fri 9/3/04 323
342 LST HOOKUP WORK (Owl Shift) 15.35 days Mon 8/16/04 Thu 9/2/04343 Layer 18 LST Hookup & Checkout 5 days Mon 8/16/04 Sat 8/21/04 340
344 LST Hookup & Checkout 9.1 days Mon 8/23/04 Thu 9/2/04 341SS
345 Lower LSTs Installed and Operational 0 days Thu 9/2/04 Thu 9/2/04 344
346 SCHEDULE ANALYSIS - DO WE PROCEED? 0 days Mon 8/30/04 Mon 8/30/04347 POINT OF COMMITMENT 0 days Tue 9/7/04 Tue 9/7/04348 REMOVE UPPER STEEL 5 days Tue 9/7/04 Sat 9/11/04349 IFR WORK - PREPARE UPPER SEXTANT (Owl Shift) 2.85 days Wed 9/8/04 Sat 9/11/04350 Remove LV Distribution Boxes FWD (1L & 1R) and BWD (1L & 1R) 0.5 days Wed 9/8/04 Wed 9/8/04 337
351 Remove HV Distribution Boxes FWD & BWD - Cut Lines Back to Barrel Steel 0.5 days Wed 9/8/04 Thu 9/9/04 350
352 Turn Off Gas to Sextant 1 0.05 days Thu 9/9/04 Thu 9/9/04 351
353 Disconnect Gas Lines and Cut Back to Barrel Steel 0.05 days Thu 9/9/04 Thu 9/9/04 352
354 Remove Copper Cooling Loops - Sextant 1 0.05 days Thu 9/9/04 Thu 9/9/04 353
355 Open Circumferential Raceway Covers for Sextant 1 0.05 days Thu 9/9/04 Thu 9/9/04 354
356 Open Vertical Raceway Covers Containing Cylindrical HV Cables 0.05 days Thu 9/9/04 Thu 9/9/04 355
357 Remove and Save Temperature Probes 0.25 days Thu 9/9/04 Thu 9/9/04 356
358 Remove Lwr FECs - 5 min/layer * 16 Layers * 4 Gaps 0.75 days Thu 9/9/04 Fri 9/10/04 357
359 Remove Lwr Vertical Raceways 0.5 days Fri 9/10/04 Sat 9/11/04 358
360 Remove LV & DAQ Cables in Cicumferential Raceways 0.1 days Sat 9/11/04 Sat 9/11/04 359
361 IFR Work Complete for Upper Sextant 0 days Sat 9/11/04 Sat 9/11/04 360
362 HALL CREW WORK - REMOVE UPR STEEL (Two 8-Hour Shifts) 4.6 days Tue 9/7/04 Sat 9/11/04363 Remove Solenoid Radial Support Arm - FWD Upr East 0.1 days Wed 9/8/04 Wed 9/8/04 337
364 Remove Solenoid Radial Support Arm - FWD Upr West 0.1 days Wed 9/8/04 Wed 9/8/04 363
365 Grind Off Upper Cooling Loop Weld Studs - FWD & BWD 0.75 days Tue 9/7/04 Tue 9/7/04 347
366 Transport Solenoid Radial Support Arms to IR-12 0.1 days Wed 9/8/04 Wed 9/8/04 364
367 Remove Upr FWD Center Gap Plate - Transport to IR-12 (incl bolts) 0.2 days Wed 9/8/04 Wed 9/8/04 364
368 Remove Corner Plate F1 - Transport to IR-12 (incl bolts) 0.4 days Wed 9/8/04 Thu 9/9/04 367
369 Record Steel Movement 0.05 days Thu 9/9/04 Thu 9/9/04 368
370 Tap East Hole in Upper Flux Bar 0.5 days Thu 9/9/04 Thu 9/9/04 368
371 Remove Corner Plate F6 - Transport to IR-12 (incl bolts) 0.4 days Thu 9/9/04 Thu 9/9/04 368
372 Record Steel Movement 0.05 days Thu 9/9/04 Thu 9/9/04 371
373 Tap West Hole in Upper Flux Bar 0.5 days Thu 9/9/04 Fri 9/10/04 371
374 Install BWD Weld Studs for Incremental Conduit 1 day Thu 9/9/04 Fri 9/10/04 371
375 Install FWD Weld Studs for Incremental Conduit 1 day Fri 9/10/04 Sat 9/11/04 374
376 Remove Flux Bar - FWD Top - Transport to IR-12 (incl bolts) 0.25 days Fri 9/10/04 Fri 9/10/04 374
377 Upper Steel Removed 0 days Fri 9/10/04 Fri 9/10/04 376
378 LST WORK - INSTALL CABLEWAYS & RACKS (Owl Shift) 5 days Tue 9/7/04 Sat 9/11/04379 Install Cable Trays and Raceways 5 days Tue 9/7/04 Sat 9/11/04 347
BBR,LST,Crane
BBR,HC,LST,Crane,FC,BE,BW
BBR,LST
BBR,LST
9/2
8/30
9/7
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
9/11
BBR,HC,CRYO,Crane,FE
BBR,HC,CRYO,Crane,FW
BBR,HC,BE,BW,FE,FW
BBR,HC,Crane
BBR,HC,Crane,FC
BBR,HC,Crane,FE
BBR,HC
BBR,MFD,FE
BBR,HC,Crane,FW
BBR,HC
BBR,MFD,FW
BBR,HC
BBR,HC
BBR,HC,Crane,FC
9/10
BBR,LST
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 20
2004 Installation ScheduleID Task Name Duration Start Finish Predecessors
380 UPPER SEXTANT DETECTOR REPLACEMENT 21.4 days Fri 9/10/04 Fri 10/8/04381 HALL CREW WORK - REMOVE RPCs (Two 8-Hour Shifts) 8.65 days Fri 9/10/04 Tue 9/21/04382 Retrieve Upper Elevator Platform from IR-12 - Install 0.5 days Fri 9/10/04 Sat 9/11/04 376
383 Remove 18 Layers of RPCs & Dispose (1hr 48min/layer) 2.5 days Sat 9/11/04 Tue 9/14/04 382
384 Deliver LST Modules to IR-2 0.15 days Tue 9/14/04 Tue 9/14/04 383
385 Transport Top Brass Absorber Plates to IR-2 (84 Plates) 0.1 days Wed 9/15/04 Wed 9/15/04 384
386 Install 6 Layers of Brass Absorber - Top (42min/plate) 4.5 days Thu 9/16/04 Tue 9/21/04 399
387 Upper Brass Absorber Installed 0 days Tue 9/21/04 Tue 9/21/04 386
388 REPLACE UPPER STEEL (Two 8-Hour Shifts) 11.15 days Wed 9/22/04 Thu 10/7/04389 Retrieve FWD Top Flux Bar From IR-12 - Install 0.25 days Wed 9/22/04 Wed 9/22/04 387,402
390 Retrieve Corner Plates F1 & F6 from IR-12 0.15 days Wed 9/22/04 Wed 9/22/04 389
391 Remove Upper Elevator Platform - Transport to IR-12 0.25 days Tue 10/5/04 Tue 10/5/04 390,404
392 Install Corner Plate F1 0.5 days Tue 10/5/04 Tue 10/5/04 391
393 Torque Corner Plate Bolts - F1 0.5 days Wed 10/6/04 Wed 10/6/04 392
394 Install Corner Plate - F6 0.5 days Wed 10/6/04 Wed 10/6/04 392
395 Torque Corner Plate Bolts - F6 0.5 days Wed 10/6/04 Wed 10/6/04 394
396 Install Upper Center Gap Plate 0.15 days Thu 10/7/04 Thu 10/7/04 395
397 Upper Steel Replaced 0 days Thu 10/7/04 Thu 10/7/04 396
398 LST INSTALLATION WORK (One 10-Hour Shift) 15.25 days Wed 9/15/04 Tue 10/5/04399 Install Layer 18 LSTs 1 day Wed 9/15/04 Wed 9/15/04 384
400 Install 11 Layers of LSTs (1 layer/day) (One 10-hour Shift) 9 days Wed 9/22/04 Tue 10/5/04 389
401 LST HOOKUP WORK (Owl Shift) 14.25 days Thu 9/16/04 Tue 10/5/04402 Layer 18 LST Hookup & Checkout 5 days Thu 9/16/04 Tue 9/21/04 399
403 LST Hookup & Checkout 9 days Wed 9/22/04 Tue 10/5/04 400SS
404 Upper LSTs Installed and Operational 0 days Tue 10/5/04 Tue 10/5/04 403
405 VESDA SYSTEM 3 days Tue 10/5/04 Fri 10/8/04406 Modify VESDA System for LST Electronic Racks 2 days Tue 10/5/04 Thu 10/7/04 404
407 Retest Affected VESDA Zones 1 day Thu 10/7/04 Fri 10/8/04 406
408 PREP FOR DETECTOR CLOSE-UP 6.8 days Thu 10/7/04 Fri 10/15/04409 CRYO WORK ADJUST SOLENOID SUPPORTS (Two 8-Hour Shifts) 1.3 days Thu 10/7/04 Fri 10/8/04410 Deliver Solenoid Radial Support Arms to IR-2 0.1 days Thu 10/7/04 Thu 10/7/04 396
411 Install Solenoid Radial Support Arm - FWD Lwr West 0.1 days Thu 10/7/04 Thu 10/7/04 410
412 Install Solenoid Radial Support Arm - FWD Lwr East 0.1 days Thu 10/7/04 Thu 10/7/04 411
413 Install Solenoid Radial Support Arm - BWD Lwr East 0.1 days Thu 10/7/04 Thu 10/7/04 412
414 Install Solenoid Radial Support Arm - BWD Lwr West 0.1 days Thu 10/7/04 Thu 10/7/04 413
415 Connect Solenoid External Axial Supports - BWD Lwr East & West 0.1 days Thu 10/7/04 Thu 10/7/04 414
416 Connect and Tension Solenoid Axial Support Rods - Lwr FWD West & East East 0.15 days Thu 10/7/04 Thu 10/7/04 415
417 Adjust Solenoid External Radial Support Wedge - Upr Fwd West 0.05 days Thu 10/7/04 Thu 10/7/04 416
418 Adjust Solenoid External Radial Support Wedge - Upr FWD East 0.05 days Thu 10/7/04 Thu 10/7/04 417
419 Adjust Solenoid External Radial Support Wedge - Upr Bwd East 0.05 days Fri 10/8/04 Fri 10/8/04 418
420 Adjust Solenoid External Radial Support Wedge - Upr Bwd West 0.05 days Fri 10/8/04 Fri 10/8/04 419
421 Install Solenoid Radial Support Arm - Upr FWD West 0.1 days Fri 10/8/04 Fri 10/8/04 420
422 Install Solenoid Radial Support Arm - Upr FWD East 0.1 days Fri 10/8/04 Fri 10/8/04 421
423 Connect and Tension Solenoid Axial Support Rods - Upr Fwd West & East 0.15 days Fri 10/8/04 Fri 10/8/04 422
424 Solenoid Supports Adjusted 0 days Fri 10/8/04 Fri 10/8/04 423
BBR,HC,Crane
BBR,HC,Crane,FC,BE,BW
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane,FC,BE,BW
9/21
BBR,HC,Crane,FC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
10/7
BBR,LST,Crane
BBR,HC,LST,Crane,FC,BE,BW
BBR,LST
BBR,LST
10/5
BBR,FT
BBR,FT
BBR,HC,Crane
BBR,HC,CRYO,FW,Crane
BBR,HC,CRYO,FE,Crane
BBR,HC,CRYO,BE,Crane
BBR,HC,CRYO,BW,Crane
BBR,HC,CRYO,BE,BW
BBR,HC,CRYO,FE,FW
BBR,HC,CRYO,FW
BBR,HC,CRYO,FE
BBR,HC,CRYO,BE
BBR,HC,CRYO,BW
BBR,HC,CRYO,Crane,FW
BBR,HC,CRYO,Crane,FE
BBR,HC,CRYO,FE,FW
10/8
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 22
2004 Installation ScheduleID Task Name Duration Start Finish Predecessors
425 HALL CREW WORK - INSTALL IFR SHIELDING (Two 8-Hour Shifts) 3.85 days Thu 10/7/04 Wed 10/13/04426 Deliver IFR Shield Wall Components to IR-2 0.15 days Thu 10/7/04 Thu 10/7/04 414
427 Install FWD IFR Background Shield Wall Supports & Platform 2 days Fri 10/8/04 Tue 10/12/04 422,426
428 Install IFR Shield Wall - Remove Platform 1 day Tue 10/12/04 Wed 10/13/04 427
429 Install Shielding in Shield Wall Cable Tray Opening 1 day Fri 10/8/04 Mon 10/11/04 422
430 Remove Upper Electronics House to East Detector Stairway 0.1 days Wed 10/13/04 Wed 10/13/04 428
431 Replace Lower West Electronics House Walkway 0.1 days Wed 10/13/04 Wed 10/13/04 430
432 RIGGING WORK - ASSEMBLE SHIELD WALL (One 10-Hour Shift) 2 days Wed 10/13/04 Fri 10/15/04433 Assemble Shield Wall 2 days Wed 10/13/04 Fri 10/15/04 431
434 Shield Wall Assembled 0 days Fri 10/15/04 Fri 10/15/04 433
435 HALL CREW WORK - CLOSE DETECTOR (Swing Shift) 5.2 days Thu 10/7/04 Thu 10/14/04436 Deliver BWD End Plug, Lead Horseshoe and DIRC Cylinder to IR-2 0.2 days Thu 10/7/04 Thu 10/7/04 426
437 Install BWD End Plug, Lead Horseshoe and DIRC Cylinder 0.2 days Wed 10/13/04 Wed 10/13/04 436,431
438 Remove EQ Brace - Upr FWD East 0.1 days Wed 10/13/04 Wed 10/13/04 437
439 Remove EQ Brace - Upr Fwd West 0.1 days Wed 10/13/04 Wed 10/13/04 438
440 Remove EQ Brace - Lwr Fwd East 0.1 days Wed 10/13/04 Wed 10/13/04 439
441 Close FWD East End Door 0.05 days Thu 10/14/04 Thu 10/14/04 440
442 Remove Manlift 1 - Fwd West 0.05 days Thu 10/14/04 Thu 10/14/04 441
443 Remove EQ Brace - Lwr FWD West 0.1 days Thu 10/14/04 Thu 10/14/04 442
444 Close FWD West End Door 0.05 days Thu 10/14/04 Thu 10/14/04 443
445 Remove EQ Brace - Upr BWD West 0.1 days Thu 10/14/04 Thu 10/14/04 444
446 Remove Manlift 2 - BWD West 0.05 days Thu 10/14/04 Thu 10/14/04 445
447 Remove EQ Brace - Lwr BWD West 0.1 days Thu 10/14/04 Thu 10/14/04 446
448 Remove EQ Brace - Upr BWD East 0.1 days Thu 10/14/04 Thu 10/14/04 447
449 Remove Manlift 3 - BWD East 0.05 days Thu 10/14/04 Thu 10/14/04 448
450 Remove EQ Brace - Lwr BWD East 0.1 days Thu 10/14/04 Thu 10/14/04 449
451 Close BWD West End Door 0.1 days Thu 10/14/04 Thu 10/14/04 450
452 Close BWD East End Door 0.1 days Thu 10/14/04 Thu 10/14/04 451
453 Close Curtain Wall 0.05 days Thu 10/14/04 Thu 10/14/04 452
454 Detector Closed 0 days Thu 10/14/04 Thu 10/14/04 453
455 PREPARE SOLENOID FOR POWER UP 1 day Thu 10/14/04 Fri 10/15/04456 Magnet Studies 1 day Thu 10/14/04 Fri 10/15/04 452
BBR,HC,Crane
BBR,HC,Crane,FC
BBR,HC,Crane,FC
BBR,HC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
10/15
BBR,HC,Crane
BBR,HC,Crane,BC
BBR,HC,Crane,FE
BBR,HC,Crane,FW
BBR,HC,Crane,FE
BBR,HC,FE
BBR,HC,Crane,FW
BBR,HC,Crane,FW
BBR,HC,FW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,BW
BBR,HC,BE
BBR,HC,Crane
10/14
BBR,CRYO
H1 H2 H1 H2 H12004 2005 2006
May 5, 2004 H.J. Krebs 23
Critical PathID Task Name Duration Start Finish Predecessors
1 SUMMER DOWN 2004 60.95 days Sun 8/1/04 Fri 10/15/042 Summer Down Begins 0 days Sun 8/1/04 Sun 8/1/04
3 CONTROLLED ACCESS 2 days Sun 8/1/04 Mon 8/2/04
4 SURVEY WORK (Two 8-Hour Shifts) 2 days Sun 8/1/04 Mon 8/2/045 Post Run Survey 2 days Sun 8/1/04 Mon 8/2/04 2
6 Permitted Access Begins 0 days Mon 8/2/04 Mon 8/2/04 5
7 BEGIN BABAR WORK - END DOORS CLOSED 3 days Sun 8/1/04 Tue 8/3/048 IFR WORK (Day Shift) 0.45 days Tue 8/3/04 Tue 8/3/049 Shut Off & Drain IFR Barrel Cooling System 0.15 days Tue 8/3/04 Tue 8/3/04 6
10 Verify LV Fuse Location to Sextants 4 & 1 0.05 days Tue 8/3/04 Tue 8/3/04 9
11 Turn OFF LV & HV 0.05 days Tue 8/3/04 Tue 8/3/04 10
12 Remove DAQ Cables from Sextant 4 to IFBs 0.1 days Tue 8/3/04 Tue 8/3/04 11
13 Clean Up Obsolete RPC Cables 0.1 days Tue 8/3/04 Tue 8/3/04 12
19 OPEN DETECTOR & REMOVE LOWER STEEL 13.95 days Sun 8/1/04 Mon 8/16/0420 HALL CREW WORK (Two 8-Hour Shifts) 4.2 days Sun 8/1/04 Thu 8/5/0424 Open FWD End Door - East 0.1 days Tue 8/3/04 Tue 8/3/04 23,13,16
25 Remove FWD Lwr East Gap Plate - Transport to IR-12 0.05 days Tue 8/3/04 Tue 8/3/04 24
26 Install EQ Brace - FWD Lwr East 0.15 days Tue 8/3/04 Tue 8/3/04 25
27 Insert Manlift 1 - FWD East 0.05 days Tue 8/3/04 Tue 8/3/04 26
28 Install EQ Brace - FWD Upr East 0.1 days Tue 8/3/04 Tue 8/3/04 27
29 Open Fwd End Door - West 0.1 days Tue 8/3/04 Tue 8/3/04 28
30 Remove FWD Lwr West Gap Plate - Transport to IR-12 0.05 days Wed 8/4/04 Wed 8/4/04 29
31 Install EQ Brace - FWD Lwr West 0.15 days Wed 8/4/04 Wed 8/4/04 30
32 Install EQ Brace - FWD Upr West 0.1 days Wed 8/4/04 Wed 8/4/04 31
33 Open BWD End Door - West 0.1 days Wed 8/4/04 Wed 8/4/04 32
34 Remove BWD Lwr West Gap Plate - Transport to IR-12 0.05 days Wed 8/4/04 Wed 8/4/04 33
35 Install EQ Brace - BWD Lwr West 0.15 days Wed 8/4/04 Wed 8/4/04 34
36 Insert Manlift 2 - BWD West 0.05 days Wed 8/4/04 Wed 8/4/04 35
37 Install EQ Brace - BWD Upr West 0.1 days Wed 8/4/04 Wed 8/4/04 36
38 Open BWD End Door - East 0.1 days Wed 8/4/04 Wed 8/4/04 37
39 Remove BWD Lwr East Gap Plate - Transport to IR-12 0.05 days Wed 8/4/04 Wed 8/4/04 38
40 Install EQ Brace - BWD Lwr East 0.15 days Wed 8/4/04 Thu 8/5/04 39
41 Insert Manlift 3 - BWD East 0.05 days Thu 8/5/04 Thu 8/5/04 40
42 Install EQ Brace - BWD Upr East 0.1 days Thu 8/5/04 Thu 8/5/04 41
43 Detector Open and EQ Braced 0 days Thu 8/5/04 Thu 8/5/04 42
57 CRYO WORK - LWR SOLENOID SUPPORTS (Day Shift) 0.85 days Thu 8/5/04 Fri 8/6/0458 Unbolt Lwr External Axial Support Rods - FWD & BWD 0.25 days Thu 8/5/04 Thu 8/5/04 43
59 Remove Radial Support Arm - FWD Lwr East 0.1 days Thu 8/5/04 Thu 8/5/04 58
60 Remove Radial Support Arm - FWD Lwr West 0.1 days Thu 8/5/04 Thu 8/5/04 59
61 Remove Radial Support Arm - BWD Lwr East 0.1 days Thu 8/5/04 Thu 8/5/04 60
62 Remove Radial Support Arm - BWD Lwr West 0.1 days Thu 8/5/04 Thu 8/5/04 61
67 Transport Solenoid Radial Support Arms to IR-12 0.1 days Thu 8/5/04 Thu 8/5/04 62
68 Lower Solenoid Supports Released 0 days Thu 8/5/04 Thu 8/5/04 67
8/1
BBR,Align,PEP
8/2
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,IFR
BBR,HC,FE
BBR,HC,Crane,FE
BBR,HC,Crane,FE
BBR,HC,Crane,FE
BBR,HC,Crane,FE
BBR,HC,FW
BBR,HC,Crane,FW
BBR,HC,Crane,FW
BBR,HC,Crane,FW
BBR,HC,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
8/5
BBR,HC,CRYO,FE,FW
BBR,HC,CRYO,Crane,FE
BBR,HC,CRYO,Crane,FW
BBR,HC,CRYO,Crane,BE
BBR,HC,CRYO,Crane,BW
BBR,HC,Crane
8/5
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 24
Critical PathID Task Name Duration Start Finish Predecessors
69 RIGGING WORK - REMOVE SHIELDING (Day Shift) 9 days Thu 8/5/04 Mon 8/16/0470 Disassemble Shield Wall Blocks 2 days Thu 8/5/04 Sat 8/7/04 68
71 Shield Wall Disassembled 0 days Sat 8/7/04 Sat 8/7/04 70
75 HALL CREW WORK - MISC. PREP WORK (Swing Shift) 2.75 days Thu 8/5/04 Sat 8/7/0476 Remove Remining FWD GAP Plates - Transport to IR-12 0.4 days Thu 8/5/04 Thu 8/5/04 43
77 Remove Remaining BWD Gap Plates - Transport to IR-12 0.4 days Thu 8/5/04 Thu 8/5/04 76
79 Drill & Tap FWD Door Tracks for Elevator Platform 0.5 days Fri 8/6/04 Fri 8/6/04 77
82 Remove Lower West Electronics House Walkway - Take to Shop 0.1 days Fri 8/6/04 Fri 8/6/04 79
83 Install Upper Electronics House to East Detector Stairway 0.1 days Fri 8/6/04 Fri 8/6/04 82
84 Core Drill FWD Tunnel Ceiling for IFR Shield Wall Support Anchors 1.25 days Fri 8/6/04 Sat 8/7/04 83
87 HALL CREW WORK - REMOVE LWR STEEL (Two 8-Hour Shifts) 2.8 days Sat 8/7/04 Wed 8/11/0488 Remove Lwr FWD Center Gap Plate - Transport to IR-12 (incl bolts) 0.2 days Sat 8/7/04 Mon 8/9/04 71,84
89 Remove Corner Plate F3 - Transport to IR-12 (incl bolts) 0.4 days Mon 8/9/04 Mon 8/9/04 88
92 Remove Corner Plate F4 - Transport to IR-12 (incl bolts) 0.4 days Mon 8/9/04 Mon 8/9/04 89
96 Remove Corner Plate B3 - Transport to IR-12 (incl bolts) 0.4 days Mon 8/9/04 Tue 8/10/04 92
98 Remove Corner Plate B4 - Transport to IR-12 (incl bolts) 0.4 days Tue 8/10/04 Tue 8/10/04 96
101 Remove Flux Bar - FWD Bottom - Transport to IR-12 (incl bolts) 0.25 days Tue 8/10/04 Tue 8/10/04 98
102 Lower Steel Removed 0 days Tue 8/10/04 Tue 8/10/04 101
103 BOTTOM SEXTANT DETECTOR REPLACEMENT 22.75 days Wed 8/11/04 Wed 9/8/04104 HALL CREW WORK - REMOVE RPCs (Two 8-Hour Shifts) 10.4 days Wed 8/11/04 Mon 8/23/04105 Transport Lower Elevator Platform Components to IR-2 - Install 0.5 days Wed 8/11/04 Wed 8/11/04 102
106 Remove 18 Layers of RPCs & Dispose (2hr 10min/layer)(Pull & Cut) 3 days Wed 8/11/04 Sat 8/14/04 105
108 Deliver LST Modules to IR-2 0.15 days Sat 8/14/04 Sat 8/14/04 106
110 Remove Lower Elevator Platform - Transport to IR-12 0.25 days Mon 8/16/04 Mon 8/16/04 132
111 Install 6 Layers of Brass Absorber - Bottom (51min/plate) 5.5 days Mon 8/16/04 Mon 8/23/04 110
112 Lower Brass Absorber Installed 0 days Mon 8/23/04 Mon 8/23/04 111
113 HALL CREW - REPLACE LOWER STEEL (Two 8-Hour Shifts) 12.35 days Mon 8/23/04 Wed 9/8/04114 Retrieve FWD Bottom Flux Bar From IR-12 - Install 0.25 days Mon 8/23/04 Mon 8/23/04 112,135
115 Retrieve Lower Elevator Platform from IR-12 - Install 0.25 days Mon 8/23/04 Mon 8/23/04 114
120 Remove Lower Elevator Platform - Transport to IR-12 0.25 days Fri 9/3/04 Fri 9/3/04 137,119
121 Install Corner Plate B3 0.5 days Fri 9/3/04 Fri 9/3/04 120
123 Install Corner Plate - B4 0.5 days Fri 9/3/04 Tue 9/7/04 121
125 Install Corner Plate F3 0.5 days Tue 9/7/04 Tue 9/7/04 123
127 Install Corner Plate F4 0.5 days Tue 9/7/04 Wed 9/8/04 125
129 Install Lower Center Gap Plate 0.15 days Wed 9/8/04 Wed 9/8/04 127
131 LST INSTALLATION WORK (One 10-Hour Shift) 17.35 days Sat 8/14/04 Fri 9/3/04132 Install Layer 18 LSTs 1 day Sat 8/14/04 Mon 8/16/04 108
133 Install 11 Layers of LSTs (1 layer/day) (One 10-hour Shift) 10.1 days Mon 8/23/04 Fri 9/3/04 115
134 LST HOOKUP WORK (Owl Shift) 15.35 days Mon 8/16/04 Thu 9/2/04136 LST Hookup & Checkout 9.1 days Mon 8/23/04 Thu 9/2/04 133SS
137 Lower LSTs Installed and Operational 0 days Thu 9/2/04 Thu 9/2/04 136
138 SCHEDULE ANALYSIS - DO WE PROCEED? 0 days Mon 8/30/04 Mon 8/30/04
BBR,HC,RIG,Crane
8/7
BBR,HC,Crane,FE,FW
BBR,HC,Crane,BE,BW
BBR,HC,FC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC
BBR,HC,Crane,FC
BBR,HC,Crane,FE
BBR,HC,Crane,FW
BBR,HC,Crane,BE
BBR,HC,Crane,BW
BBR,HC,Crane,FC
8/10
BBR,HC,Crane
BBR,HC,Crane,FC,BE,BW
BBR,HC,Crane
BBR,HC,Crane,FC
BBR,HC,Crane,FC,BE,BW
8/23
BBR,HC,Crane,FC
BBR,HC,Crane,FC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,LST,Crane
BBR,HC,LST,Crane,FC,BE,BW
BBR,LST
9/2
8/30
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 25
Critical PathID Task Name Duration Start Finish Predecessors
139 POINT OF COMMITMENT 0 days Tue 9/7/04 Tue 9/7/04140 REMOVE UPPER STEEL 5 days Tue 9/7/04 Sat 9/11/04154 HALL CREW WORK - REMOVE UPR STEEL (Two 8-Hour Shifts) 4.6 days Tue 9/7/04 Sat 9/11/04155 Remove Solenoid Radial Support Arm - FWD Upr East 0.1 days Wed 9/8/04 Wed 9/8/04 129
156 Remove Solenoid Radial Support Arm - FWD Upr West 0.1 days Wed 9/8/04 Wed 9/8/04 155
159 Remove Upr FWD Center Gap Plate - Transport to IR-12 (incl bolts) 0.2 days Wed 9/8/04 Wed 9/8/04 156
160 Remove Corner Plate F1 - Transport to IR-12 (incl bolts) 0.4 days Wed 9/8/04 Thu 9/9/04 159
163 Remove Corner Plate F6 - Transport to IR-12 (incl bolts) 0.4 days Thu 9/9/04 Thu 9/9/04 160
166 Install BWD Weld Studs for Incremental Conduit 1 day Thu 9/9/04 Fri 9/10/04 163
168 Remove Flux Bar - FWD Top - Transport to IR-12 (incl bolts) 0.25 days Fri 9/10/04 Fri 9/10/04 166
172 UPPER SEXTANT DETECTOR REPLACEMENT 21.4 days Fri 9/10/04 Fri 10/8/04173 HALL CREW WORK - REMOVE RPCs (Two 8-Hour Shifts) 8.65 days Fri 9/10/04 Tue 9/21/04174 Retrieve Upper Elevator Platform from IR-12 - Install 0.5 days Fri 9/10/04 Sat 9/11/04 168
175 Remove 18 Layers of RPCs & Dispose (1hr 48min/layer) 2.5 days Sat 9/11/04 Tue 9/14/04 174
176 Deliver LST Modules to IR-2 0.15 days Tue 9/14/04 Tue 9/14/04 175
180 REPLACE UPPER STEEL (Two 8-Hour Shifts) 11.15 days Wed 9/22/04 Thu 10/7/04181 Retrieve FWD Top Flux Bar From IR-12 - Install 0.25 days Wed 9/22/04 Wed 9/22/04 179,194
183 Remove Upper Elevator Platform - Transport to IR-12 0.25 days Tue 10/5/04 Tue 10/5/04 182,196
184 Install Corner Plate F1 0.5 days Tue 10/5/04 Tue 10/5/04 183
186 Install Corner Plate - F6 0.5 days Wed 10/6/04 Wed 10/6/04 184
187 Torque Corner Plate Bolts - F6 0.5 days Wed 10/6/04 Wed 10/6/04 186
188 Install Upper Center Gap Plate 0.15 days Thu 10/7/04 Thu 10/7/04 187
190 LST INSTALLATION WORK (One 10-Hour Shift) 15.25 days Wed 9/15/04 Tue 10/5/04191 Install Layer 18 LSTs 1 day Wed 9/15/04 Wed 9/15/04 176
192 Install 11 Layers of LSTs (1 layer/day) (One 10-hour Shift) 9 days Wed 9/22/04 Tue 10/5/04 181
193 LST HOOKUP WORK (Owl Shift) 14.25 days Thu 9/16/04 Tue 10/5/04194 Layer 18 LST Hookup & Checkout 5 days Thu 9/16/04 Tue 9/21/04 191
195 LST Hookup & Checkout 9 days Wed 9/22/04 Tue 10/5/04 192SS
196 Upper LSTs Installed and Operational 0 days Tue 10/5/04 Tue 10/5/04 195
200 PREP FOR DETECTOR CLOSE-UP 6.8 days Thu 10/7/04 Fri 10/15/04201 CRYO WORK ADJUST SOLENOID SUPPORTS (Two 8-Hour Shifts) 1.3 days Thu 10/7/04 Fri 10/8/04202 Deliver Solenoid Radial Support Arms to IR-2 0.1 days Thu 10/7/04 Thu 10/7/04 188
203 Install Solenoid Radial Support Arm - FWD Lwr West 0.1 days Thu 10/7/04 Thu 10/7/04 202
204 Install Solenoid Radial Support Arm - FWD Lwr East 0.1 days Thu 10/7/04 Thu 10/7/04 203
205 Install Solenoid Radial Support Arm - BWD Lwr East 0.1 days Thu 10/7/04 Thu 10/7/04 204
206 Install Solenoid Radial Support Arm - BWD Lwr West 0.1 days Thu 10/7/04 Thu 10/7/04 205
207 Connect Solenoid External Axial Supports - BWD Lwr East & West 0.1 days Thu 10/7/04 Thu 10/7/04 206
208 Connect and Tension Solenoid Axial Support Rods - Lwr FWD West & East East 0.15 days Thu 10/7/04 Thu 10/7/04 207
209 Adjust Solenoid External Radial Support Wedge - Upr Fwd West 0.05 days Thu 10/7/04 Thu 10/7/04 208
210 Adjust Solenoid External Radial Support Wedge - Upr FWD East 0.05 days Thu 10/7/04 Thu 10/7/04 209
211 Adjust Solenoid External Radial Support Wedge - Upr Bwd East 0.05 days Fri 10/8/04 Fri 10/8/04 210
212 Adjust Solenoid External Radial Support Wedge - Upr Bwd West 0.05 days Fri 10/8/04 Fri 10/8/04 211
213 Install Solenoid Radial Support Arm - Upr FWD West 0.1 days Fri 10/8/04 Fri 10/8/04 212
214 Install Solenoid Radial Support Arm - Upr FWD East 0.1 days Fri 10/8/04 Fri 10/8/04 213
9/7
BBR,HC,CRYO,Crane,FE
BBR,HC,CRYO,Crane,FW
BBR,HC,Crane,FC
BBR,HC,Crane,FE
BBR,HC,Crane,FW
BBR,HC
BBR,HC,Crane,FC
BBR,HC,Crane
BBR,HC,Crane,FC,BE,BW
BBR,HC,Crane
BBR,HC,Crane,FC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane
BBR,HC
BBR,HC,Crane
BBR,LST,Crane
BBR,HC,LST,Crane,FC,BE,BW
BBR,LST
BBR,LST
10/5
BBR,HC,Crane
BBR,HC,CRYO,FW,Crane
BBR,HC,CRYO,FE,Crane
BBR,HC,CRYO,BE,Crane
BBR,HC,CRYO,BW,Crane
BBR,HC,CRYO,BE,BW
BBR,HC,CRYO,FE,FW
BBR,HC,CRYO,FW
BBR,HC,CRYO,FE
BBR,HC,CRYO,BE
BBR,HC,CRYO,BW
BBR,HC,CRYO,Crane,FW
BBR,HC,CRYO,Crane,FE
H2 H1 H2 H1 H22003 2004 2005
May 5, 2004 H.J. Krebs 26
Critical Path
ID Task Name Duration Start Finish Predecessors
217 HALL CREW WORK - INSTALL IFR SHIELDING (Two 8-Hour Shifts) 3.85 days Thu 10/7/04 Wed 10/13/04219 Install FWD IFR Background Shield Wall Supports & Platform 2 days Fri 10/8/04 Tue 10/12/04 214,218
220 Install IFR Shield Wall - Remove Platform 1 day Tue 10/12/04 Wed 10/13/04 219
222 Remove Upper Electronics House to East Detector Stairway 0.1 days Wed 10/13/04 Wed 10/13/04 220
223 Replace Lower West Electronics House Walkway 0.1 days Wed 10/13/04 Wed 10/13/04 222
227 HALL CREW WORK - CLOSE DETECTOR (Swing Shift) 5.2 days Thu 10/7/04 Thu 10/14/04229 Install BWD End Plug, Lead Horseshoe and DIRC Cylinder 0.2 days Wed 10/13/04 Wed 10/13/04 228,223
230 Remove EQ Brace - Upr FWD East 0.1 days Wed 10/13/04 Wed 10/13/04 229
231 Remove EQ Brace - Upr Fwd West 0.1 days Wed 10/13/04 Wed 10/13/04 230
232 Remove EQ Brace - Lwr Fwd East 0.1 days Wed 10/13/04 Wed 10/13/04 231
233 Close FWD East End Door 0.05 days Thu 10/14/04 Thu 10/14/04 232
234 Remove Manlift 1 - Fwd West 0.05 days Thu 10/14/04 Thu 10/14/04 233
235 Remove EQ Brace - Lwr FWD West 0.1 days Thu 10/14/04 Thu 10/14/04 234
236 Close FWD West End Door 0.05 days Thu 10/14/04 Thu 10/14/04 235
237 Remove EQ Brace - Upr BWD West 0.1 days Thu 10/14/04 Thu 10/14/04 236
238 Remove Manlift 2 - BWD West 0.05 days Thu 10/14/04 Thu 10/14/04 237
239 Remove EQ Brace - Lwr BWD West 0.1 days Thu 10/14/04 Thu 10/14/04 238
240 Remove EQ Brace - Upr BWD East 0.1 days Thu 10/14/04 Thu 10/14/04 239
241 Remove Manlift 3 - BWD East 0.05 days Thu 10/14/04 Thu 10/14/04 240
242 Remove EQ Brace - Lwr BWD East 0.1 days Thu 10/14/04 Thu 10/14/04 241
243 Close BWD West End Door 0.1 days Thu 10/14/04 Thu 10/14/04 242
244 Close BWD East End Door 0.1 days Thu 10/14/04 Thu 10/14/04 243
247 PREPARE SOLENOID FOR POWER UP 1 day Thu 10/14/04 Fri 10/15/04248 Magnet Studies 1 day Thu 10/14/04 Fri 10/15/04 244
BBR,HC,Crane,FC
BBR,HC,Crane,FC
BBR,HC,Crane
BBR,HC,Crane
BBR,HC,Crane,BC
BBR,HC,Crane,FE
BBR,HC,Crane,FW
BBR,HC,Crane,FE
BBR,HC,FE
BBR,HC,Crane,FW
BBR,HC,Crane,FW
BBR,HC,FW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BW
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,Crane,BE
BBR,HC,BW
BBR,HC,BE
BBR,CRYO
H1 H2 H1 H2 H12004 2005 2006
May 5, 2004 H.J. Krebs 27
Schedule Comments• Additional 4 days of PPS certification at
conclusion of BaBar LST work• Pre-run PEP survey work will follow PPS
certification – 2 days?• SLAC Computing Services outage presently
scheduled for August 16 & 17• Daily meetings will occur at the commencement
of each shift to discuss safety issues and the work list.
• A daily meeting will also occur at 15:00 to discuss schedule progress and conflicts
May 5, 2004 H.J. Krebs 28
Potential Schedule Risks• 10 weeks of scheduled work time is needed to replace RPCs with 6 layers
of brass absorber and 12 layers of LST detectors in both the top and bottom sextants if NOTHING goes wrong
– Some time lost for tours and/or photography is a probability– No time allotted to replace LSTs that are not functioning properly after installation– Many tasks have NEVER been performed previously – could be a long learning
curve– Will lose 1:1 on schedule time for any of the above
• There may be some schedule optimization possible – but not much. From the critical path it is determined that the schedule is:
– Driven by crane usage – 1 crane– Driven by LST installation – 1 installation team– Most everyone is working in the same place – FWD end of barrel
• The IFR background shield wall may be more difficult to install than planned• The schedule assumes the acquisition of key personnel from outside of
SLAC– We believe we can acquire the needed resources through an agency. This is still
an open issue.– There are significant safety concerns and probable negative schedule effects if
key individuals are not acquired.
May 5, 2004 H.J. Krebs 29
Potential Schedule Risks• The deformation of the flux return steel may be more
than shown by analysis– Bolts may not match bolt patterns
• Open Clearance holes in corner blocks
• Our tooling may not work as thought – modify during use– Incorrect CGs on handling fixtures– Malfunction of elevator platforms
• Potential power outages• Our mechanical installation team is aging
– Have some young replacements but not as experienced
• A mechanical breakdown of the crane would have an adverse schedule effect
• I believe the potential risk to the schedule is VERY HIGH