CDF Decommissioning Status Jonathan Lewis D&D Task Force 22 November 2011

J. Lewis--CDF Decomminssioning Status2 Schedule (Review) October-December  Secure detector  Recover electronics  Cleanout highbays  Consolidate/remove cabinets  Remove gas racks, motor-generators, etc. December  Demolish mezzanines January  IARC construction begins  No access to west door  Recover PMTs, etc. from detector

Schedule, cont. March-April  Remove cable bridge April  IARC tie-in work on north side  Begin collision hall work Ongoing  Counting room clean-up  Remove process systems  Life safety improvements for tours  IARC integration J. Lewis--CDF Decomminssioning Status3

Status Systems secured  No refrigerants, flammable gas, or HV  All detector power off  Solenoid warm Clean-up in full swing  Priority to recover of items useful to other efforts  Throwing away CDF-specific items as we encounter them  ~30 skids out the door in the past month New lab space for mu2e  2 nd floor work room, main floor welding area  Trying to make more space soon to meet demand J. Lewis--CDF Decomminssioning Status4

5 Gas racks gone Scrap Mezzanine ready for demolition MGs and test magnet ready for removal 1 st floor CR being cleared Status 11/8

Status Today J. Lewis--CDF Decomminssioning Status6

Schedule Status Mostly on schedule  West bay nearly done  Mezzanine demolition delayed to January to accommodate IARC ground breaking  Need west door truck access.  East bay work rearranged  Ahead on gas systems  Behind on cabinet clean out  More control system work than anticipated  First floor counting room pushed earlier to make equipment recovery easier  More equipment recovery work than planned  Collaborators showed up at the end of the run with requests and demands J. Lewis--CDF Decomminssioning Status7

Issues Proposed experiments create significant uncertainty for D&D  Protoplasma  ORKA Cable bridge plan assumed 20-year display phase  Removing bridge before detector makes detector removal trickier If CDF is to be rolled out in the next few years, we should defer cable bridge removal until then  Work is on hold pending guidance from the Director If CDF will be dismantled for experiments, how far do we go with the display plan  Dismount plug? J. Lewis--CDF Decomminssioning Status8

Coordination with IARC Electrical  Freeing up experimental power substation  Moving conduit for doorway Mechanical  Coordinating moves of sprinkler and chilled water pipes for interferences with interconnects, etc. Mezzanine removal Planning (Dervin Allen)  Tours for A&E, contractors, etc.  Locating utilities, electrical circuits  Reduced generator needs during utility work  Evaluating access, connections  Truck access  CDF roof access  etc. etc. etc J. Lewis--CDF Decomminssioning Status9

CY2012 CDF Building Improvements on D&D Budget Main Stairwell  Remove abandoned chilled water pipes  Relocate elevator pump 1 st Floor  Remove abandoned chillers, etc. 2 nd floor  Improve exits  Isolate conference rooms and egress paths from assembly area Collision hall  Sprinklers  Fire doors  Exit lighting J. Lewis--CDF Decomminssioning Status10

Backup J. Lewis--CDF Decomminssioning Status11

Overview PPD is implementing Phase 1 of the DOE-approved decommissioning plan  Remove all hazards related to the experimental program  Put experimental areas on display to be included in Fermilab’s educational visitor program J. Lewis--CDF Decomminssioning Status12

J. Lewis--CDF Decomminssioning Status13 Scope All hazards related to CDF experimental program mitigated 2nd floor, collision hall and adjacent section of Tevatron tunnel ready for tour groups of ≤49 people West high bay cleared for iARC use East high bay prepared for PPD detector development and construction lab Assembly pit prepared for joint PPD/iARC use Office areas and 1 st floor counting room cleaned and ready as adjunct to PPD activities in high-bay 3 rd floor computer room for CDF analysis servers

J. Lewis--CDF Decomminssioning Status14 Counting RoomTheatre Stairs to parking lot West Bay-- IARC: Broom Clean Mezzanine Removed 30’ Deep Pit: Cable Bridge Removed East Bay--PPD: Useful hardware recovered Workspaces readied Collision Hall Access to section of Tevatron tunnel

Plans for Display Theatre  Place for visitors to assemble  Meet scientist?  Movie? Trigger room  Electronics on display  Other displays? Control room  Flashing screens look almost like we are running Collision hall  North and west sides blown open  Plastic covers, view of COT face, etc.  South and east, closed up in running configuration J. Lewis--CDF Decomminssioning Status15

Display Effort Working with Public Affairs and Education Making posters to document our achievements  Mix of hardware and physics  Ben Kiliminster coordinating Interactive activities geared mostly toward middle school  Cosmic-ray test stand, etc. CDF people: Ben Kilminster, Anna Mazzacane, JDL Life safety improvements in tour areas  Doors, walkways  Remove obstructions  Remove halon, sprinkler mods J. Lewis--CDF Decomminssioning Status16

J. Lewis--CDF Decomminssioning Status17 Planned Collision Hall Layout

J. Lewis--CDF Decomminssioning Status18 Storage of components that may have future use Detector Items  They are safe in situ  Not worth labor to pull down if no use identified  Phototubes, Radeka preamps, etc. Shelf Items  Over the years CDF has collected lots of good stuff  What you want for a detector lab (fittings, valves, connectors)  We will sort to keep what is most generally useful  Don’t want building to be a warehouse  Plan for storage mezzanines in pit alcoves without crane coverage  Sufficient space for all lockers now in high-bay

Alcove Plan J. Lewis--CDF Decomminssioning Status19 Stairs N