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Combined

TeV Decommissioning and ORKA Preservation Task Force Meeting

 

 

Mar 2, 2012

 

Agenda

Very short (~ 5 minute) status reports on decommissioning activities:

·         CDF – Jonathan Lewis

·         DZero – George Ginther – interactions with LBNE LAr testing

·         Tevatron – Paul Czarapata – progress toward ODH 0 classification

·         Preliminary cost estimate and schedule for ORKA Preservation activities at CDF – Jonathan Lewis

 

Presentations and Discussions

   Tevatron Status – Paul Czarapata

Paul Czarapata reported that all physical mitigation to make the Tevatron Tunnel ODH 0 classification has been accomplished.  The safety paperwork had been submitted from Jerry Makara to Bill Cooper, chairman of the Tevatron Cryogenics safety panel.  On March 5, Arkadiy Klebaner, Head of the Fermilab Cryogenics Safety Panel, forwarded a draft e-mail from Roger Dixon, Head of Accelerator Division, that the safety documentation had been approved and that the affected areas of the Tevatron, Switchyard, and Pbar were in the process of having their ODH 1 or ODH 2 postings removed.  It is noted that some specific areas in the Accelerator Division will remain ODH areas.

   CDF Status – Jonathan Lewis,  The backup Slides 11 ff contain more CDF Decommissioning and Display

   DZero Status – George Ginther

   DZero Discussion

It is noted that the use of the D0 Assembly Pit for the 35 ton Liquid Argon TPC prototype for LBNE may cause that area, and possibly the D0 Collision Hall, to become an ODH area, which would preclude access by the general public.  For example, the lower level of the LArTF building will become ODH Class 1 when LAr is introduced to the system.  Safety analysis and approval of the design, failure modes, and mitigation before determination of the ODH Classification of these areas.

  

Reference Documents

           

           

Instructions for Connecting to TevDecom WGM from Offsite