goal & requiremnts -...
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Goal & Requiremnts
• Dedicated R2E Session in Chamonix 2010
• There we’ve to present a draft ‘long-term plan’
• That leaves us ~2 months, i.e., 4-5 R2E meetings
• For a reasonable ‘proposal’ many things are unknown
or pending
• We’ve to put the focus on filling the gaps as much as
possible
October 21st 2009 1Requirements for R2E Long-Term Plan
Long-Term Plan Strategy• Early measurements of radiation levels, experience during operation
(observed failures) and updated simulations define criticality and a rough
time limit when shielding mitigation actions will reach their limits– Problem: until end of December we’ll (‘hopefully’) not learn much
• Solutions for all critical areas are studied in parallel and prepared whenever
possible – Shielding & Relocation– Problem: until end of December we don’t have enough time
• Action plan with instructions on how to deal with a situation where
equipment may fail if new civil engineering turn out not to be possible– Proposed by S. Weisz during the last meeting -> additional shielding?, reduced
intensity?, local relocation?
• New equipment to be installed in critical areas has to follow requirements
defined by a new radiation policy for the accelerator sector (design, testing,
redundancy,…)– Problem: getting a final Policy (even advanced draft) by January is challenging
October 21st 2009 2Requirements for R2E Long-Term Plan
To get a consistent proposal by Chamonix2010 is a CHALLENGE
LHC Tunnel Requirements• Known problems:
– New WordFIP (issue solved for nQPS), i.e., problematic for new equipment
and ?replacements?
– SEE failure of BLM card -> however fail safe
– BPM intensity card (required for low intensities only)
– BPM uFIP cards -> not an issue as handled through orbit feedback
• Unknown problems:
– What did the past measurements miss?
– They will show up during operation or future test-campaigns
(what is required? – Daniel, Thijs?)
• All new equipment requires a full system design, testing (components
and system) and final approval (review) by the RadWG
• Missing:
– Update simulation studies for DS and ARC (in the moment we have a
range of ~three orders of magnitudes - FLUKA Team (in the moment low in
the priority list)
• Anything else?
October 21st 2009 3Requirements for R2E Long-Term Plan
Point 7 Requirements• What are the radiation levels in the RR73/77 and UJ76?
-> Operation
• Option to temporarily relocate betatron collimation to Point-3 (see memo)
• UJ76:
– How effective is the installed shielding wall (further improvement possible?)
– Relocation of equipment when possible and prepared
– Missing: • TZ76 remaining preparations – Sylvain?
• SafeRoom final solution (if shielding is not sufficient)
• Refined priority list of equipment (if necessary) – Thijs?
• Remaining cost estimate
• Ongoing simulations for additional absorbers – Markus
– ??? If additional absorbers and observed radiation levels proof possible –
do we stop the relocation ???
• RR73/77:
– Verification of shielding effectiveness during operation
– Missing:• Relocation options? – Sylvain, Anne-Laure?
• Related cost estimate
• Could additional absorbers also help there? – Markus
• Anything Else?
October 21st 2009 4Requirements for R2E Long-Term Plan
Point 8 Requirements• What are the radiation levels in the UX85b and the US85?
-> Operation
• US85:
– How effective is the installed shielding wall for the Safe-Room (further
improvement possible and to be decided on)
– Space available and identified for full relocation of equipment
– Final location and required shielding for Cryo-Equipment identified
– Cost estimate for cryo-removal exists
– Equipment inventory as complete as it gets
– Missing: • Integration study for full relocation – Anne-Laure?
• Refined priority list of equipment (if necessary) – Thijs?
• Order pending for cryo cabling – Serge (green light from Roberto/Markus?)
• Order pending for remote valve controllers? – Serge (green light from Roberto/Markus?)
• Remaining cost estimate
• Updated simulations for more detailed studies (final layout, ULs and low-E neutrons, UW…)
– FLUKA Team (in the moment low in the priority list)
• What to do with the remaining equipment (in case problematic): transformers,… and UW
• TDI/TCTVB and maze to UA to be kept in mind (some FLUKA simulations ongoing)
• Anything Else?
October 21st 2009 6Requirements for R2E Long-Term Plan
TI2 TI8 Requirements• What are the radiation levels in the UJ23/UJ87 and the
adjacent UAs?
-> Operation
• UJ23/UJ87:– New shielding walls installed - How effective are they? (further
improvement possible and to be decided on)
– Missing: • What will be the real operation load (dumps on the TED, losses on collimators)
– Operations, Ralph?
• Updated simulations for more detailed studies (current layout, shielding
options, losses on collimators, low-E neutrons) – FLUKA Team (Ketil’s next
step after collimation)
• Anything Else?
October 21st 2009 8Requirements for R2E Long-Term Plan
Point 1 Requirements• What are the radiation levels in the UJ14/16 and the adjacent ULs?
-> Operation
• Equipment inventory to be performed – PointOwners, Giovanni
• UJ14/16:
– First shielding layout studied through ICL
– Missing: • Updated simulations for more detailed shielding studies – FLUKA Team
• RR13/17:
– Past shielding proposal exists
– Missing: • Integration study for shielding proposal – Anne-Laure?
• Advanced relocation option – Sylvain?
• Refined priority list of equipment (if necessary) – Thijs?
• Remaining cost estimate
• Updated simulations for more detailed shielding studies – FLUKA Team
• UPS14/16:
– Equipment was tested at CNGS? – Daniel, Thijs?
– Missing: • Updated simulations – FLUKA Team
• Anything Else?
October 21st 2009 9Requirements for R2E Long-Term Plan
Point 5 Requirements• What are the radiation levels in the UJ56 -> Operation
• Equipment inventory almost final – PointOwners, Giovanni
• UJ56:
– First shielding proposal exists (limited effectiveness for first floor!)
– Missing: • Advanced relocation option – Sylvain?
• Refined priority list of equipment (if necessary) – Thijs?
• Remaining cost estimate
• Updated simulations for more detailed shielding studies – FLUKA Team (currently low in
priority)
• RR53/57:
– shielding proposal exists
– Missing: • Integration study for shielding proposal – Anne-Laure?
• Advanced relocation option – Sylvain?
• Refined priority list of equipment (if necessary) – Thijs?
• Remaining cost estimate
• Updated simulations for more detailed shielding studies – FLUKA Team
• UPS56:
– Equipment was tested at CNGS? – Daniel, Thijs?
– Missing: • Updated simulations – FLUKA Team
• Anything Else?October 21st 2009 12Requirements for R2E Long-Term Plan
Point 4 Requirements• What are the radiation levels in the UX45
-> Operation• Equipment inventory to be performed – PointOwners, Giovanni
• UX45:
– Possible: • Simulation update when residual gas-densities are measured – FLUKA Team
• Anything Else?
October 21st 2009 14Requirements for R2E Long-Term Plan
Point 4
UX45
PROBLEMATIC ONLY IF
LOSSES OR BEAM-GAS
DENSITIES ARE HIGHER
THAN EXPECTED
October 21st 2009 15Requirements for R2E Long-Term Plan
Point 6 Requirements• What are the radiation levels in the UX65
-> Operation• Equipment inventory to be performed – PointOwners, Giovanni
• UAs:– First shielding of ducts
– Monitoring prepared to have an early check of radiation levels
– Possible:• Additional shielding of the ducts
• Simulation update including the streaming through the duct – FLUKA Team
• UX65:
– Possible: • Simulation update when residual gas-densities are measured – FLUKA Team
• Anything Else?
October 21st 2009 16Requirements for R2E Long-Term Plan
Point 6
UX65
PROBLEMATIC ONLY IF
LOSSES OR BEAM-GAS
DENSITIES ARE HIGHER
THAN EXPECTED
October 21st 2009 17Requirements for R2E Long-Term Plan
Furthermore• Access Gates – shut-down during opertions – Rui
• Additional shielding penetrations and radiation levels (ducts
between RAs and UAs) -> depend on final residual gas
densities and streaming
• What to do when low-Energy neutrons become an issue
October 21st 2009 18Requirements for R2E Long-Term Plan
Not To Forget – Medium Termas soon as time windows appear:
• Early Relocations of identified critical equipments (Fire/ODH,
Timing, Remote Reset, PIC/WIC,…)
• New WordFIP and DeriveFIP development
• Additional shielding installation (preparations)
• Removal (or local relocation) of spare parts, especially when
under power
• Radiation tests of remaining components
• Further improvement of monitoring (battery driven RadMons,
next Generation RadMons)
• Check of remaining areas currently considered as not critical
(during operation)
October 21st 2009 19Requirements for R2E Long-Term Plan
Planning Constraints
• Current Schedule:
Operation:
Shut-Downs:
Operational Stops:
• Later Start-Up:
• Additional Interruptions:
• Earlier Stop of 2009/2010 Operation:
• or something else?
October 21st 2009 20Requirements for R2E Long-Term Plan
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2009 2010 2011 2012