wp 11.5.3: high-beta cavity delivery a wheelhouse astec, stfc daresbury laboratory ess srf...
DESCRIPTION
Outline Delivery Schedule –Project plan –Risk Register –Progress Infrastructure –Cleanroom –Shielding –Cryogenic Plant –Cryogenic System –RF System Quality Assurance SummaryTRANSCRIPT
WP 11.5.3:HIGH-BETA CAVITY DELIVERYA WheelhouseASTeC, STFC Daresbury LaboratoryESS SRF Elliptical Cavities Kick-Off MeetingCEA Saclay15th December 2015
Outline• Delivery Schedule
– Project plan– Risk Register– Progress
• Infrastructure– Cleanroom– Shielding – Cryogenic Plant– Cryogenic System– RF System
• Quality Assurance• Summary
Outline• Delivery Schedule
– Project plan– Risk Register– Progress
• Infrastructure– Cleanroom– Shielding – Cryogenic Plant– Cryogenic System– RF System
• Quality Assurance• Summary
Original Project Delivery
Revised Project Delivery
Milestone
Description Date
1 Infrastructure preparation start 4/5/152 Infrastructure preparation finish 13/3/173 Niobium procurement start 29/8/164 Niobium procurement finish 16/7/185 Cavity testing procedure training
start4/1/16
6 Cavity testing procedure training finish
26/2/18
7 Cavity procurement start 18/8/17*
8 Cavity procurement finish 6/3/209 Cavity testing start 3/8/1810 Cavity testing finish 25/11/2
011 Cavity shipment start 3/10/1812 Cavity shipment finish 4/12/20
HBCM Assembly at CEA start 5/4/19HBCM Assembly at CEA finish 11/11/
21
Provisional Milestones
Provisional Milestones
* Driven by H-ECCTD qualification at CEA
Milestone
Description Date
1 Infrastructure preparation start 3/8/152 Infrastructure preparation finish 18/8/1
73 Niobium procurement start 20/6/1
64 Niobium procurement finish 16/7/185 Cavity testing procedure training
start4/1/16
6 Cavity testing procedure training finish
26/2/18
7 Cavity procurement start 18/8/17*
8 Cavity procurement finish 6/3/209 Cavity testing start 3/8/1810 Cavity testing finish 25/11/2
011 Cavity shipment start 3/10/1812 Cavity shipment finish 4/12/20
HBCM Assembly at CEA start 5/4/19HBCM Assembly at CEA finish 11/11/
21
Risk RegisterRisk Current Controls Additional Controls
RequiredHOM management • Full understanding of requirements to
be gained from CEA Saclay• Lessons to be learnt from testing of
medium-β cavity by INFN• Cavity fabrication process to be
defined and specified• Vendor qualification to be performed
Procurement timescales • Dedicated resource supplied by SBS• Tight controlled management of
suppliers− Monthly reports
Assess the need to bring forward the procurement of the Nb and cavities
Conflict of resources with other ASTeC and TD projects
• Dedicated team for the production and qualification of cavities
• Personnel to be prioritised for the project
• Regular monitoring and reporting of project progress to ensure any required remedial action with regards to resource can be actioned by ASTeC and TD management.
Interviews to be held as early as possible
Project funding timescales – Major procurements on hold until commitment provided by BIS
• Interim funding to be provided by STFC
• Procurement to be commenced as early as possible
Progress• STFC ESS Project Board approval granted for the programme – July 2015• Programme of work formally started 3rd August 2015• Confirmation from BIS that George Osborne has signed off the ESS
business case (2nd December 2015)– Release of the funds now needs BIS to write a letter to STFC Authority to proceed with major procurements has been agreed by STFC ESS
Project Office• Infrastructure designs and procurement being progressed• Recruitment of ESS project staff progressing
– Cryogenic engineer appointed – Starts 1st Feb 2016– Interviews held for other positions – Offers are being made
• Technical annex has been written and reviewed by ESS– New revision to be progressed– Able to sign TA from a technical point– To be signed by the STFC ESS project office once the IKC has been agreed
Outline• Delivery Schedule
– Project plan– Risk Register– Progress
• Infrastructure– Cleanroom– Shielding – Cryogenic Plant– Cryogenic System– RF System
• Quality Assurance• Summary
SRF Hall
Thin Film Lab Crab Lab
Offices upstairsCavity Goods-In & Out downstairs
He Compressor House
Cleanroom
VTF
Cryo-plant
Full crane coverage
20m
55m
SRF Hall – Cleanroom Layout
Thin Film Lab Crab Lab
Offices upstairsCavity Goods-In & Out downstairs
He Compressor House
Cleanroom
VTF
Cryo-plant
BCP not included in ESS scope
Shielding• Outlined radiation
assessment has been performed
• More detailed assessment is to be undertaken
• To date the concrete thickness is defined – 1.8 m
• Shielding design is still being finalised
• Procurement through central services
Shielding• Outlined radiation
assessment has been performed
• More detailed assessment is to be undertaken
• To date the concrete thickness is defined – 1.8 m
• Shielding design is still being finalised
• Procurement through central services
Cryogenic Plant• Cryogenics plant will consist of:
– He Liquefier (100 l/h)– 5000 l LHe Dewar– Helium Recovery System (10g/s)– Gas Storage
• Tender for Cryogenics Plant now live.
• 3 Companies expected to tender and have had pre tender visits. – Linde Kryotechnik– Air Liquide Advance Technologies– Vorbuchner Cryogenics &
Applications
LindeKryotechnik
Air LiquideAdvance Technologies
• Cryostat options have been assessed
• A horizontal test design is being progressed
• Cryostat is sufficiently large to accommodate the cavities horizontally or vertically
• Aim to test 3 cavities in the cryostat
• Plan to use the cavities own helium vessel to cool it:
• Sufficient condition to enable the cavity to be cooled to 2K
• Easily achieved by filling LHe in its own vessel (with a volume of ~ only 50 l)
Horizontal Tests in a CryostatCryostat Proposed Design
Cryogenic Requirements:• LHe requirement of ~1500 l• Gas handling capacity < 2
g/S• Ancillaries (2K Hex, 2K
pump, distribution pipes, valves, safety devices, etc.)− Significantly simplified − Lower cost
• Design reviewed at TTC meeting− Feedback provided
• Procurement of components has commenced
Horizontal Tests in a CryostatCryostat Proposed Design
Horizontal tests Performance is near final
configuration Automatic leak checks on He
vessel Higher confidence in performance Reduced test duration (quick cool-
down/warm up) Lower operational hazards (due to
lower gas flow/less quantity of LHe)
75% saving on LHe and gas storage
Risks/Issues • Additional assembly steps• Additional leak checks during
assembly Need to understand the cryo load
during F/E or multipactor Need careful QA steps
Horizontal Tests in a CryostatCryostat Proposed Design
19
1. Helium Top Fill Port Add extra CF/ISO flange as collar so that the weld-region is not disturbed
2. Helium bottom Fill CF to Flexible pipe3. Beam Pipe Vacuum Coupler Port (ISO flange via all metal angle valve)4. RF input coupler Beam pipe side flange-25. RF pick up Beam pipe side flange-2 5a (OR) Pick up point 5b6. Mounts for T-sensors? Cu mounts to bolt 4 Cernox on each cavity7. Film Heater 50 WItems 3,4 and 5 factory mounted on the cavityCavity transported in Vacuum or in N2 at what pressure?
1
23
4 5a
5b
Modification
6
7
Cavity InterfacesFor discussion after lunch:-
RF System• Existing VTF test facility is installed
in the Electron Hall (old SRS Outer Hall)
• Capable of performing high gradient validation tests on 1.3 GHz Tesla cavities
Needs to be upgraded to enable testing at 704 MHz
• System has been defined− Robust and versatile system− Low risk as it is an already operational
system• Procurement of components being
progressed• RF amplifier is being sourced
− Need to understand the RF power requirements for F/E or m/p conditions
250W or 500W?Courtesy of Tom Powers (Jlab)Low level block diagram
Outline• Delivery Schedule
– Project plan– Risk Register
• Infrastructure– Cleanroom– Shielding – Cryogenic Plant– Cryogenic System– RF System
• Quality Assurance• Summary
Quality Assurance
Industrial:Nb material
• Company – Provision documentation• STFC – Monitoring of documentation - Approval,
Inspection
Industrial:Cavity
fabrication
• Company – Provision documentation• STFC – Monitoring of documentation (with factory
visits) - Approval, Inspection
STFC:Cavity Testing
• STFC − Provision of cavity documentation and test data
• ESS − Monitoring of documentation (with factory visits) - Approval, Inspection, Inspection
• CEA Saclay − Monitoring of documentation (with factory visits) - Approval, Inspection, Inspection
Quality Assurance• Data management (For discussions
after lunch)– Need a better understanding of what
parameters need to be recordedWhat data has been collected so far on the
prototype cavities tested to date?– Need to understand / agree on how the
data is to be presentedNeed to define the architecture
Outline• Delivery Schedule
– Project plan– Risk Register
• Infrastructure– Cleanroom– Shielding – Cryogenic Plant– Cryogenic System– RF System
• Quality Assurance• Summary
Next Steps• Finalise all the designs for the infrastructure and
complete all the procurements• Continue on-going discussions with potential
suppliers– Defining requirements – on-going
• Commence the tender process for the Nb material– The final material requirements and specification will
need to be understood• Finalise Technical Annex
– Technical sign off– STFC ESS Project Office sign off
Summary• Programme of work has commenced• Infrastructure requirements are being defined
and agreed• Infrastructure procurement is being progressed• Recruitment of ESS production team
progressing well• UK funding agreed - awaiting final BIS sign off• Technical Annex progressing