Wg6 technology for accelerators
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WG6: Technology for Accelerators. Peter McIntosh (STFC Daresbury Laboratory ) Jim Clarke (STFC Daresbury Laboratory) Camille Ginsburg (FNAL) 2 nd PASI Workshop , RAL April 3 - 5, 2013. Overview. PASI #1 Review Topics Achievements During 2012 Plans for PASI #2

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WG6: Technology for Accelerators

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Wg6 technology for accelerators

WG6: Technology for Accelerators

Peter McIntosh (STFC Daresbury Laboratory)

Jim Clarke (STFC Daresbury Laboratory)

Camille Ginsburg (FNAL)

2nd PASI Workshop, RAL April 3 - 5, 2013


Overview

Overview

  • PASI #1 Review Topics

  • Achievements During 2012

  • Plans for PASI #2

    • New Technology Topic Areas

  • Conclusions


Pasi 1 review srf processing

PASI #1 Review – SRF Processing

  • SRF Infrastructure (VTS, HTS, processing):

    • UK users of FNAL facilities (Shakespeare Engineering Ltd cavity?), 1 or 2 week visits

    • 1 or 2 year visits

  • Qualification of Shakespeare by FNAL:

    • Test single cell cavity

    • Test 9 cell cavity

  • CBP processing & potential transfer knowledge/capability to UK.


Pasi 1 review srf linac cavities

DaresburyCryomodule – CW especially interesting:

Visits/commissioning.

ISIS upgrade – SRF linac:

Design study (if required).

Microphonics & Lorentz detuning control, passive/active:

(Especially CW & long pulse)

Expts with Daresburycryomodule and tests at FNAL

Deflecting/Crab cavity (ASTA, PX, LHC, NLS):

Information exchange, identify & exploit opportunities/synergies.

PASI #1 Review – SRF Linac/Cavities


Pasi 1 review asta programme

PASI #1 Review – ASTA Programme

  • ASTA experiments/instrumentation:

    • Information exchange, identify & exploit opportunities/synergies.

    • Carry out (joint) experiments & supply instrumentation/test diagnostics (?).

ASTA

NLS


Pasi 1 review magnets

PASI #1 Review - Magnets

  • PAMELA magnets/integrable optics:

    • Explore synergies with 6D cooling magnets.

    • (Cross cutting opportunity with magnets & muons).

  • Interface between materials science & accelerator application of SC:

    • Examine opportunities at interfaces with other disciplines (surface science, materials science,…)

  • HTS testing, insulation coatings of Bi2212:

    • Investigate interest on interlab exchange of test samples.

  • Exploration of technology for ADSR.


Srf vendor qualification

SRF Vendor Qualification

  • In December 2009 STFC Innovations Mini-IPS (Industry Partnership Scheme) funding secured (1-year):

    • Knowledge exchange of SRF cavity fabrication and qualification with Shakespeare Engineering Ltd.

  • Purpose of the programme to develop the capability of UK industry to produce and validate SRF cavities.

  • Technology would then be directly applicable to future large scale accelerator facilities.

  • Aim was to utilise existing SRF test facilities at Daresbury and Jlab to process and validate the fabricated cavities.

  • Long term plans to provide an opportunity for UK industry to bid for the construction of the SRF systems for major particle accelerators.

  • Competencies gained will provide an opportunity for technology and knowledge transfer and ultimately the entire process would scale to industrial production needs.


Jlab qualification 2010

Jlab Qualification 2010

  • 3 x single cell 1.3GHz SRF cavities fabricated:

    • Spinning of beampipes demonstrated.

  • Verification tests performed:

    • SN01 was successfully tested at Jlab.

    • Targets exceeded 23 MV/m with a Q0 > 1010

    • Accelerating gradient of 28 MV/m with a Q0 = 2.9 x 109 achieved

    • Improvements to baking and BCP processing facility taking place at Daresbury to facilitate testing of SN02.

    • SN03 currently at FNAL undergoing processing prior to test.


Fnal qualification 2012

FNAL Qualification 2012

  • Cavity Preparationfor VTStest:

    • Bulk EP(Argonne/FNAL)

    • 800 C HydrogenDegas

    • Light EP(Argonne/FNAL)

    • No 120 C bake

  • Tests performed at 2K.

  • Initial Qo @ 3 MV/m = 2.2 x 1011

  • Soft MP observed @ 18 MV/m.

  • Repetitive quench @ 25 MV/m, 1.5 x 1010

    • No sign of conditioning.

    • No radiation observed

  • CBP processing currently underway.

  • Acknowledge support from:

    • C Ginsburg – FNAL Project Lead

    • A Rowe – Cavity Processing

    • Curtis Crawford – VTS testing

    • Alex Melnitchouk – Report summary

See: Alan Wheelhouse Talk:

WG6 Session 3, Thursday 4th April 11:00 – 12:30


Lhc cc cryomodule r d

LHC-CC Cryomodule R&D

  • STFC, Lancaster Univ & CERN collaborating to develop Crab Cavity solution for LHC:

    • 4-Rod Crab Cavity (4RCC) – EUCARD

    • Crab Cavity Cryomodule – HL-LHC

  • US-LARP supporting:

    • Ridged-waveguide CC R&D with ODU/Jlab

    • Coaxial CC R&D with BNL

    • CM development progressing with FNAL.

  • CERN require LHC-CC CM to be tested on SPS prior to installation on LHC.

  • CM design developing to match SPS installation and qualification during 2015/16.

  • LHC-CC CM down-selection expected in 2016/17.


Lhc cc cryomodule r d1

LHC-CC Cryomodule R&D

  • SPS space constraints differ from LHC IP locations.

  • Common engineered CM solution being developed by UK team.

  • Review meeting held at FNAL in Dec12:

    • CM engineering issues reviewed.

    • Collaborative opportunities identified with FNAL across both LHC-CC and PXIE CM designs.

See: Shrikant Pattalwar Talk:

WG6 Session 5, Friday 5th April 09:00 – 10:30


New srf cryomodule @ daresbury

New SRF Cryomodule @ Daresbury

  • Collaboration formulated in early 2006 to design and fabricate new CW cryomodule and validate with beam.

  • Dimensioned to fit on the ALICE ERL facility at Daresbury:

    • Same cryomodule footprint.

    • Same cryo/RF interconnects.

    • ‘Plug Compatible’ with existing cryomodule.


Cm integration on alice

CM Integration on ALICE

  • During Mar13 CM successfully cooled to 2K and preparing for high power RF testing.

  • CM will probe fundamental ERL performance capabilities of SRF cavities.

  • >20 MV/m CW operation anticipated, strong synergy with PXIE SRF linac systems:

    • Thermal characterisation.

    • Microphonics sensitivity & suppression.

    • RF control & stability studies.

See: Peter McIntosh Talk:

WG6 Session 4, Thursday 4th April 13:30 – 15:00


Pasi 2 technologies

PASI #2 Technologies

  • RF Control Challenges:

    • PXIE, MICE, ALICE, VELA

      • Microphonics, feedback/feed-forward processes.

  • Diagnostics & Instrumentation (with WG4):

    • PXIE, FETS, ISIS

  • RF System Developments (with WG4):

    • SRF cavity & cryomodules, RFQ’s

      • CW Operation and Thermal Management.

      • Crab/deflecting cavity development.

  • Test Facilities (with WG4):

    • PXIE, FETS, ALICE, EMMA, VELA

      • Serpentine acceleration with EMMA.

      • Magnets and Vacuum Systems.

  • Industrialisation (with WG4):

    • IARC, FNAL, LHC.

    • SRF cavity fabrication/preparation with industry.

 New

 New

 New

 New


Conclusions

Conclusions

  • From PASI #1, collaboration has achieved:

    • Successful SRF qualification of new UK vendor.

    • CW experiments identified for new SRF CM on ALICE.

    • CM development opportunities identified for both LHC and PXIE.

  • New technology areas identified for PASI #2:

    • RF Control Challenges

    • Diagnostics & Instrumentation

    • Test Facilities

    • Industrialisation

  • Anticipate strengthening UK/FNAL collaboration in these respective areas.


Thank you

THANK YOU!


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