HIE-ISOLDE Project:Status Report

EXTRA COSTS AND ADDITIONAL RESOURCES

CERN, 29 January 2013Yacine Kadi

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Phase 1 Updated Schedule

Initially planned to start in May 2015, the Physics Program at 5.5 MeV/u is now expected to start in October 2015.

The above schedule is could be affected by unforeseen emergency activities that could arise during LS1.

Reprioritization of phase 2 and 3 is unavoidable.

2013 2014 2015J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D

LS1 & shutdowns

Refurbishment of the old ALEPH Cryo-Plant

Compressor installation and commissioning

Cryo-plant installation (cold box and transfer line)

Cryo-plant commissioning

HIE-ISOLDE SC Linac

Cryomodule 1 Tests (SM18)

Cryomodule 2 Tests (SM18)

Cryomodule 1&2 installation (ISOLDE)

Cryomodule 1&2 Commissioning (ISOLDE)

HIE-ISOLDE High-Energy Beam Transfer Lines

Power converters installation & Commissioning

Magnet installation & Commissioning

BI installation & Commissioning (HW)

Vacuum installation & Commissioning

Beam commissioning (phase1)

Start of the Physics at 5.5 MeV/u

2016 2017 2018J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D

LS2 & shutdowns

Physics at 5.5 MeV/u

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Cost: External Funding Phase 1

The missing income of 0.7 MCHF should be covered through new applications: Belgian Big Science Project #2 through K.U. Leuven => Phase-2 Local funds from Sweden through U. Lund COSA EU-FP7-ITN Innovative Doctoral Program 24 man x years

(*) to be considered additional expenses on salaries of 6.0 MCHF (2011-2014) already covered by EU-FP7-ITN Marie-Curie program: CATHI

1.084.845

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CERN Extra Costs Phase 1Department Group Material Personnel R&D Total

BE RF 150.000 190.000 150.000 490.000 ABP 200.000 239.500 70.000 509.500 350.000 429.500 220.000 999.500

EN

CV 727.000 727.000 EL 44.000 44.000 HDO 100.000 100.000 HE 120.000 120.000 ICE 200.000 200.000 STI 301.000 301.000 1.172.000 320.000 0 1.492.000

GS SEM 400.000 400.000

TE

CRG -2.023.000 (*) -2.023.000 MPE 100.000 100.000 MSC1 250.000 250.000 MSC2 133.000 133.000 VSC1 310.000 150.000 460.000 VSC2 260.000 173.000 433.000 -1.380.000 583.000 150.000 -647.000

542.000 1.332.500 370.000 2.244.500

(*) re-use of ALEPH cryo-plant

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Missing Resources for Phase 1For the CRYOMODULE: HR needs (8 man years)

All of these needs (the 5 man years listed above) have been filled by redeploying personnel from other projects. However, a short-term (3 year LD contract) position is requested to ensure the continuation of the experienced Mechanical Engineer currently assigned to the HIE-ISOLDE project beyond July 2013.

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Missing Resources for Phase 1For the CRYOGENIC PLANT: HR Needs (2.3 man years) HR needs are estimated to a total of 8.3 man years for the period (2013-2015).

The need is for Engineers and technicians to be involved in “Cold box reinstallation” and “Compressor station reinstallation” mainly in the activities of: Project engineer, Mechanics/drawing, Process control, Instrumentation and Commissioning.

All of these needs but, 2.3 man years, have been secured for the project.

For the Beam Instrumentation: HR Needs (2 man years) HR needs are estimated to a total of 2 man years during the period (2013-2015).

Two electronic engineers are needed for a period of 12 months to develop: (i) the front-end analogue electronics for the Faraday Cup (in intensity and profile measurement modes) and the Silicon detector and (ii) the motion control for the beam diagnostic boxes.

All of these needs will be filled by redeploying personnel from other projects.

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CRYOMODULE: Status

Done In progress PendingActive components Mechanical & cryogenics

interfacesAssembly procedures redaction, current leads

Quench protection system,RF interfaces

Alignment Concept and procedures Adjustment mechanism designJacks procurement

Detailed design, drawings of supporting frame assembly

Vacuum Concept, interfaces, instru. and product identification

Interfaces drawingsVacuum vessel drawings

Procurement and contract follow-up

Cryogenics Concept, procedures, reservoir drawings, instrumentation list

Aleph fridge compatibility studyThermal shield specifications redaction

Response to cryogenics stop scenario. Thermal shield drawings

Survey Concept, interfaces Targets definition Detailed design of supports

Assembly Concept, general assembly sequence

Clean room procurementDetailed procedure redaction

Tooling detailed design

Instrumentation Requirements - Selection, procurement, installation

Safety Risk identification, calculations Products selection Procurement, installation

Contracts follow-up - Adjustment mechanism, helium reservoir

Vacuum vessel, thermal shield, supporting frame, bellows, instrumentation, tooling

General Conceptual design 100% Detailed design 60% Detailed drawings 20%

Priorities Start procurement processes for components

requiring long delays Validate last active components solutions Instrumentation consideration

Jan-12 Feb-12 Mar-12 Apr-12 May-12

Coating system Design and procurement of SS cavity support Resistive heating inside the antennaCoatings Q1_9 Q1_10 Q2_6 Q3_1

RF tests Q2_5 Q1_9 Q2_5 LNL coupler+ In Q1_10 Q1_10 CERN couplerQ2_6

Tests RF

Cavity development work in 2012

Jun-12 Jul-12 Aug-12 Sep-12 Oct-12 Nov-12

Coating system Copper screens, IR lamps, 8 kW Power supply 12 kW PSCoatings Q1_11 QP1_2 Q3_2 Q2_7 Q3_3

RF tests Q3_1 Cryo SM18 downQ3_1 + Magnet Q1_11 QP1_2 Q2_7 Q3_3

CRYO OK 37Tests RF 12

3.083 Weeks/test

2Weeks/cavity demonstrated

Parameter/feature HIE ISOLDE cavity CERN

ALPI cavity INFN-LNL

Substrate treatment

SUBU Tumbling, EP then SUBU

Rinsing water pressure

5-6 bar 100 bar

Bake out temperature

670ᵒC (~ sputtering T)

600ᵒC(>sputtering T)

Sputtering temperature

450ᵒC 690ᵒC 300 500 ᵒC

Sputtering pressure

3 10-1 mbar 2 10-1 mbar

Number of layers 12 12-20 layersPower 2 kW11 kW 5 kW (for 2.5 times smaller

surface)Cathode voltage 1 kV 1 kVBias voltage -80 V -120 VTotal electrical energy

46 kWh 15 kWh

Auxiliary electrode 2 cm diameter, bias potential

4 cm diameter (2/3 of inner conductor), rounded, bias potential

Film minimum thickness

To be measured 2 µm

Sputtering gas Argon ArgonVenting gas N2 N2

vacuum joint Viton CF

Cavity Test Results

Comparison of HIE ISOLDE and ALPI QWRs

Data from Legnaro vertical test courtesy of Anna Porcellato

The slope of our best cavities is independent on Q0 and close to the best ALPI cavities (rounded substrates) Q2_7 ranks 9th out of 13 in terms of Q0 and initial slope

Looks as if we were entering the distribution of the LNL cavities from below

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Summary

Most recommendations of the previous cavity review were implemented: Reconsidered mechanical tolerances 4 prototypes available since summer 2012 Focused on dc bias sputtering Dummy copper cavity available and used for sample studies in autumn 2012 Increasing cavity turnaround up to 2 weeks Setting up a backup test place in Orsay Continuing work on cavity ancillaries (tuning plate, coupler, RF line)

Cavity performance improved significantly in one year: 1 MV/m @ 10 W in September 2011 5 MV/m @ 10 W in October 2012

Remaining issues for cavity performance Film thinness on cavity top (high current region) Bad film quality on tip of the inner conductor (peak E field emission) Stability Statistics

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