BE-RF consolidation

BE-RF CONSOLIDATIONC. Rossi on behalf of the RF Group

Consolidation Day – 12 September 2013

PRESENTATION OUTLINE

Consolidation Needs by Area

• The Meyrin Accelerator Complex

o AD

o LEIR

o Linac2 / Linac3

o PSB

o PS

• SPS

• LHC

Summary tables

Risk Analysis

PRESENTATION OUTLINE

Consolidation Needs by Area

• The Meyrin Accelerator Complex

o AD

o LEIR

o Linac2 / Linac3

o PSB

o PS

• SPS

• LHC

Summary tables

Risk Analysis

PRESENTATION OUTLINE

Consolidation Requests by Area

• The Meyrin Accelerator Complex

o AD

o LEIR

o Linac2 / Linac3

o PSB

o PS

• SPS

• LHC

Summary tables

Risk Analysis

3 MCHF consolidation budget started or approved, rest of consolidation transferred to LIU

3.6 MCHF consolidation budget already approved.

1.7 MCHF consolidation budget already approved.

ADAD Consolidation - HLRF

AD RF system was built to start physics in 2000 by recuperating old RF equipment coming from dismissed accelerators and with the initial perspective of operating until 2012, then extended to 2016 and later.RF amplifiers for the bunch rotation system AD C10 were built around the TH116 RF tube, now out of production, the existing stock may provide still 5 years of operation, depending on the status of spares. With one system the AD can run at 70% of the beam current.

AD C10 AD C02

The renovation of power supplies will improve reliability and maintainability. Consolidation is needed for LLRF and interlocks.

The urgency of the renovation will depend also on the measurements that will be performed on the “stock” of TH116.

ADAD Consolidation - LLRF

The AD LLRF system is of the old analogue type, an upgrade to the new digital standards, already tested on other machines, like PSB, is necessary. The upgrade of the Schottky pick-up electronics can be done at the same time.The upgrade of the transverse dampers can progress in parallel with the renovation of the PSB equipment.

ADAD Stochastic Cooling

The AD stochastic cooling plays a fundamental role in the machine operation.48 RF amplifiers need to be replaced after 30 years of operation; components are obsolete and the amplifiers and RF filters will not withstand additional 20 years of operation.

LINAC2/LIN

AC3Linac2/Linac3 Consolidation - HLRF

The 200 MHz amplifier for the Linac2 RFQ is heavily corroded, no adjustment is possible in this condition. A spare amplifier would be profitable also to the Linac3 IH RF system.

Linac3 Consolidation

The renovation concerns:the LLRF, that will be upgraded to the Linac4 standard;The driver amplifiers for bunchers, debuncher and ramping cavity;The Frank James amplifiers.

SPSSPS Consolidation - New 18 kVAC transformers

Manufactured in 1989, they have an expected lifetime of 20-30 years; an accident happened in 2011. Experts’ review (EDMS 1222075) recommends replacement in medium term.

New HV capacitors

Following an accident in 1997 all capacitors were replaced in 1998. The expected lifetime is 20 years.

HV new cabling (TWC + Dampers)

Upgraded in 90’s, several HV cable faults observed within the last years.Reliability and safety issues require new cables complying with safety standards.

SPSSPS Consolidation – Cooling Pipes

40 years old cooling pipes for SPS RF amplifiers are source of risk for the reliability of RF systems and safety of personnel. Upgrade needed to stainless steel pipes.

YL tube replacement

Richardson decided to stop producing tubes (YL1530, YL1520, YL1440)Half SPS-RF 200 MHz is affectedSector management agreed to move to Thales to provide a ‘pin to pin’ compatible tube

Damper Power Amplifiers Consolidation

• New tube design by suppliers (new grid material);

• Present air cooling is too weak leading in premature tube failures;

• Machine down time and cost impact as tube lifetime is reduced;

• New amplifiers cooling system.

Cooling

• Several faults have been identified due to amplifier to kicker connection

• Improved connection to be studied and implemented

Amplifier to kicker connection

LHC

LHC Consolidation – Additional Spare Cavities

We will now build 6 cavities with He-tank instead of 3, and we will have to work on the spare unit LHC19 (contaminated) and the module HCACSCA000-AC000003 that will be removed from the machine. .

A new LHC module has been agreedFour new spare couplers are needed for this module, including four Double walled Tubes (DT)

LHC 4 FPC for new module LHC Damper Power Amplifiers

Same as for the SPS

SUM

MARY TABLES

BUDGET Summary Table

BC Accel Description 2013 2014 2015 2016 2017 2018 2019 2020

69711SPS OLD

SPS Driver amplifiers128 98

SPS NEW 68 158

69237SPS OLD

TWC800 antennas, couplers, wg237 98 49

SPS NEW 200 135 New SPS YL tubes replacement   1700 1000          New SPS SPS New 18 kVAC transformers       300 1500    New SPS SPS New HV capacitors         500    New SPS SPS new cooling for all amplifiers (EN/CV)           500   New SPS SPS HV new cabling (TWC + DT)           200   New SPS SPS Dampers PA consolidation   100            New LHC LHC Dampers PA consolidation   200            New LHC LHC 4 FPC for new module     150 150 150 150

69815LHC OLD

Spare SC Cavities for LHC13 350 160

LHC NEW 13 800 350 350 New Linac3 Linac3 LLRF migration to Linac4 technology     50 100 150 New Linac3 Linac3/Linac2 200MHz spare amplifier 60

New Linac3 Linac3: replacement of driver amplifiers for buncher, debuncher, and ramping

    20 40

New Linac3 Linac3 101 MHz amplifiers 100 100 50New Linac3 Linac3 Frank James amplifiers     25 New AD AD C10 RF System 1000 1500 1500

New AD AD C02 RF System LLRF and Interlocks + Schottky intensity measurement + Transverse dampers

38 12 30 60 60

New AD AD Stochastic cooling amplifiers and filters 25 1000

SUM

MARY TABLES

RISK ANALYSIS Summary Table

Accel Description P Io Ir If Is ∑i Rs Rs’

SPS YL tubes replacement 4 5 3 3 1 0.7 20 14

SPS SPS New 18 kVAC transformers 3 5 3 3 5 0.7 15 10.5

SPS SPS New HV capacitors 3 5 3 3 5 0.7 15 10.5

SPS SPS new cooling for all amplifiers 2 3 2 2 1 0.7 6 4.2

SPS SPS HV new cabling (TWC + DT) 3 2 2 2 2 0.7 6 4.2

SPS SPS Dampers PA consolidation 2 1 1 1 1 0.7 2 1.4

LHC LHC Dampers PA consolidation 2 1 1 1 1 0.4 2 0.8

LHC LHC 4 FPC for new module 2 3 2 2 1 0.4 6 2.4

Linac3 Linac3 LLRF migration to Linac4 technology 2 2 1 2 1 0.55 4 2.2

Linac3 Linac3/Linac2 200MHz spare amplifier 3 3 1 1 1 1 9 9

Linac3 Linac3: replacement of driver amplifiers for buncher, debuncher, and ramping 3 3 1 1 1 0.55 9 4.95

Linac3 Linac3 101 MHz amplifiers 2 2 2 2 1 0.55 4 2.2

Linac3 Linac3 Frank James amplifiers 2 3 2 1 1 0.55 6 3.3

AD AD C10 RF System 2 5 3 3 1 0.1 10 1

AD AD C02 RF System LLRF and Interlocks 4 2 2 1 1 0.1 8 0.8

AD AD Stochastic cooling amplifiers and filters 4 3 2 2 1 0.1 12 1.2

In the risk analysis Rs’ still includes CNGS, in order to keep coherence with previous analysis.AD Rs’ is obviously low, being AD a “single user” machine, counting for a factor 0.1; however the proposed consolidation is crucial for extending the operation to the next decades.

SUM

MARY CH

ARTSummary Chart

RF Consolidation requested budget profile

2013 2014 2015 2016 2017 2018 2019 20200

500

1000

1500

2000

2500

3000

3500

4000

4500

LHCSPSLinacsAD

SUM

MARY CH

ARTSummary Chart

RF Consolidation budget profile, including approved

2013 2014 2015 2016 2017 2018 2019 20200

1000

2000

3000

4000

5000

6000

PS approvedLHC+approvedSPS+approvedLinacsAD