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Reliability for a waste transmutation ADS Reliability guidelines for an ADS linac Reliability and spoke activities at IPN Orsay Summary Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay CNRS/IN2P3 UNIVERSITÉ PARIS-SUD 11 Fifth International Workshop on the Utilization and Reliability of High Power Proton Accelerators, Mol, Belgium, May 2007 A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

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Page 1: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Development of super-conducting spokecavities for an ADS linac

Aurélien Ponton

Institut de Physique Nucléaire d’OrsayCNRS/IN2P3 UNIVERSITÉ PARIS-SUD 11

Fifth International Workshop on the Utilization and Reliabilityof High Power Proton Accelerators, Mol, Belgium, May 2007

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 2: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Table of contents

1 Reliability for a waste transmutation ADSNeeds for reliabilityBeam line specificationsState of the art of reliability

2 Reliability guidelines for an ADS linacDerating/overdesignRedundancyFault tolerance

3 Reliability and spoke activities at IPN OrsaySC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 3: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Table of contents

1 Reliability for a waste transmutation ADSNeeds for reliabilityBeam line specificationsState of the art of reliability

2 Reliability guidelines for an ADS linacDerating/overdesignRedundancyFault tolerance

3 Reliability and spoke activities at IPN OrsaySC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 4: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 5: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 6: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 7: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 8: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 9: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 10: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Why do we need special reliability ?

Definition of reliability engineering

Facing each component failures of a complex system, such asa driver accelerator, i.e anticipating and monitoring theprobability of these failures to achieve the nominal and requiredbehavior of the system.

Consequences of beam failuresFrequently beam interruptions can seriously damage :

the reactor structuresthe targetthe fuel elements

and also decreasethe plant availability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 11: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Special reliability for the proton beam

Maximum beam intensity 4mA CW on targetProton energy 600MeV

Beam entry VerticallyBeam trip number < 5 per 3 month operation cycle

(exceeding 1 second)Beam stability Energy ±1%

Intensity : ±2% Size ±10%

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 12: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Special reliability for the proton beam

Maximum beam intensity 4mA CW on targetProton energy 600MeV

Beam entry VerticallyBeam trip number < 5 per 3 month operation cycle

(exceeding 1 second)Beam stability Energy ±1%

Intensity : ±2% Size ±10%

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 13: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Special reliability for the proton beam

Maximum beam intensity 4mA CW on targetProton energy 600MeV

Beam entry VerticallyBeam trip number < 5 per 3 month operation cycle

(exceeding 1 second)Beam stability Energy ±1%

Intensity : ±2% Size ±10%

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 14: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Special reliability for the proton beam

Maximum beam intensity 4mA CW on targetProton energy 600MeV

Beam entry VerticallyBeam trip number < 5 per 3 month operation cycle

(exceeding 1 second)Beam stability Energy ±1%

Intensity : ±2% Size ±10%

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 15: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Special reliability for the proton beam

Maximum beam intensity 4mA CW on targetProton energy 600MeV

Beam entry VerticallyBeam trip number < 5 per 3 month operation cycle

(exceeding 1 second)Beam stability Energy ±1%

Intensity : ±2% Size ±10%

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 16: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

Special reliability for the proton beam

Maximum beam intensity 4mA CW on targetProton energy 600MeV

Beam entry VerticallyBeam trip number < 5 per 3 month operation cycle

(exceeding 1 second)Beam stability Energy ±1%

Intensity : ±2% Size ±10%

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 17: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Needs for reliabilityBeam line specificationsState of the art of reliability

LANSCE

Beam failure statistics of theaccelerator facility

Systems responsible for trips anddowntime in the H+ beam

Injector : 77% of the trips and 30% of the downtimeRF system : 8% of the trips but accountable for 23% of thedowntime

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 18: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Table of contents

1 Reliability for a waste transmutation ADSNeeds for reliabilityBeam line specificationsState of the art of reliability

2 Reliability guidelines for an ADS linacDerating/overdesignRedundancyFault tolerance

3 Reliability and spoke activities at IPN OrsaySC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 19: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Component overdesign

Overdesign

Any components of the linac must operate well below theirtechnological upper limit.

For the SC spoke β = 0.35, the maximum accelerating field istwice as much as the working one : Eacc,max = 2Eacc,nominal

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 20: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Component overdesign

Overdesign

Any components of the linac must operate well below theirtechnological upper limit.

For the SC spoke β = 0.35, the maximum accelerating field istwice as much as the working one : Eacc,max = 2Eacc,nominal

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 21: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Component overdesign

Overdesign

Any components of the linac must operate well below theirtechnological upper limit.

For the SC spoke β = 0.35, the maximum accelerating field istwice as much as the working one : Eacc,max = 2Eacc,nominal

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 22: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

High degree of redundancy

RedundancySeveral components achieve the same function. In case offailure of one, the other component could be turn on to ensurethe well running of the function.

The first ∼ 20MeV structure is duplicated

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 23: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

High degree of redundancy

RedundancySeveral components achieve the same function. In case offailure of one, the other component could be turn on to ensurethe well running of the function.

The first ∼ 20MeV structure is duplicated

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 24: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

High degree of redundancy

RedundancySeveral components achieve the same function. In case offailure of one, the other component could be turn on to ensurethe well running of the function.

The first ∼ 20MeV structure is duplicated

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 25: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Fault tolerance capabilities

Fault toleranceMonitoring the system in such a way that component failures donot lead to system failure.

The local compensation method

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 26: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Fault tolerance capabilities

Fault toleranceMonitoring the system in such a way that component failures donot lead to system failure.

The local compensation method

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 27: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Derating/overdesignRedundancyFault tolerance

Fault tolerance capabilities

Fault toleranceMonitoring the system in such a way that component failures donot lead to system failure.

The local compensation method

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 28: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Table of contents

1 Reliability for a waste transmutation ADSNeeds for reliabilityBeam line specificationsState of the art of reliability

2 Reliability guidelines for an ADS linacDerating/overdesignRedundancyFault tolerance

3 Reliability and spoke activities at IPN OrsaySC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 29: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

2 spoke prototypes β = 0.35 and β = 0.15

2-gap-structuresuper-conducting cavitylarge beam aperture : 50mm to60mm

Mean values :Eacc = 8MV/mEpk = 38MV/mBpk = 100mT

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 30: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

10kW Solid-state amplifier

several modules of 315W eachone module failure does not affect significantly theamplifier behaviorcirculators can support the total reflected power

RF amplifier RF module test bench

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 31: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

High power RF test bench

All components ordered (some already delivered as thecoupling cavity, the vacuum pumping system, thesupporting frame . . .)Final location and installation are almost finishedJune/July 2007 : first tests

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 32: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A small scale horizontal cryostat

Cryomodule for fully equipped Spoke cavities (with powercoupler & tuning system)Cool down at 2K and 4.2 KUseful space : Lmax = 690mm & diammax = 490mm

Cryostat operation close to an accelerator configuration(without beam !)

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 33: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A small scale horizontal cryostat

Cryomodule for fully equipped Spoke cavities (with powercoupler & tuning system)Cool down at 2K and 4.2 KUseful space : Lmax = 690mm & diammax = 490mm

Cryostat operation close to an accelerator configuration(without beam !)

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 34: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A small scale horizontal cryostat

Cryomodule for fully equipped Spoke cavities (with powercoupler & tuning system)Cool down at 2K and 4.2 KUseful space : Lmax = 690mm & diammax = 490mm

Cryostat operation close to an accelerator configuration(without beam !)

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 35: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A small scale horizontal cryostat

Cryomodule for fully equipped Spoke cavities (with powercoupler & tuning system)Cool down at 2K and 4.2 KUseful space : Lmax = 690mm & diammax = 490mm

Cryostat operation close to an accelerator configuration(without beam !)

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 36: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

A small scale horizontal cryostat

Cryomodule for fully equipped Spoke cavities (with powercoupler & tuning system)Cool down at 2K and 4.2 KUseful space : Lmax = 690mm & diammax = 490mm

Cryostat operation close to an accelerator configuration(without beam !)

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 37: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

CMO cryostat

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 38: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Soke β = 0.15 cavity inside the cryostat

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 39: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

First results of the digital LLRFWith the β = 0.15 Spoke cavity at 4.2K in a vertical cryostat

Amplitude : 0.1%(< 0.1%) and Phase : 0.6%(< 0.5%)Preliminary results

Without regulation With regulationA. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 40: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

First results of the digital LLRFWith the β = 0.15 Spoke cavity at 4.2K in a vertical cryostat

Amplitude : 0.1%(< 0.1%) and Phase : 0.6%(< 0.5%)Preliminary results

Without regulation With regulationA. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 41: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Cold tuning systemTest at 300K

Average sensitivity : 0.887Hz per motor step

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 42: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Cold tuning systemTest at 300K

Average sensitivity : 0.887Hz per motor step

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 43: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 44: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 45: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 46: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 47: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 48: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 49: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 50: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

SC spoke cavitiesRF couplers and amplifiersNext steps with CM0

Outlooks with CM0

June/July 2007CM0 is almost ready for the first cryogenic test including :

an upgraded digital LLRF systemthe cold tuning system

October/November 2007A long duration test will be run with a fully equipped Spokeβ = 0.15 cavity :

beam coupler supplied with the 10kW solid state amplifiertuning system with piezo actuatorsupgraded digital LLRF

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 51: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Summary

Promising results :Amplifier module characterizationSpoke cavities performancesDigital LLRF system in vertical cryostatRoom temperature tuning system test

At IPN Orsay :Many efforts to achieve a fully equipped spoke cavity cold testin CM0 with high degree of component reliability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac

Page 52: Development of super-conducting spoke cavities for an ADS ... · Development of super-conducting spoke cavities for an ADS linac Aurélien Ponton Institut de Physique Nucléaire d’Orsay

Reliability for a waste transmutation ADSReliability guidelines for an ADS linac

Reliability and spoke activities at IPN OrsaySummary

Summary

Promising results :Amplifier module characterizationSpoke cavities performancesDigital LLRF system in vertical cryostatRoom temperature tuning system test

At IPN Orsay :Many efforts to achieve a fully equipped spoke cavity cold testin CM0 with high degree of component reliability

A. Ponton [email protected] Development of SC spoke cavities for an ADS linac