Workshop on Field quality in the Dipole Production

Workshop on Field Quality Steering

of the Dipole Production

20-21 March 2003

Conference Room 40/S2-B01

Scope:

To recall targets on dipole field quality and criteria used to fix them.

To present the procedures used for production follow up, analysis and data management.

To present results achieved so far and their trends including warm-cold comparison.

To discuss the possible corrective actions (correct, mitigate or adapt) to reach the target (including adaptation of these lasts).

Conclusions and recommendations.

The workshop is mainly aimed to harmonics and integrated transfer functions. However superconductive and cabling effect as well as the issue of the geometry and its stability will be discussed, too.

Organisers: L. Rossi and W. Scandale

Scientific Secretaries: M. Giovannozzi and C. Vollinger

General Secretariat Support: C. Bosteels and A. Buzon

Programme

Thursday 20 March 2003 - Morning

Start at 09:00 a.m.

Speaker

Allocated

time (min)

1

Scope of the workshop

L. Rossi

00:10

Session 2 - Historical overview and specifications

Chairman

J.-P. Riunaud

Scientific Secretary:

M. Giovannozzi

Speaker

Allocated

time (min)

2.1

A Brief Review of the Strategy and Specifications for the LHC MB Field Quality (PowerPoint, PDF)

J.-P. Koutchouk

00:15

2.2

Evolution of the dipole cross-section from the “Yellow Book” to the pre-series design (PDF)

S. Russenschuck

00:20

2.3

Final Design of the LHC Dipole for Pre-series and Series Contracts (PowerPoint, PDF)

M. Modena

00:20

2.4

Criteria Used for Field Error Specifications (PDF)

O. Brüning

00:25

General discussion

Coffee at 11:00 a.m., start at 11:15 a.m.

Session 3 - Procedures to follow up production and checkpoints

Chairman:

L. Walckiers

Scientific Secretary:

C. Vollinger

Speaker

Allocated

time (min)

3.1

Follow up and Checkpoints of Cable Properties (PowerPoint, PDF)

L. Oberli

00:20

3.2

Follow up and Checkpoints of Harmonics in Collared Coils and Cold Masses (PowerPoint, PDF)

E. Wildner

00:30

3.3

Field Quality Follow up and Checkpoints for LHC Cryomagnets (PDF)

L. Deniau

00:20

General discussion

Thursday 20 March 2003 - Afternoon

Start at 14:15 p.m.
Session 4 - Procedures to follow up production and preliminary analysis

Chairman:

J.-B. Jeanneret

Scientific Secretary:

M. Giovannozzi

Speaker

Allocated

time (min)

4.1

Assembly Procedures and Follow up of Dipole Shape at 300° K (PDF)

M. Bajko

00:30

4.2

Follow up and Checkpoints of Magnetic Axis at 300° and 1.9° K (PowerPoint, PDF)

J. Garcia

00:20

4.3

Geometry: Analysis and Trend (PowerPoint, PDF)

W. Scandale

00:30

General discussion

Coffee at 15:5 p.m., start at 16:10 p.m.

Session 5 - Components properties and construction processes

Chairman:

T. Taylor

Scientific Secretary:

C. Vollinger

Speaker

Allocated

time (min)

5.1

Status and Trends of the Various Components Affecting the Field Quality (PowerPoint, PDF)

F. Bertinelli

00:20

5.2

Into the Galaxy of Winding Curing and Collaring (PowerPoint, PDF)

P. Fessia

00:30

5.3

Analysis of Coil Shapes: Trends and Correlation with Magnetic Measurements (PowerPoint, PDF)

I. Vanenkov

00:20

General discussion

Friday 21 March 2003 - Morning

Start at 09:00 a.m.
Session 6 - Present status: measurements versus targets and corrective actions

Chairman:

F. Ruggiero

Scientific Secretary:

M. Giovannozzi

Speaker

Allocated

time (min)

6.1 Present Status and Trends of Cable Properties and Impact on Field Quality (PowerPoint, PDF) A. Verweij
00:30

6.2

Constraints on Sorting: Types of Magnets and Interchangeability (PowerPoint, PDF)

D. Tommasini

00:20

6.3

Status and Trends of Field Quality at 300° K and Possible Corrective Actions (PowerPoint, PDF)

E. Todesco

00:50

General discussion

Coffee at 10:30 a.m., start at 10:45 a.m.

Speaker

Allocated

time (min)

6.4

Status of Field Quality and First Trends at 1.9° K (PowerPoint, PDF)

S. Sanfilippo

00:40

6.5

Magnetic Measurements Compared to Specifications and Updated Consequences on Beam Dynamics (PDF)

S. Fartoukh

00:40

General discussion

Friday 21 March 2003 - Afternoon

Start at 14:30 p.m.

Session 7 - Open discussion: what are the guideline to steer the production and actions to be taken, as emerged from the workshop?

Chairmen:

O. Brüning and L. Rossi

Scientific Secretaries:

M. Giovannozzi and C. Vollinger

Tuesday 8 April 2003 - Morning

Start at 08:30 a.m.

Meeting of the Closed Panel

Minutes of the Workshop (Word, PDF)

Speaker

Brief summary of Workshop: part I (PowerPoint, PDF)

M. Giovannozzi

Brief summary of Workshop: part II (PowerPoint, PDF) C. Vollinger

Few comments on the two "preliminary" proposed solutions by the CMAs (PDF)

M. Modena

Last update on 09-04-2003 11:30:00
MG

		Chairman	J.-P. Riunaud
		Scientific Secretary:	M. Giovannozzi

			Speaker	Allocated time (min)
2.1	*A Brief Review of the Strategy and Specifications for the LHC MB Field Quality* (PowerPoint, PDF)		J.-P. Koutchouk	00:15
2.2	*Evolution of the dipole cross-section from the “Yellow Book” to the pre-series design* (PDF)		S. Russenschuck	00:20
2.3	*Final Design of the LHC Dipole for Pre-series and Series Contracts* (PowerPoint, PDF)		M. Modena	00:20
2.4	*Criteria Used for Field Error Specifications* (PDF)		O. Brüning	00:25

		Chairman:	L. Walckiers
		Scientific Secretary:	C. Vollinger

			Speaker	Allocated time (min)
3.1	*Follow up and Checkpoints of Cable Properties* (PowerPoint, PDF)		L. Oberli	00:20
3.2	*Follow up and Checkpoints of Harmonics in Collared Coils and Cold Masses* (PowerPoint, PDF)		E. Wildner	00:30
3.3	*Field Quality Follow up and Checkpoints for LHC Cryomagnets* (PDF)		L. Deniau	00:20

		Chairman:	J.-B. Jeanneret
		Scientific Secretary:	M. Giovannozzi

			Speaker	Allocated time (min)
4.1	Assembly Procedures and Follow up of Dipole Shape at 300° K (PDF)		M. Bajko	00:30
4.2	Follow up and Checkpoints of Magnetic Axis at 300° and 1.9° K (PowerPoint, PDF)		J. Garcia	00:20
4.3	*Geometry: Analysis and Trend* (PowerPoint, PDF)		W. Scandale	00:30

		Chairman:	T. Taylor
		Scientific Secretary:	C. Vollinger

			Speaker	Allocated time (min)
5.1	*Status and Trends of the Various Components Affecting the Field Quality* (PowerPoint, PDF)		F. Bertinelli	00:20
5.2	*Into the Galaxy of Winding Curing and Collaring* (PowerPoint, PDF)		P. Fessia	00:30
5.3	*Analysis of Coil Shapes: Trends and Correlation with Magnetic Measurements* (PowerPoint, PDF)		I. Vanenkov	00:20

		Chairman:	F. Ruggiero
		Scientific Secretary:	M. Giovannozzi

			Speaker	Allocated time (min)
6.1	*Present Status and Trends of Cable Properties and Impact on Field Quality* (PowerPoint, PDF)		A. Verweij	00:30
6.2	*Constraints on Sorting: Types of Magnets and Interchangeability* (PowerPoint, PDF)		D. Tommasini	00:20
6.3	Status and Trends of Field Quality at 300° K and Possible Corrective Actions (PowerPoint, PDF)		E. Todesco	00:50

		Chairmen:	O. Brüning and L. Rossi
		Scientific Secretaries:	M. Giovannozzi and C. Vollinger

	*Minutes of the Workshop* (Word, PDF)
		Speaker
	*Brief summary of Workshop: part I* (PowerPoint, PDF)	M. Giovannozzi
	*Brief summary of Workshop: part II* (PowerPoint, PDF)	C. Vollinger
	*Few comments on the two "preliminary" proposed solutions by the CMAs* (PDF)	M. Modena