1. Micro Vertex Detector of PANDA Status of Strip BARREL and DISC
MVD Mechanics
GSI

2. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Content
Technical Design Status of MVD Strip Barrel and Disc
Disc Support Design status
Barrel Design State status
Integration
R & D Works and Technical Development
Strip Barrel and Disc
Heat Transfer (Calculation / Tests)
Cooling Calculation and Tests (Flow Rate, Pressure Drop)
Production Status
Outlook
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

3. Design Strip Barrel and Disc
~315
~176
~450
~267
~278
~259
Design State: Dez. 2013
157
141
~142
~??
Changes after Bochum meeting ( )
Disc
Concept Chip adaptation
mechanical structure
Width of 50 mm has been extended to ….. mm
Barrel
Chip adaptation
Flexible Tube diameter enlarged from 4 mm to 6 mm
Developing of fixing means
Request: Disc and Globel Frame has to been extendet
No conflict with other areas
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

4. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Current Drawing MVD
Design State: Okt Draft
265
new Disc > 70 mm
Frame Do/Di =282/274 mm
Disc Do/Di =265/144 mm
Barrel Do/Di = 259/259 mm
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

5. Status of Technical Design
Disc Support Design (current work)
Disc Concept
Mechanical Structure
Chip support
Sensor and PCB Integration
Cable Integration
Cooling
MVD Integration
GSI

6. Current Draft MVD Strip Disc
Design Status: Dec Draft Mechanical Structure (without electronics)
Frame Do/Di =282/274 mm
Disc Do/Di =265/144 mm
width > 70 mm
Gap between Disc and Frame 4,5 mm
2*24 Trapezoidal Sensors
2 separate Discs divided into 4 segments
Actually the Structure design concept will be revised in collaboration with the Institute of Plastic Processing from the RWTH Aachen
min 70 mm
min 35 mm
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

7. Current Draft MVD Disc Module
Specification
Trapezoidal Silicon Sensors
Chip Support: HTC Foam
Chip design: 2*6Chips 4,2 *5-6mm ~1,8W/cm²
Sensor Frame: CRFP
Cooling Tube
1 MCC 12*12 mm (dimension are not fixed)
Disc structure: CRFP
Challenges
Bonding procedure
Disc Structure
Attachment to the Disc structure
Cooling connections
Electronic connections ( Power, Cable number & dimensions)
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

8. Assembly MVD Strip Disc
Study with 6 sensors (4,2*5-6 mm) on each side and 1 MCC ~ 12*12 mm (dimension are not fixed)
Specification
Disc structure: CRFP
Disc Module
Chip design: 4,2 *5-6 ~1,8W/cm²
Disc structure: CFK and HTC Poco Foam
Sensor Frame: CRFP
Cooling Tube
1 MCC 12*12 mm (dimension are not fixed)
Ro/Ri= 133/67 mm
L=> 35 mm
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

9. Status of technical design
Strip Barrel 3 & 4 (current work)
Cable and PCB and Cooling Integration (new stave concept)
removable mounting of Barrel Strips
Integration
GSI

10. Current Draft MVD Strip Barrel
No significant changes since the last presentation in Bochum
New Stave concept
Guiding of the PCB foil around the stave from top to bottom by applied bending
Rounding of the edge stiffener
Introduction of a cable duct (~2,5*5mm for 30 couples of cables (from 0,1-0,4 mm)
Groove (~2,5*2,5mm)
Slot
Slot too little and 0.3mm cable is not stiff enough to push through
Space Ok
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

11. Barrel Strips removable mounting
Unresolved Points
Example solution
saddle
ball and barrel
bold
More solution were carried out in collaboration with the Institute of Plastic Processing from the RWTH Aachen
The solution are yet not been rated
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

12. Barrel Strip: Support for Detector Module
Beam
Strip N4
Actuell Stave design
CFRP (2* pre-peg 90° /0° mm, ~0,2 mm )
Foam (Rohacell unpressed =2 mm)
POCO HTC ~ 2,8 x ~ 10 mm (scheduled)
Tube Do=2 mm Di= Material: MP35m (1.4571)
Chip design: 4,2 *5-6 ~1,8W/cm² MCC~12*12 mm
30 couples of cables (from 0,1-0,4 mm)
Unresolved Points
Electronic connections (number, dimensions)
Bonding procedure,
Attachment to structure
Material Properties, Layer Thickness
PCB (Thin Flex),
Glue,
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

13. Assembly MVD Strip Barrel and Disc
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

14. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Strip Cooling Lay out
Strip Cooling Lay-out
Water cycle Barrel
¼ Disc
Counter flow exchanger In
Out
Barrel 3 10
Barrel 4 13
Disc 5 & 6 8
Total 31
Cooling Manifolds
Barrel & Disc 62 feedthroughs
Torino
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

15. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Experimental setup
Pressure range: ,9 bar … 0 bar
0 bar … 1 bar
Volume flow: 15 ml/min … 1000 ml/min
Cooling Temperature: 5 °C … 80 °C
Thermal investigations
Hydraulic investigations
Leakage tests
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Turin Oct. 2013

16. FEM Investigation FEM studies continued to carried out
Some examples of FEM studies
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz , IKP A. Cebulla
GSI

17. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
R & D and Technical Development
Strip Disc:
optimize components complete with piping and cabling
Sensor, Chip, Cable and Cooling Integration
Extension the width of the Disc >15 mm, from 50 mm to >70 mm
Strip Barrel:
Optimization of mechanical support for the integration of the cables and cooling
Heat Transfer (Calculation / Tests)
FE Calculation
Cooling Calculation and Tests (Flow Rate, Pressure Drop)
Components and Material selection (Pipes, Fittings, Glue, Foam)
Electronic
Service lines, additional Lines for electronics, connection and cooling, Chip performance, Electronic connections (number, dimensions), Cable: Cable (dimensions)
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

18. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Production Status
Prototype
Barrel Structure
Cylinder (half shells)
Test Staves
fabrication processing tests
quality control
cooling behavior
Heat transfer
3 D Models (Rapid Prototyping)
Barrel and Support,
Disc Support Section
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

19. ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,
Outlook
MVD CAD Design optimization , Barrel and Disc
(Service lines, additional Lines for electronics and cooling systems, support)
Technical Developments
optimize components complete with piping and cabling
Materials selection
Heat Transfer (Calculation / Tests)
Cooling part (Pressure Drop, Flow Rate. Calculation / Tests)
Hardware
Components selection (Pipes, Fittings, Glue, Foam)
GSI
ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz,

20. Thank you for your attention