MFT Progress Report
Ginés Martínez García
for the MFT project
ALICE mini-week, Sep 1st-5th 2014
Outlook
TDR Status (sensor parameters, TDR
configuration)
Read-out
Cooling
Services
Automatic Assembly System
Organization, Institutes
CERN svn alicemft / TDR / trunk
MFT TDR (75-82 pages)
1.
2.
3.
4.
Introduction (4 pages)
Pixel Sensor (2 pages)
Ladder and Disk Structure (16-19 pages)
Global support structures, thermal studies … (1719 pages)
5. Read-out electronics (7-8 pages)
6. Performances (15-17 pages)
7. Organization, cost and planning (10 pages)
A. Detector Parameters (2 pages)
• Bibliography (2-3 pages)
Detector Parameters
• ITS TDR CERN-LHCC-2013-024
(https://cds.cern.ch/record/1625842?ln=fr)
• ITS TDR addendum (UGC document)
• We need to discuss with ITS which parts of the
ITS TDR need to be upgraded for the MFT TDR.
New reference and justification will be needed.
As an example: Inner layer max power
consumption 300 mW/cm2 in the TDR. Shall we
keep this conservative value? Other examples :
dead areas, pads for parallel 320 MB/s RO.
MFT TDR configuration
• 5 Detection Disks, 2 planes each (decided).
• Ladder Overlap: proposal to be compatible with a
FPC 17 mm width (under discussion).
• 5 types of FPC: 1, 2 ,3 ,4 and 5 sensors (decided).
First draft of the TDR configuration.
Raphael & Franck WG3, Aug 28th 2014
MFT TDR configuration
Ongoing
discussion
First draft of the TDR configuration.
Raphael & Franck WG3, Aug 28th 2014
MFT read-out (I)
LoI: Standard ALICE upgrade read-out: GBT + CRU
Sensor
Sensor
GBT
ALICE-MFT 6 Planes Desi
Sensor
CRU
FPC, Al
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
Sensor
GBT
Optical
CRU
GBT
PLANE4
PLANE3
PLANE2
52-146
47-137
PLANE1
PLANE0
Sensor
Radius
mm
52-155
22-123
22-110
Maximum data flow 320 MB/s : several links per sensor, depending on its size.
nb sensors 276
/half plan
bck+fnt
251
bck+fnt
227
bck+fnt
159
bck+fnt
193
bck+fnt
8
10- ii -2014
Alice-MFT christophe.flouzat@cea.fr
Defining TDR MFT Read-Out
Read-out mapping MFT TDR
configuration being studied.
GBT option imposes several elinks per sensor (3 or 4).
ITS foresees 1 e-link per sensor
via a 1 GB/s copper 4m length
line.
Critical issue for the MFT project.
This requires further discussions in
the next months.
Hopefully we will find a common
ITS/MFT solution.
ALICE-MFT 6 Planes Design : config 1
PLANE5
Radius
mm
PLANE4
38-140
nb sensors 240
/half disc
bck+fnt
PLANE3
PLANE2
PLANE1
PLANE0
34-128
29-108
23-102
23-96
23-90
202
bck+fnt
151
bck+fnt
135
bck+fnt
119
bck+fnt
107
bck+fnt
Total
sensors
1908
whole MFT
10- iii -2014
3/18
christophe.flouzat@cea.fr
ALICE-MFT
6Alice-MFT
Planes
Design : config
2
PLANE5
Radius
mm
38-140
nb sensors 230
/half disc
bck+fnt
PLANE4
PLANE3
PLANE2
PLANE1
PLANE0
34-128
29-108
23-102
23-96
23-90
192
bck+fnt
138
bck+fnt
132
bck+fnt
112
bck+fnt
102
bck+fnt
10- iii -2014
Alice-MFT christophe.flouzat@cea.fr
9
Total
sensors
1812
whole MFT
4/18
MFT TDR readout
• Baseline
– Pixel sensor with 3 outputs, 320 MB/s each to be
compatible with GBT.
– GBT + and optical transceivers in the MFT cone.
– CRU read-out out of ALICE.
• Back-up
– One 1 GB/s per pixel sensor (as ITS inner barrel)
– Data concentration done in the MFT cone (~50 kRad
dose).
– More manpower has to be identified to develop this
option.
MFT Flex Printed Circuit
• Designing a FPC compatible with 3 read-outputs per
pixel sensor.
• FPC width 16.8 mm
• Finalizing design using same FPC “frame”
(positioning holes) as ITS inner barrel.
• Decision on the FPC length and connector
integration to be taken soon.
Preliminary MFT FPC design
Christophe R.
TDR MFT Cooling
• Baseline:
– Air cooling as in the MFT LoI.
– Pixel group reported last MFT/ITS
meeting lower power
consumption than that of LoI.
– Re-do thermal studies for air
cooling with the new
configuration (ongoing).
– Water cooling of the PCB
(namely for DC-DC converters).
• Backup:
– Water cooling in the MFT accep.
– Mechanical design of the disk
spacer with water cooling.
Services
• Discussion with ITS service group needed.
• Interface of service between ITS and MFT
barrel.
• Common DCS, ensuring good modularity
between ITS and MFT.
Automatic
Assembly System
• Including MFT
requirements in the
document prepared by
ITS.
• Most issues have been
addressed (shorter FPC, 15 pixel sensors, connector,
perhaps different pad for
RO).
• Providing a working table
for MFT HIC.
Fabienne and Stéphane for the MFT.
Thanks to Antonello
Organisation
MFT Institutes
MFT sharing responsibilities
 Working on a new version of the PBS, WBS and
planning.
 Discussion on the laboratory responsibilities with
their direction.
 MFT project approved in India. They will contribute
to the ladder assembly at CERN and read-out units
(CRU).
 Discussion with new laboratories ongoing :
•
•
•
•
•
Pusan Korea (pixel sensor serie test),
Nakhon Thailand (thinning and Dicing),
WUT Poland (read-out),
CCNU Chine (read-out),
IFIC Spain (assembly and read-out).
Conclusions
 TDR MFT configuration to be ready soon.
 Upgrade of parameters wrt ITS TDR could be needed.
 Decisions on two critical issues: read-out and cooling, have
been presented.
 Read-out is a critical issue: new outputs in the pixel sensor
OR new common RO for ITS & MFT.
 FPC with 3 RO output per pixel sensor is possible.
 MFT requirements being included in the TS of the AAS
document.
 Discussing WBS with the laboratories. Green-light for for
MFT in India. In contact with new groups. We have to
converge quickly.
 The finalization of the TDR middle October is our main
objective.