OVERVIEW
ATLAS ITK STRIP DETECTOR Art work: Tim Jones
Ingrid-Maria Gregor, DESY
ATLAS ITK- Prague Meeting
May 20, 2014
Prag
With a lot of input
from many people !!
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Ingrid-Maria Gregor
Tony Affolder
Ingo Bloch
Tony Affolder
Pepe Bernabeu
Peter W Phillips
Tony Weidberg
Tim Jones
Sergio Diez Cornell Carlos Lacasta Richard Brenner Ingrid M. Gregor
David Lynn Susanne Kuehn
Ian Wilmut
Carl Haber
Volker Prahl Ian Wilmut
Matt Warren
Combine a lot of barrel and end-cap efforts to join forces
2
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Ingrid-Maria Gregor
Tony Affolder
Ingo Bloch
Tony Affolder
Pepe Bernabeu
Peter W Phillips
Tony Weidberg
Tim Jones
Sergio Diez Cornell Carlos Lacasta Richard Brenner Ingrid M. Gregor
possible
a thriving
!!
David Only
Lynn Susanne
Kuehn with
Ian Wilmut
Carl community
Haber
VolkerValencia
Prahl Ian Wilmut
- February 2014 Matt Warren
Combine a lot of barrel and end-cap efforts to join forces
2
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
And truly global ….
3
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
ITK-Strip e-mail Lists
Currently using a selection of e-mail address collections to inform people
Created new e-mail lists (CERN e-groups) to enable self subscription
atlas-upgrade-itk-strip-general
to contact all people interested in ITK strips
atlas-upgrade-itk-strip-modules
ITK Strip Module Working Group Mailing List
atlas-upgrade-itk-strip-LoS-elect
ITK strip activity on local support electronics and
infrastructure
atlas-upgrade-itk-strip-LoS-assem
ITK strip activity on local support assembly and test
atlas-upgrade-itk-strip-LoS-eval
ITK strip activity on local support evaluation
atlas-upgrade-itk-strip-integration
ITK strip activity on detector integration
atlas-upgrade-itk-strip-triggerDAQ
ITK strip activity on trigger and DAQ related issues
atlas-upgrade-itk-strip-resources
ITK strip activity on resources and planning
Information channel:
- meeting announcements
- general information
- no technical discussions
be
#1
19
!!
Discussion lists: main
channels for discussion and
detailed information
exchange. No more private
collections should be used
go to:
https://e-groups.cern.ch/e-groups/
EgroupsSearchForm.do
search for “atlas-upgrade-itk”
subscribe to the lists you want
4
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
ATLAS LOI ITK Layout
Strip detector
5 barrel layers, 7 discs EC,
“stubs”
short strips (23.8 mm) and
long strips (47.8 mm)
end cap
ules
dule
noise
ostly
193 m2 with 74M channels
barrel
end cap
In numbers:
854 half-staves and 448 petals
11141 barrel and 8064 end-cap modules
more than 200000 readout chips
74M wire bonds
re arrive,
Need ~20000 of these ….
5
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (1)
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
Module = silicon sensor with readout
hybrid (connection via wire bonds)
stave = core structure + cooling +
electrical services (power, data, TTC)
+ modules
Tested chips are glued on to hybrids
wire bonded, tested ….
The hybrid are then glued on top of sensors
wire bonded, tested ….
This “module” is directly glued on top of the kapton bus tape
6
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Stave Concept (2)
Cooling: baseline is C02, with
temperature set by pixel system
End Insertion: ease of assembly
and access
Support Structure: thin CF barrels,
with brackets, simpler preparation
than with single modules
7
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
ATLAS: Silicon Strip Module Types
Kapton flex hybrids directly glued with to silicon
for barrel only two types of modules
short strip module (23.82 mm) for inner three
barrel layers
for outer layers long strip modules (47.75
mm)
Strip sensor
n-in-p FZ with strip pitch 74.5 um
97.54 x 97.54 mm2
R0
….
end-cap petal design: many different
module types
6 different sensor shapes
up to 18 hybrid designs
strip length from 8.1 mm to 49.9 mm
R3
Silicon Modules are directly bonded to the cooled carbon fibre plate of the stave.
8
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Module R&D
Vibrant community of 9 sites building
stave hybrids/modules with ABC250
Tooling and procedures are mature and
are basis for 250nm petalet and 130nm
stave/petal hybrids/modules
Project is finishing the ~70 barrel
modules needed for the completion of
the 250 nm stave program
Full DC-DC and SPP stave being
assembled in this moment
First petalet module (ABC250) and
petalet built
BUT: 9 sites for module building are not
enough to build 20000 + modules !!
More institutes needed to ramp up
module production
๏ Some time needed for getting all details
under control
9
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Radiation Hard Sensors
Standard ATLAS12A Barrel Minis
n+-strip in p-type substrate (n-in-p)
Collects electrons like current n-in-n pixels
Standard
barrel
minischarge
(1-5, 11-15)
will be
signal,
reduced
trapping
๏• Faster
diced as the full-sized sensor in the wafer
Always
from250
the
segmented
side
– depletes
Yields 50 narrow,
standard
minis
Will be
put even
into aunder-depleted
pool for common
signal
๏• Good
studies/qualification of sensor
Single-sided
process
– CCE, PTP, Lorentz angle, inter-strip
cheaper than n-in-n
๏ much resistance,…
Howfoundries
can theseand
be used
to help
qualifyworldthe
available
capacity
๏• More
narrow edge?
wide
• What needs to be done to qualify the new
Easier
handling/testing due to lack of patterned
detector?
back-side
implant
– Range of fluences past max in end cap,…
ATLAS
•
Who will participate?
–
–
DESY wants 14 for Lorentz angle measurements
UCSC wants some for PTP
•
For CCE, ideally would want 4 fluences (5,10,15, 20
e14) after neutron, proton and mixed irradiation with
minimal annealing during irradiation
• How will
this define the
acceptance
ATLAS12
(Hamamatsu
Photonic):
9.75x9.75 cm2
inchof CCE
wafers)
– devices
Then anneal to(6
maximum
(~200 min at 60 C) and
retest
criteria for production? Will we have
•
From experience
of last
time, would
at least 3 sites
segments (2 axial, 2 stereo), 1280 strip each,
74.5
μm pitch,
~320
μmwant
thick
๏ 4irradiations
per batch? What will be
cross-checking each fluence/source combo
<100> and FZ2 <100> material studied• Minimum of 36 devices needed
๏ FZ1
measured?
๏ Miniature sensors (1x1 cm2) for irradiation studies
th
A. Affolder – ATLAS12A Sensor Dicing and Distribution, May 13 , 2013 3
10
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Sensors
https://indico.cern.ch/event/312262/
Progress in testing ATLAS12 in comparison to
ATLAS07
๏ more groups involved in testing !
๏ charge collection, before and after irradiation
๏ edge TCT, before and after irradiation
๏ surface/strip properties before and after irradiation
๏ Lorentz angle (different irradiation levels)
Results are agreeing very well, understand most
differences
Example: edge TCT of irradiated
ATLAS12 and ATLAS07 minis
Irradiated with 5e14 neutrons
500#V#
๏ active depth of A12 detector ~300 µm
๏ after 5e14 neutrons: A07 more active
depth than A12 at same bias -> as
expected
๏ some differences in the amount of
signal before annealing, but postannealing performance after 1e15
neutrons is very similar
Igor Mandic 11
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Status ABC130 + HCC
ABC130 returned from foundry in end of October
Diced and placed on single chip cards soon after
Problem: no data visible on data line
๏ Mismatch btw. schematics and verilog model of the
TRCVR160
๏ Enable on transmit is inverted
Chips send to NanoScope (Bristol) for focused
ion beam repair (FIB)
Fixed Data and XOFF direction
Problem identified in one metal layer
Design change implemented
ABC130’ resubmitted some weeks ago
๏ expected return in June
Hybrid Control Chip (HCC)
๏ design and layout almost complete
๏ currently finalizing simulations
๏ review: beginning of July
๏ to be submitted in August
ABC130'Layout'
•
•
Chip size 7900 um x 6700 um
22/11/2012"
12
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
ABC130 Testing
FIB repairs were made to ABC130.
๏ 2-point repair needs to readout data.
๏ 4-point needed to pass data in chain
With repairs, chip acts mostly as expected
๏ Low stable power (120 mW per chip <4% change
with expected trigger rates)
~10µm
FIB edit by NanoScope Ltd., Bristol
๏ Gain is ~30% lower than simulation with the input
noise ~30% higher
๏ Calibration under investigation; plans for external
calibration (test beam, source, laser, external cal
pulse, …)
more chips being FIBed and being tested
Single chip card with 2 minis
Probing of single FIB’d ABC130 die
13
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Half-Module with ABC130
Hybrid with 5+5 ABC130
With one of two columns of strips bonded
BCO
RCLK
Thin build FR4 hybrid made quickly
๏ 10 ABC130 attached, 5 off “FIB’d” and 5 off
“non-FIB’d”
๏ All 10 ABC130s linked serially (for data
readout) with common TTC bus
Wire-bonding much simpler/faster
๏ Benefit of collaborating with asic designers
to ‘fix’ geometry
Hybrid/module behaves as expected:
๏ Data Passing at 80MHz RCLK works
๏ Hybrid draws ~810mA when configured
(PTOTAL~ 1.2W/hybrid)
๏ Total power consumption of ~3W/module
(inc.HCC)
๏ Current ABCN-25 module power
consumption is ~20W
๏ Output noise as expected and extremely
regular
๏ gain low as with single chips and variable
chip-to-chip
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Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
DC-DC Converter
1st generation
planar coil
STV10 DC-DC on
module
Shield box
height
6.5mm
16.5
mm
8mm
Reminder: need to decided the LV
concept between DCDC and SPP
Much progress made with DC-DC converters
๏ Both STV10 and planar coils shown to work
on module
New: DC-DC converter on sensor
๏ Makes single complete testable object
๏ Cooling for converter much more straight
forward
Design advanced rapidly for converter
packages for 130 nm ASIC set
๏ New COTS solution coil with total DC-DC
package height reduced from 10 mm to <5
mm
๏ Mass reduced by ~factor of 2
๏ Shown to work on 250 nm module already
New planar coil designed to heights less than
3 mm
16.5
mm
Thermo-Mechanical Module with
compact DCDC converter
15
alignment, with at least 2 % of tracks passing through the edges of two neig
number of staves in a cylinder is chosen to be a multiple of 4 so that each qua
simplifies the routing of services and the design of structure supports betwee
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
ATLAS: Barrel Strip Detector
R=
Staves
๏
๏
R=
A sandwich construction for high structural rigidity
with low mass.
CONCEPTS
End insertable (in z) to allow repairs up to the very
last moment
R=
R=
R=
R=
1000
862
mm
mm
762
m
m
631
519
405
mm
mm
mm
Services integrated
into plate
including
power
control
o Silicon Modules
directly
bonded to
a cooled
carbon fibre plate
 Plate a sandwich construction for high structural rigidity with low mass
and data transmission.
o Services integrated into plate, including power, control and data transmission.
Design optimized
to minimize
cooling
path between
 Called
a Stave in barrel
region
 and
a Petal in
the forward direction
heat sources and
cooling
pipes
o Attached to a global Support structure
(not discussed here)
Hybrid
o Goal
to
Eliminate
less
Stave cross-section:
Cu bus
attractive features of SCT
Kapton flex hybrid
tape
Readout ICs!
Si Strip
sensor
Sensor
Carbon
fibre
facing
Ti coolant tube
High T conductivity foam
Edge close-out
Figure 6.36: Arrangement of staves in barrels. Staves are tilted 10 d
Carbon honeycomb
Core filler, honeycomb,
Foam, corrugated
The petals are arranged to make the end-caps hermetic down to 1 GeV
Buslow-p
Tape, bonded
to CF skin
the highest
T acceptance. The overlap16
2is ac
Cooling Pipe embedded in
thethermal
most foam
critical as it has
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Carbon Structure with Cooling
Stave/Petal Core: composite structure consisting of
CF facings laminated to foam/honeycomb filler with
embedded cooling pipes.
Explicit use of advanced thermal materials.
Titanium
Cooling
Pipe
Core filler
Honeycomb
Bus tape
bonded to
CF skin
17
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
And the End Caps ….
To “close” barrel two end caps are needed
Strips pointing to centre of beam pipe
“Petal” seems currently the optimal design
~2m
NIKHEF
not latest design!
~65cm
The petal concept follows closely the barrel
stave concept
7 discs on each end cap with 32 petals per
disc
6 Sensor rings (R0-R5)
First petal cores have been produced – Flat
to better than 50 um
First endcap modules tested
๏ Similar performance as barrel hybrid
Institutes being involved in end-cap specific
developments:
๏ Freiburg,Valencia, Prag, NIKHEF, DESY and
Uppsala ...
18
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
What is a petal ?
Hybrid = kapton board with FE chips
(ABCNext, connection via wire bonds)
End
of Petal 6 different sensor layouts!
!"#$%#&'($)*+,#-&
Module = silicon sensor with readout hybrid
(connection via wire bonds) ! ,&%%&-'(./0+1(*%&'1%2(
+31(4#$$1%('+#51(
Petal = petal core structure + cooling
+
*&6*17+
electrical services (power, data, TTC) +
Bus tape
modules:
๏ 2 Carbon Facings + Honeycomb sandwich
core (6mm)
()*+
,
๏ Carbon Fibre tubes on sides
'()
#0&+.1/#2-#(%&#3&()*#.+#+%24/#./#5.1"#,"#$%&6&#4&#)*+2#+%24#(%&#%786.0+#4.(%#(%&.6#9%.3+#)(#(&/()(.:&#32+.(.2/+"#
๏ Independent CO2 cooling pipe
2/#(%&#%786.0+#)6&#*29)(&0#+;9%#(%)(#)**#(%&#9%.3+#+3)/#(%&#+)<&#+&/+26#*&/1(%#./#(%&#)9(.:&#)6&)"#=/#*29)(./1#(%&#
4&#%):&#(%&#92/+(6)./#(%)(#)#624#2-#9%.3+#+%2;*0#+()7#2/#(23#2-#.(+#24/#+(6.3+#)/0#9)//2(#<2:&#2/(2#(%&#/&>(#+(6.3#
๏ Independent e- services + Bus cable
! 8("#$4&6(,#*069'(:(;&612*&<4('#6=-0*3(*&$1
๏ Control card on side
! ",(+/41'(&6('0=1'
! >6=1716=16+(??(@("A8(*&&%069(7071
๏ 2x9 modules
!
!
!
!
75 mm
BA"A,&#<(#$&/6=(??(7071
>6=1716=16+(1@('1$50*1'(:(C/'(*#4%1
!
"&6+$&%(*#$=(&6('0=1
D&7@4&++&<(*%&'1&/+'(:('+$/*+/$1(7&'E(B06'
!"#!$%&'()*+%$,-.+/%0+1-*(2%3%4*-)5%6
204 mm ,5%7889%
!"#
,&%%&-'(./0+1(*%&'1%2(
+31(4#$$1%('+#51(
*&6*17+
!
"#$%&'()#*#'+#
650 mm
Hybrid posiTons and dimensions
19
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Status of 250nm Petal(et)
Prototyping all feature on a smaller scale
๏ Petalet should feature most petal characteristics
Petal
Significant progress
๏ First petalet module produced and working within
specifications
๏ More Petalet cores in production
๏ Tooling for module placement under design ~10 cm
๏ Bus tape, HV connection ….
~25 cm
~63 cm
Petalet
First core
with Ti pipe
“Big” petalet module
20
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Petalet
A lot of progress in first prototype for the strip endcap
๏ First petalet assembled and tested
Experimental results and discu
๏ Different versions of electronics layout being
mechanical
prepared
•Temperature distribution: (in DESY)
•Co
•N
๏ Wedge-shaped modules placed on dummy system
D
and on real core
Due to complicated structure of two neighboring
40.6°C
Experimental
result
modules significant differences to stave electrical
layout
B
testing, frame to bus
•Noise: first observations
๏ HV routing, location of DCDC, …..
(2, in Freiburg)
37.7°C
•On frame.
Noise not homogeneous
•17.7 °C.
•60 hybrid
V. (and sensor!) significantly warmer:
•Upper
(b-grade!!!)
๏ effect of embedded fanins in sensor
•1•Much
fC. higher glue height (wavy bustape surface).
2014.04.09
Riccardo Mori - AUW - Petalet evaluation
More studies showed different behaviour than
barrel stavelet
๏ Helps to improve electrical layout for petal
•The “winged” shape comes from the em
•On the frame, we are close to the optim
21
The DC-DC on frame didn't afflict the pe
Ti end-cap (OD = 4.8mm)
Local Support
Alumina insulator
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Ti end-cap (OD = 4.8 mm)
https://indico.cern.ch/event/311920/
Sets the
core height
2.275mm Ti stalk (welded to stave cooling loop before stave core assembly)
•
•
Stave core production getting into
Insulating break is:“industrial” mode
• a fundamental part of Grounding & Shielding
๏ advanced tooling
scheme
lists
• Prevents
a DC
connection to stave cooling tube
๏ check
from
welding
during
integrationstaves
more sites
needed
to construct
๏ in-situ
More
space for
DCDCupdated
if power
Layout
work
07/04/2014distribution is on opposite edges…
Stave 130 Design (Tim)
since Valencia meeting
with LoI geometry
Richard French
Geometry partially driven by important
Assembly
parts
• Stalk-to-stalk assembly vacuum brazed at 780°C
flat DC-DC
needed
๏ silver
with
copper converters
eutectic alloy.
๏ electrical breaks define height of stave/petal
• Electrical
break assembly
is welded
to the stave
Stave geometry
now very
stable
cooling
loop and the inlet/exit tubes & tested
๏ sign off in EDMS in preparation
and then potted into the closeout to ensure DC
isolation & relieve stress
07/04/2014
Stave 130 Design (Tim)
Core production for petalet program close
to be concluded
Next step: full design of petal
๏ urgently more people needed
๏ not enough sites to construct
๏ petals
Electrical Brea
10
Short stalk to test fitting
(Test fitting cut off and stalk welded to
services module during integration)
Ti end-cap (OD = 4.8mm)
Alumina insulator
Ti end-cap (OD = 4.8 mm)
Sets the
core height
2.275mm Ti stalk (welded to stave cooling loop before stave core assembly)
22
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Services and Structure
Services
Quite some progress on
๏ stave cable and connectors
๏ PP1 connector
Barrel structure
๏ New FEA model yields improved
stiffness in Z
3σ (99.73%) = 3.08μm
End-cap structure
๏ Current FEA model still shows that the
EC needs to improve it stiffness.
๏ Preliminary assembly procedure has
been sketched.
๏ Needs to be evaluated with
appropriate mock-ups.
23
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Integration
Some work needed to finalize the design of the
structural bulkhead (BH).
๏ Space needed for the connection to the Outer
Cylinder (OC)
๏ End-cap stiffening disc clashes with BH
Grounding and shielding concept sketched by
Ned and and possible implementation shown by
Georg.
Structural bulkhead
A path for a first schedule and costing estimate
outlined from very basic assumptions for the
barrel
๏ showing that need to start elaborating with more
details to pinpoint possible bottle necks.
๏ the end-cap needs some more missing details
Integration timeline
24
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
List of Key Milestones for TDR
Sensor final design
๏ Barrel straight forward, end-cap lot of work
On-detector electronics
๏ confirm ABC130 and HCC design
๏ based on ABC130/HCC studies -> power decision
๏ identify HV multiplexer
๏ finalise EoS design (barrel and end-cap)
Even though we will start
pre-production only in
2017: we will need to hurry
to get all this done
Local Support Assembly
๏ Geometry and detailed design of stave and petals
๏ FEA
Integration
๏ finalise design
Alternative design R&D
๏ example: CMOS task force
25
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Summary
…. we know what
to do the next 10
years ….
The ITK project for the replacement of the
ATLAS Inner Tracker is in full swing
Full size prototypes for staves (DCDC and
SPP) almost compleded
First petalet with ABC250 under test
First modules with ABC130 built and tested
But still a lot of work towards TDR
necessary
New Members Needed !!!
Especially addition engineering power (electronics and mechanics) needed
IDR submission later this year was important milestone
๏
assessment of project status
will get ready to be a collaboration
๏
maybe some free room for R&D
๏
26
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Module Production
Hybrid QA
Gluing:
Chips to Hybrid
Wirebonds
Sensor QA
Test Hybrid
Gluing:
Hybrid to sensor
Wirebonds
All steps in a rather clean room (class 1000?)
Clean room equipment, suits, shoes, hair
coverage, mouth coverage …
Full automatic wire bonder
๏ Hesse & Knipps
๏ Delvotec G4/5
Pull tester
Glue dispenser
Microscope
Special tooling (from collaboration)
….
Test module
50-70 m2 Labor (clean room)
• Air conditioned
• vacuum system (1000l/min 2cm
diameter -> example G5 wire bonder)
• pressured air - absolute oil free and
dried 5-8bar
• Nitrogen
• Clean air (-70Grad)
• Space for storage
27
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
CMOS Task Force
https://indico.cern.ch/event/310882/
We decided that potential benefit of CMOS sensor
could be enormous for strip detector
๏ encouraging results from pixel prototypes (HV/HR
CMOS)
๏ have to define any R&D work very carefully not to
endanger progress on baseline design
๏ need to understand
๏ effect on tracker performance (i.e. end-cap)
๏ feasibility of technology (in combination with
ABC130, rad. hard) as targeted for strip system
๏ implications on detector design
Staged 3-year program defined to address CMOS as
option for the strip detector
๏ each stage defined for one year
๏ defined break points with list of completed studies
to be reviewed
๏ allocated some funding and volunteers to
coordinate R&D program
๏ Richard Nickerson, Vitaliy Fadeyev, Marcel Stanitzki
1x4$re'cle$sec'ons$
X'
z'
Digital'Periphery'
28
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Timeline towards TDR
2014
Sensors
ASICS
2015
Barrel sensor
design
ABC130
ABC130’ resub. back
HCC
HCC
submission back
Hybrids
Modules
2016
End-­‐cap sensor
design
ABC130
final design HCC
final design design (130+HCC)
130
Modules
Stave cores
Stave assembly
Full stave
assembled
Missing:
Petal prototyping
Integration
DAQ
EOS
Powering decision
TDR
29
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
2m
30
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Manual module placement
31
Ingrid-Maria Gregor - Short Status of ATLAS ITK Strip Detector
Mechanics Forum
https://indico.cern.ch/event/287285/
Topics include:
๏ Detector cooling
๏ Deflection, stability and precision of the structures, achieved and revisited requirements
for the next generation
๏ Thermal expansion differences inside the detector
๏ Mass and therefore radiation length of mechanics, cables and pipes
๏ Humidity control, including gas flushing inside detector volume and along services
๏ Structural issues concerning humidity or outgassing
๏ Choices of construction materials
๏ Rails for support and guidance
๏ Alignment systems, requirements and "weak modes" of the system, in-situ adjustments,
sensors including load sensors
๏ Pipe materials, pipe connection techniques and fittings
๏ Shock and vibration issues such as bond wire vibration during transport and in
operation
๏ Effects on mechanics during fast discharge of magnet coils
๏ Tracker to beam-pipe interfaces and bakeout scenarios
๏ Failure management:
30 June 2014 to 2 July 2014
๏ Service management
DESY Hamburg
๏ ….
32