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CSIC WP9.4 ActivitiesStatus reportAIDA 2nd Annual meeting WP9.4
Iván Vila ÁlvarezInstituto de Física de Cantabria
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Outline—Review of CSIC commitments—Smart mechanics— Microstrips sensors with resistive
electrodes (charge division on microstrips)
—Summary
[email protected], AIDA 2nd Annual meeting
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Overall task´s deliverables
[email protected], AIDA 2nd Annual meeting
BaselineDeliverable
Two orthogonal layers of u-strips
HPK SiLC sensors ?
AVP25 based hybrid
Conventional
mechanics
Integration with
CaloDAQOffline
software
Provide precise entry
point to calorimet
er
Deliverable 2nd QT 2014
Advanced Deliverable
Ultra-light strip layer of thin sensors (230 um)
Integrated PA or 2D-
Poly silicon or short
strip sensors.
APV25 based hybrid
Light mechanics
with embedded Fiber Optic Sensors
Integration with
caloDAQOffline
Software
Demonstrator of ILD silicon tracker
No deadline
[email protected], AIDA 2nd Annual meeting
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CSIC commitments for the BBL Deliverable
— SMART CFRP supports: self-monitoring of deformations and temperature.
— Implementation of the charge division method in microstrip sensors
[email protected], AIDA 2nd Annual meeting
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SMART Mechanics: Initial proposal
[email protected], AIDA 2nd Annual meeting
The aim is to manufacturea a few ILD FTD support petals, both for real sensor support and thermo- mechanical mock-up
Petals matching the geometry of the 3th FTD geometry has been chosen, being the biggest one
Equiped with CNM manufactured sensors (four inches Wafers) , the structure will be scaled 0.65 :1
Petals mechanical and thermal behavior will be tested
Embeding of FOS sensors for selfmonitoring.
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Moya, Reunión plan nacional, DET4HEP, Zaragoza 17-18 de Enero 2013
Demostrator plate demostrator @ DESY The First step is to manufacture and test this self monitoring structures This demonstrator is a CFRP plate with ten FBG sensors embedded at a
define position, allowing us to measure deformations under Torsion and Flexion loads, and temperature
When a torsion or a flexion load is applied to the sheet, we know from simulations the expected measured value of each sensor.
,
Flexion sensors
Torsion sensors
Top layer
Botton layer
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Fixed EdgeTorsión apply edge
Micrometric screw
spring
Demonstrator plate
New approach for cross calibration— Next steps.
_ Manufacture a first technological demonstrator ._ Design and manufacture torsion and flexion calibration systems_ Calibrate the technological demonstrator using profile meter (< 1
um accuracy) or/and 3D CMM ( < 10 mm accuracy).
7Moya, Reunión plan nacional, DET4HEP, Zaragoza 17-18
de Enero 2013
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Charge-Division Concept in ustrip Sensors (1)
— Charge division used in wire chambers to determine the coordinate along the sensing wire.
— Same concept with conventional microstrips with slightly resistive electrodes (doped polysilicon)
29I.Vila, [email protected] - 19th RD50 workshop,23th
Nov, Geneva 2011.
Fractional Position ≡ y /L=S2/(S1+S 2)
L
y
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Prototypes from CNM— two new prototypes with double-end readout and
different resistivity.
30I.Vila, [email protected] - 19th RD50 workshop,23th
Nov, Geneva 2011.
Strip:length =20 mmwidth =20 um
Pitches:Implant=80 umreadout= 80 um
Electrode:R/um = 2.8 Ohms/umR/um = 12.2 Ohms/um
Beatle chip
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Spice simulation (1): Equivalent Circuit— Detector cell model
including five consecutive strips.
— Total sensor: periodic structure composed of 80 cells.
— Realistic parameters (from sensor electrical characterization)
— Already validated microstrip simulation.
— charge sensitive preamplifier + CR-RC filter, which peaking time 25 ns.
31I.Vila, [email protected] - 19th RD50 workshop,23th
Nov, Geneva 2011.
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Data vs. Simulation: Fractional position (1)— High resistivity sensor: 12.2 Ω/μm, RC = 450ns
32I.Vila, [email protected] - 19th RD50 workshop,23th
Nov, Geneva 2011.
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Data vs. Simulation: Fractional position (2)
— Low resistivity prototype: 2.8 Ω/μm, RC = 100ns
33I.Vila, [email protected] - 19th RD50 workshop,23th
Nov, Geneva 2011.
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Simulation SNR vs longitudinal position
[email protected], AIDA 2nd Annual meeting
High resistivity Low resistivity
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Test beam (2)
— SPS H6 test beam line— Standalone data taking (parasitic) Oct 2011 and
inside the AIDA telescope (main users) Nov 2012
[email protected], AIDA 2nd Annual meeting
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TRIG IN Fan Out 1
Dual Timer 1
Scaler
TLU
BUSY getting
data
BUSY
TRIG
Dual Timer 2
OR
Alibava
Fan Out 2
END MARKER
LOAD
BUSY sending
data
TELESCOPE DAQ
NIM CRATE
Alibava
DUT DAQ
TRIG IN
Synchronizing ALIBAVA r/o and AIDA telescope
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TRIG
BUSY
TRIG IN
BUSY getting data7 ms
BUSY sending data
END MARKER
200ns
Sample Size triggers count
50ns 1us
LOAD
200ms
Triggers enabledTrigger / Busy sequence
Triggers disabled
Getting data Sending data
Synchronizing ALIBAVA r/o and AIDA telescope (2)
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VERY Preliminary results (1)
— Imaging of the SPS beam profile.
— Cluster correlation between opposite ends
[email protected], AIDA 2nd Annual meeting
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Very preliminary results (2)
Poor Signal/Noise for prototypes ANDReference sensors
[email protected], AIDA 2nd Annual meeting
Resistive sensor
Reference sensor
Resistive sensor
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New prototype run (1)
Signal routing to one end of the sensor
[email protected], AIDA 2nd Annual meeting
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New prototype run (3)
[email protected], AIDA 2nd Annual meeting
Dimensions: 25x8mm2 34 strips with 160um pitch
Pad con/sin p-stop
N-type contact width: 40um PolySi contact width: 40um R_bias 3um wide & 255 squares
Pad con/sin p-stop
(10-11)(12-13)
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Summary— “Smart Mechanics” demonstrator plate is being
produced with embedded fiber optic sensors for shape and temperature monitoring.
— Charge Division in microstrips (POLYSTRIPS):_ laser measurements very well reproduced by
electrical simulation_ Poor SNR in test beam as well as reference sensor.
— A new generation of POLYSTRIPS sensors in production with routing tracks and screening structures ready by JUNE
[email protected], AIDA 2nd Annual meeting