Download AIDA 2020 report test station for Irradiate Silicon

AIDA 2020 WP 14.3
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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This activity concerns the development of a test station for the characterization of
irradiated silicon sensors and LHC-oriented front-end read-out electronics. The
development of the front-end electronics test-stations is less well advanced, as the
chips in question are still under development, and a good understanding of the
features of the electronics is necessary in order to properly specify the corresponding
requirements for the stations.
Energy-loss fluctuations (Landau fluctuations) in the energy deposits of charged
particles in the thin sensor layers and the high radiation levels characteristic for
hadron colliders will affect the energy resolution and the efficiency in sampling
calorimeters. Studying these effect, and in particular the impact of radiation damage,
requires the development of a dedicated test station.
A test station was designed and built according to these requirements and is
presented in this report. The setup can be operated at temperatures of -35ºC and
below with low humidity (RH < 5 %) and is using a very low noise amplifier for the
readout of the sensors.
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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Basic Silicon Sensor R&D: Essential results for CMS HGC documented in TP
300um
200um
100um
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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Basic Silicon Sensor R&D: Essential results for CMS HGC documented in TP
300um
200um
100um
Laser source used to inject large signals for CCE
measurements (typical amplitude ≥10MIPs)
Calorimetric performance strongly affected by
Landau fluctuations of MIPs:
How is this influenced by irradiation?
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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TEST STATION'S ELEMENTS
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Binder climatic chamber MKT115 (1): can be set
to temperatures between -70°C and +180°C, keeping
inside a low humidity atmosphere (below 5% RH)
•
Agilent 2.5GHz oscilloscope (2): for the
triggering and data acquisition.
•
Low voltage power supply (3): up to 25V for
biasing the amplifiers (7) and photomultiplier (12)
•
Digital multimeter (4): reads a pt1000
resistance placed close to the sensor that is used for
obtaining the correct value of the temperature in the
sensor. Despite the temperature inside the climatic
chamber being very stable and quickly settled, the
cooling of the sensor towards ambient temperature
needs more time such that the extra reference
provided by the sensor is required.
•
High voltage power supply (5) for biasing of the
sensor while measuring the leakage current at the
same time. It can go up to 1000V.
•
PC and GUI (6): A PC controls the different
devices of the set up through a LabVIEW GUI
customized for this test station.
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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TEST STATION'S ELEMENTS
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CIVIDEC amplifier (7): is used for the readout of
the sensors. It is a very low noise charge amplifier that
has been optimized in collaboration with the company
CIVIDEC for measuring highly irradiated sensors.
•
Strontium-90 radioactive source (8): The beta
source is used for the measurements and
characterization of the energy loss distribution in the
irradiated silicon sensors.
•
Collimator (9): Different size collimators are
used for controlling the trigger rate and the beam spot
under the strontium-90 radioactive source.
•
Support for the silicon sensor (10): The sensor
has to be aligned with the radioactive source and the
photomultiplier.
•
NewPort XY stages (11): Special stages for the
positioning of the sensor are used. They can be
operated at very low temperatures inside the climatic
chamber with a precision of a few microns.
•
Scintillator and Photomultiplier (12): is needed
for the triggering.
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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It is foreseen to extend the functionality of
the test set up such that it can also be
used for the characterization of irradiated
Si-PMs, which is of high importance for
scintillator-based High Granularity
Calorimeters.
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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Resources:
Esteban Curras Rivera (Doctoral Student)
M. Mannelli, M. Moll co-supervisors
Marcello Mannelli CERN: AIDA 2020 report
09/06/16
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