Experimental investigation of new ultra-lightweight support and cooling structures for the new Inner Tracking System of the ALICE Detector

Zherebchevskii, V.; Altsybeev, I.; Феофилов, Г.; Francescon, A.; Gargiulo, C.; Igolkin, S. N.; Крымов, Е. Б.; Laudi, E.; Lazareva, T.; Maltsev, N. A.; Marzoa, M. Gómez; Prokofiev, N. A.; Nesterov, D.

doi:10.1088/1748-0221/13/08/t08003

Cited by 12 publications

(3 citation statements)

References 8 publications

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“…The CFRPs are made of a thin C-shaped carbon fiber cold plate (400 µm) with lateral ribs that ensure mechanical stability and heat dissipation towards the metal frame. Following the design approach on CFRPs in ALICE ITS described in [4] we first optimize the thermal conductivity of the single CFRPs stave with a maximum thermal gradient of 10 • C. We developed a thermal/structural Finite Element Model of a single CFRPs stave and the turret to determine the optimal lay-up configuration with oriented plies made of unidirectional carbon fiber K13D2U with cyanate ester prepreg resin EX1515. We have considered each stave thermally independent and perform Finite Element thermal Analysis analysis neglecting radiation and convection.…”

Section: Embedding the Alpide Pixel Sensors In The Trackermentioning

confidence: 99%

Thermo/mechanical design for embedding ALPIDE pixel sensor chip in a High-Energy Particle Detector space module

Serra¹,

Angeletti

Coli

et al. 2022

J. Phys.: Conf. Ser.

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The High-Energy Particle Detector (HEPD) module is designed to measure the pitch angle and energy of electrons and protons fluxes trapped in the Earth Magnetosphere with energies 3-100 MeV and 30-300 MeV respectively. Because of the launch of the CSES-02 satellite, an interesting option for improving the HEPD is to endow the tracking module with ALPIDE monolithic active pixel, specifically developed for the ITS upgrade of ALICE experiment at CERN. In this work we present the project of a modular and compact particle tracker made of 5 turrets, making use of 150-pixel sensors equipped with Hybrid Integrated Circuit (HIC) and supported by Carbon Fiber Reinforced Plastics (CFRPs) staves housed in an aluminum case. All envisaged solutions have been validated with an intense campaign of qualification tests, concerning vibrations and thermal stresses. The HEPD-02 tracker project foreruns the massive usage of CFRPs for space initiatives both of scientific and exploratory nature.

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Section: Embedding the Alpide Pixel Sensors In The Trackermentioning

confidence: 99%

Thermo/mechanical design for embedding ALPIDE pixel sensor chip in a High-Energy Particle Detector space module

Serra¹,

Angeletti

Coli

et al. 2022

J. Phys.: Conf. Ser.

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“…The cold plate manufacturing and the characterization of the cold plates are managed by the EP-DT department at CERN (Experimental Physics-Detector Technology) which have experience in serial productions of similar structures [3]. An intense campaign of test have been performed on the structures for thermal, thermoelastic and structural properties characterization.…”

Section: Test Campaignmentioning

confidence: 99%

Thermo-mechanical design for ALPIDE pixel sensor chip in a high-energy particle detector space module

et al. 2022

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The Limadou collaboration includes all Italian scientists working on the project CSES (China Seismo-Electromagnetic Satellite), a constellation of satellites equipped with the most advanced technologies for correlating ionosphere perturbations with the occurrence of seismic events [2]. For the launch of CSES-02, scheduled for mid-2022, the collaboration is realizing the high-energy particle detector [1], aimed at detecting electrons and protons trapped in Earth’s magnetosphere, with energies 5 MeV–100 MeV and 30 MeV–300 MeV respectively. This payload consists of a particle tracker, a trigger system and a calorimeter, which work in time-coincidence to accurately identify particles and measure their energy and trajectory. The tracker is based on monolithic active pixel sensors ALPIDE [4], an innovative platform with superior performances in the field of pixel detectors, developed for the upgrade of the ALICE experiment [5] at the LHC, at CERN. The challenge in the construction of the tracker has been to adapt the ALPIDE technology to the space environment and to the specifications of the space register. Lightness and stiffness, essential features for structures in a tracker module, needed to balance with the need for withstanding structural and vibrational stress in the extended range of temperature occurring in the launch phase. Proper material choice with high thermal conductivity for the heat dissipation, innovative design of thermal paths and structural test results guided the project of mechanics. The modular particle tracker consists of 5 turrets, each one made of 3 stacked staves, with 150 pixel sensors in total. For readout and control purposes, ALPIDE sensors are wire-bonded to flexible printed circuits, which enhances the fragility of the system and makes handling critical. Sensor supports in carbon fiber reinforced plastic and an external aluminum frame preserve the mechanical integrity and provide the essential thermal bridges for heat dissipation. We provide results from the intense campaign of structural, thermal and vibrational qualification tests that have been performed in compliance with the procedures required by the space register. It regards structure, module and turret elements. The envisaged solution is a novelty in the field of space applications and paves the way for important developments for particle and astroparticle physics experiments.

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“…Novel heat-conducting composite materials are being developed as an alternative to aluminum [8]. The thermal conductivity of a carbon composite material made from KT13D1U/EX1515 prepreg manufactured by TenCate Advanced Composites (United States) was measured in [9].…”

Section: Selection Of the Materials For The Cooling Finsmentioning

confidence: 99%

Investigation and Optimization of a Cooling System Prototype for a Module of the Silicon Tracking System for the BM@N Experiment

2021

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Various materials were tested for use in the elements of the cooling system for the readout electronics of the BM@N silicon tracking detector. The thermal design was performed using the ANSYS software package and the thermal conductivities of various adhesives and carbon-fiber composites were experimentally measured. The results were used to select materials for cooling fins. Thermal tests of the prototypes of front-end-board boxes have been carried out, during which various thermal interfaces were also tested.

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Experimental investigation of new ultra-lightweight support and cooling structures for the new Inner Tracking System of the ALICE Detector

Cited by 12 publications

References 8 publications

Thermo/mechanical design for embedding ALPIDE pixel sensor chip in a High-Energy Particle Detector space module

Thermo/mechanical design for embedding ALPIDE pixel sensor chip in a High-Energy Particle Detector space module

Thermo-mechanical design for ALPIDE pixel sensor chip in a high-energy particle detector space module

Investigation and Optimization of a Cooling System Prototype for a Module of the Silicon Tracking System for the BM@N Experiment

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