1. Radiation hard, micro-engineering solutions for thermal management in high energy physics and space applications
Diego Alvarez Feito, Julien Bonnaud, Enrico Chesta, Alessandro Mapelli
Michel Despont
Grégoire Bourban, Volker Gass

2. Mar Capeans

3. Mar Capeans

4. Irradiation Facilities
Federico RAVOTTI
The team operates and maintains:
Proton Irradiation Facility PS-EA
Gamma Irradiation Facility SPS-NA
Support users in planning / executing irradiations
dosimetry meas., samples handling, transport, etc.
Organize irradiations in facilities outside CERN
Develop Radiation Monitoring devices for HEP
Involved in AIDA-2020 project & FCC Study
GIF++
Beam momentum: 24 GeV/c
Beam spot: 12×12 mm2 (FWHM)
Proton flux: ~1016 p/cm2 in 5 days
Task 15.2
IRRAD infrastructure/systems upgrade
GIF++ gas system upgrade
Transnational access program p+
IRRAD Zone 2 p+
IRRAD Zone 1
Special Technol. WP11
Development of Radiation Sensors for ultra-high dose levels
IRRAD
RADMON sensor for HEP Experiments
(>250 units delivered)

5. DT Composite laboratory
Area of 145 m² dedicated to composite activities
Semi clean room for composite lay-up
New autoclave (Tmax= 250°C, Pmax= 10bars)
VRTM process (Vacuum Resin Transfer Molding)
Characterization room (chemical dissolution and microscopic observation)
Involved in many projects (CMS, CLIC, ATLAS, LHCb …)
Tracker inner prototype for CLIC experiment
UT Box prototype
for LHCb experiment
New autoclave 2.5m x 1m
VRTM process
Chemical dissolution bench
Semi-clean Room

6. QART Lab: Quality Assurance and Reliability Testing Laboratory
Alan HONMA, Florentina MANOLESCU, Ian McGILL, Julien BONNAUD

7. Thermal Management in HEP and Space Applications
Dissipate heat generated by electronics
Extend service-life of components
Vacuum + Radiation
Silicon embedded microchannel cooling (e.g. NA62 GTK)
Cooling
Plant
Connection to main cooling circuit is challenging
In 2014, we pioneered the use of silicon microchannels for the

8. Project Objective
Miniaturised closed loop device operated in stand-alone mode
Eliminate connectors
Integrated Loop Heat Pipe in cooling plate
The full cooling circuit would be integrated in a silicon device the size of which is similar to that of the component to be cooled (i.e.“the cooling plant would be integrated in the silicon plate”).
Advantages:
Absence of fragile interconnections
Absence of long distribution lines/cooling plant (stand-alone option)
Minimal maintenance
Cost-effective and easy to replace

9. Miniaturising Loop Heat Pipes
Satellite thermal control loop heat pipe (
Fujitsu Ultra-thin heat pipe (
To be commercialised in 2017
Potential applications:
Detector cooling in fixed target HEP experiments.
Cooling in silicon tracking detectors (in stand alone mode or coupled with a secondary cooling line – without exchange of cooling fluid).
Cooling of electronic components or physics detectors embarked in space missions. (In space, it would open the door to cooling at the component level rather than the system level approach currently followed ).
Cooling applications in high performance computing and/or electronic devices (high power densities to be dissipated in confined spaces).

10. Joint PhD Programme
The various areas of expertise and the facilities required for the success of the project would be covered by the different partners.
EP-DT to make available its manufacturing and testing facilities and to provide technical supervision and expertise.
This would be the pilot project for the new collaboration agreement with SSC (to be ratified in June 2016).
Potential benefits for CERN:
Improvement and widen the potential use of an existing technology (i.e. embedded microchannel cooling ) for detector cooling in HEP.
Collaboration with leading institutions in the aerospace field, which share common problems with CERN in the area of heat management.
Visibility (particularly if the solution get adopted by ESA for a future space mission).

11. Research Plan
Familiarisation with the current technologies available in HEP and space applications and selection of the most promising technique to meet the requirements of both fields.
Design of a test vehicle to validate the approach and address potential commercial partners.
Manufacturing, characterisation and validation of the test vehicle.
Production of full-size demonstrators suitable for a specific HEP experiment at CERN and for a future space mission.