An innovative polyimide microchannels cooling system for the pixel sensor of the upgraded ALICE inner tracker

Author

Fiorenza, G. ; Manzari, V. ; Pastore, C. ; Sgura, I. ; Torresi, M. ; Gargiulo, Claudio

Author_Institution

Ist. Naz. di Fis. Nucleare sez. di Bari, Bari, Italy

fYear

2013

fDate

13-14 June 2013

Firstpage

81

Lastpage

85

Abstract

The ALICE Inner Tracking System (ITS) is the key detector for the study of heavy flavour production at LHC. In order to enhance the ALICE physics capabilities and the tracking performance, an upgrade has been planned for replacing the existing ITS in its entirety with seven new layers of monolithic silicon pixel detectors. A novel light cooling system for the ITS´s innermost layer has been developed and fabricated. It consists of polyimide microchannels able to remove the power dissipated by the active electronics through forced convection of water coolant. The development, the construction, the mechanical-thermal characterization and the integration of this cooling system will be presented.

Keywords

coolants; cooling; elemental semiconductors; forced convection; image sensors; microsensors; polymers; silicon; ALICE inner tracking system; ITS; LHC; Large Hadron Collider; Si; a large ion collider experiment; forced convection; heavy flavour production; light cooling system; mechanical-thermal characterization; monolithic silicon pixel detector; pixel sensor; polyimide microchannels cooling system; power dissipation; water coolant; Coolants; Detectors; Heat transfer; Heating; Microchannel; Polyimides; cooling; microchannels; pixel detector; polyimide;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Sensors and Interfaces (IWASI), 2013 5th IEEE International Workshop on

Conference_Location

Bari

Print_ISBN

978-1-4799-0039-8

Type

conf

DOI

10.1109/IWASI.2013.6576065

Filename

6576065