Microchannel cooling for the LHCb VELO Upgrade I

The LHCb VELO Upgrade I, currently being installed for the 2022 start of LHC Run 3, uses silicon microchannel coolers with internally circulating bi-phase \cotwo for thermal control of hybrid pixel modules operating in vacuum. This is the largest scale application of this technology to date. Production of the microchannel coolers was completed in July 2019 and the assembly into cooling structures was completed in September 2021. This paper describes the R\&D path supporting the microchannel production and assembly and the motivation for the design choices. The microchannel coolers have excellent thermal peformance, low and uniform mass, no thermal expansion mismatch with the ASICs and are radiation hard. The fluidic and thermal performance is presented.Comment: 31 pages, 27 figure

LES OEUVRES ET LES HOMMES.

Transcript of LES OEUVRES ET LES HOMMES by Victor Fournel, appearing in LE CORRESPONDANT, 10 mars 1875, pp. 1100-1102

Le vieux Paris : fètes, jeux, et spectacles /

Includes bibliographical references.Mode of access: Internet

Les cris de Paris : types et physionomies d'autrefois /

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Maman Capitaine ; [Les tribulations d'un critique herbivore] / Victor Fournel

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