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Compression and thermal conductivity tests of Cryogel® Z for use in the ultra-transparent cryostats of FCC detector solenoids

Ilardi, V; Busch, L N; Dudarev, A; Koettig, T; de Sousa, P Borges; Liberadzka, J; Silva, H; Kate, H H J ten

Abstract:
The Future Circular Collider (FCC) study includes the design of the detector magnets for the FCC-ee+ (electron-positron) collider, requiring a 2 T solenoid for particle spectrometry, and for the FCC-hh (proton-proton) collider, with a 4 T detector solenoid. For both solenoids and their cryostats, CERN is developing an innovative and challenging design in which the solenoids are positioned inside the calorimeters, directly surrounding the inner tracker. For this purpose, the cryostats must be optimized to have maximum radiation transparency. They are structured as a sandwich of thinnest possible metallic shells for achieving vacuum tightness, supported by layers of low density and highly radiation transparent insulation material, still providing sufficient mechanical resistance and low thermal conductivity. In this respect, thermal and mechanical analysis of innovative insulation materials are currently being carried out. The first material of interest, Cryogel® Z, is shaped as a flexible composite blanket, which combines silica aerogel with reinforcing fibers and a density of 160 kg/m3. It allows a 4 m bore, 6 m long FCC-ee+ detector solenoid cryostat with a total thickness of 250 mm. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000127805
Veröffentlicht am 16.12.2020
Originalveröffentlichung
DOI: 10.1088/1757-899X/756/1/012005
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Thermische Verfahrenstechnik (TVT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1757-899X
KITopen-ID: 1000127805
Erschienen in IOP conference series / Materials science and engineering
Verlag IOP Publishing
Band 756
Heft 1
Seiten Art. Nr.: 012005
Bemerkung zur Veröffentlichung 2019 International Cryogenic Materials Conference, ICMC 2019; Connecticut Convention CenterHartford; United States; 21 July 2019 through 25 July 2019
Vorab online veröffentlicht am 30.06.2020
Nachgewiesen in Scopus
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