C4F10

C4F10, Perfluoro-n-butane, is one of the two Cherenkov radiators to be used in the RICH1 detector at the LHCb experiment. Its refractive index n = 1.0014 in gas form makes it suitable for charged particles identification in the intermediate momentum range 10-60 GeV/c.

IUPAC name 1,1,1,2,2,3,3,4,4,4-decafluorobutane
alternate names butane, decafluoro-; decafluorobutane; perfluorobutane; sonazoid
refractive index n @ λ=400nm 1.0014 O. Ullaland, Fluid systems for RICH detectors, Nucl. Instrum. Meth. A 553 (2005) 107
n parametrization @ 0C and 101325 Pa (n-1) ⨉ 106=0.25324/(73.7-2-(λ/nm)-2) O. Ullaland, Fluid systems for RICH detectors, Nucl. Instrum. Meth. A 553 (2005) 107
radiator length 95 cm LHCb collaboration, The LHCb Detector at the LHC, Journal of Instrumentation, Vol. 3, No. 08. (2008), pp. S08005-S08005
photon yield for β~1 charged particles ~ 30 LHCb collaboration, The LHCb Detector at the LHC, Journal of Instrumentation, Vol. 3, No. 08. (2008), pp. S08005-S08005
momentum range 10-60 GeV/c
gas price (2000) 930 CHF / m3 M. Bosteels et al., LHCb RICH gas system proposal, LHCb-2000-079
melting point (1 bara) -128.2 C M. Bosteels et al., LHCb RICH gas system proposal, LHCb-2000-079
boiling point (1 bara) -1.9 C M. Bosteels et al., LHCb RICH gas system proposal, LHCb-2000-079

-- DvD - 06 Apr 2007

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Topic revision: r6 - 2009-06-17 - RuggeroTurra
 
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