Refractive index of carbon tetrafluoride (CF4) in the 300-140 nm wavelength range

Abjean, R.; Bideau-Méhu, A.; Guern, Y.

doi:10.1016/0168-9002(90)90178-9

Cited by 24 publications

(11 citation statements)

References 3 publications

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“…The refractive index of the CF 4 radiator as a function of the photon wavelength was obtained from the parametrization used in [7]. The values of the refractive index and the measured mirror reflectivity were identical to those given in [1].…”

Section: Monte Carlo Simulationmentioning

confidence: 99%

“…The I 2 C signals were fanned out to the front-end boards 6 National Instruments. 7 Philips P82B715. The timing diagram for the pipelined electronic readout and data acquisition system.…”

Section: Readout Electronicsmentioning

confidence: 99%

“…Throughout data taking, gas pressure and temperature, water vapour and oxygen concentrations were monitored. These were used for correcting the CF 4 refractive index, which has been parameterised as a function of wavelength at STP [7]. Data were collected with CF 4 at a pressure of 700 mbar.…”

Section: Experimental Setup For Beam Testsmentioning

confidence: 99%

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Performance of a cluster of multi-anode photomultipliers equipped with lenses for use in a prototype RICH detector

Albrecht

Baker

Barber

et al. 2002

Nuclear Instruments and Methods in Physics Research Section A:

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A cluster of Multi-anode Photomultiplier Tubes (MaPMTs) equipped with focusing lenses in front of the tubes was tested in a prototype Ring ImagingČerenkov detector in a charged particle beam. The readout electronics were capable of capturing the data at 40 MHz. The effects due to charged particles and magnetic field on the MaPMT performance were also studied. The results are used to evaluate the MaPMT as a possible photodetector for the LHCb RICH detectors.

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Section: Monte Carlo Simulationmentioning

confidence: 99%

“…The I 2 C signals were fanned out to the front-end boards 6 National Instruments. 7 Philips P82B715. The timing diagram for the pipelined electronic readout and data acquisition system.…”

Section: Readout Electronicsmentioning

confidence: 99%

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Performance of a cluster of multi-anode photomultipliers equipped with lenses for use in a prototype RICH detector

Albrecht

Baker

Barber

et al. 2002

Nuclear Instruments and Methods in Physics Research Section A:

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“…The RICH 2 Cherenkov radiator was changed to CF 4 with about 5% admixture of CO 2 . The refractive indices of CF 4 and CO 2 are given [20] as ðn À 1Þ CF 4 ¼ 0:1249 Â 10 À 6 61:8 À 2 À λ À 2 ðn À 1Þ CO 2 ¼ 0:0687 Â 10 À 6 80:1 À 2 Àλ Cherenkov angle and hence also the Cherenkov photon yield are similar for CF 4 and for CO 2 . Furthermore the chromatic dispersion, which determines the irreducible angular resolution, is similar.…”

Section: Quenching Of Cf 4 Scintillation Using Radiationless Transitionsmentioning

confidence: 98%

Quenching the scintillation in CF4 Cherenkov gas radiator

Blake¹,

D’Ambrosio²,

Easo³

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

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a b s t r a c t CF 4 is used as a Cherenkov gas radiator in one of the Ring Imaging Cherenkov detectors at the LHCb experiment at the CERN Large Hadron Collider. CF 4 is well known to have a high scintillation photon yield in the near and far VUV, UV and in the visible wavelength range. A large flux of scintillation photons in our photon detection acceptance between 200 and 800 nm could compromise the particle identification efficiency. We will show that this scintillation photon emission system can be effectively quenched, consistent with radiationless transitions, with no significant impact on the photons resulting from Cherenkov radiation.

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“…Surface area is in the range of 300 to 400 m 2 /g with a pore volume of Refractive index as function of the wavelength. Noble gases are given in (a) [3], the first n-perfluorocarbons in (b) [4] and some hydrocarbons in (c) [5]. The data points are scaled to 0 C and 1013 hPa.…”

Section: Watermentioning

confidence: 99%

Fluid systems for RICH detectors

Ullaland

2005

Nuclear Instruments and Methods in Physics Research Section A:

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Refractive index of carbon tetrafluoride (CF4) in the 300-140 nm wavelength range

Cited by 24 publications

References 3 publications

Performance of a cluster of multi-anode photomultipliers equipped with lenses for use in a prototype RICH detector

Performance of a cluster of multi-anode photomultipliers equipped with lenses for use in a prototype RICH detector

Quenching the scintillation in CF4 Cherenkov gas radiator

Fluid systems for RICH detectors

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