Fluid systems for RICH detectors

Ullaland, O.

doi:10.1016/j.nima.2005.08.033

Cited by 9 publications

(5 citation statements)

References 12 publications

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“…Chromatic dispersion affects most the near-UV generated photons, reducing the single-photon Cherenkov angle resolution. The present gases used in the LHCb RICH system, C 4 F 10 and CF 4 , feature low but not negligible chromatic dispersion [4]. Further improvement through use of a different gas seems difficult.…”

Section: The Role Of System Uncertainties On Pattern Recognition and ...mentioning

confidence: 96%

The future of RICH detectors through the light of the LHCb RICH

D’Ambrosio

2017

Nuclear Instruments and Methods in Physics Research Section A:

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The limitations in performance of the present RICH system in the LHCb experiment are given by the natural chromatic dispersion of the gaseous Cherenkov radiator, the aberrations of the optical system and the pixel size of the photon detectors. Moreover, the overall PID performance can be affected by high detector occupancy as the pattern recognition becomes more difficult with high particle multiplicities. This paper shows a way to improve performance by systematically addressing each of the previously mentioned limitations. These ideas are applied in the present and future upgrade phases of the LHCb experiment. Although applied to specific circumstances, they are used as a paradigm on what is achievable in the development and realisation of high precision RICH detectors.

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Section: The Role Of System Uncertainties On Pattern Recognition and ...mentioning

confidence: 96%

The future of RICH detectors through the light of the LHCb RICH

D’Ambrosio

2017

Nuclear Instruments and Methods in Physics Research Section A:

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“…For C 5 F 12 , we used data input from J. Seguinot's liquid data and converted it to a gas phase [85]. For all other gases, we used Ullaland's parameterisation [86]. Fig.…”

Section: Number Of Photoelectrons Per Ringmentioning

confidence: 99%

“…Figure 22: (a) Refraction index for the gases considered[85,86]. (b) Reflectivity of various mirror coatings[87]; we used Cr/Al/MgF 2 coating in the calculation.…”

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confidence: 99%