UV Light Shower Simulator for Fluorescence and Cerenkov Radiation Studies

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dc.creatorGorodetzky, P.
dc.creatorDolbeau, J.
dc.creatorPatzak, T.
dc.creatorWaisbard, J.
dc.creatorBoutonnet, C.
dc.date2005-07-18
dc.date.accessioned2026-07-07T08:32:10Z
dc.date.available2026-07-07T08:32:10Z
dc.descriptionAll experiments observing showers light use telescopes equipped with pixellised photodetectors. Monte-Carlo (MC) simulations of the apparatus operation in various situations (background light, shower energy, proximity of tracks...) are mandatory, but never enter into detector details like pulse shape, dead-time, or charge space effects which are finally responsible for the data quality. An apparatus where each pixel receives light from individual 370 nm UV LEDs through silica fibers is being built. The LEDs receive voltage through DACs, which get their input (which pixel, at what time, which amplitude) from a shower plus noise generator code. The typical time constant of a shower being one $/mu$s (300 m for light), the pulses are one $/mu$s wide. This is rather long compared to the intrinsic time constant (around 10 ns) of the light detectors, hence, these see "constant light" changing every $/mu$s. This is where important loading effects which are not included in MC code can be observed. The fibers illuminate the pixels through a diffuser, and each fiber illuminates only one pixel. The number of equipped pixels is such that it englobes a full shower (much less than the full focal surface). Finally, this equipment can be used also to calibrate the pixels.
dc.identifierhttps://arxiv.org/abs/physics/0507138
dc.identifierhttp://arxiv.org/abs/physics/0507138
dc.identifierDans Proceedings of the 29th International Cosmic Ray Conference. - ICRC 2005 29th International Cosmic Ray Conference, Pune : Inde (2005)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138716
dc.subjectInstrumentation and Detectors
dc.subjectAstrophysics
dc.titleUV Light Shower Simulator for Fluorescence and Cerenkov Radiation Studies
dc.typetext

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