A Gas System for a Large Multi-Cells Detector

Benussi, L.; Bertani, M.; Bianco, S.; Fabbri, F.; Gianotti, P.; Giardoni, M.; Lucherini, V.; Pace, E.; Passamonti, L.; Pompili, F.; Quaiser, N.; Tomassini, S.

doi:10.1142/9789812776464_0044

Cited by 2 publications

(1 citation statement)

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“…Each line samples the air in eleven points: outside the He Chamber, around the gas racks and also in the region of the straw tubes array [5]. The air samples are analyzed by a infrared detector (POLYTRON IR-Ex) that measures the hydrocarbon leakages as L.E.L percentage: two hydrocarbon threshold levels distinguish the pre-alarm and alarm conditions and some relays are controlled as consequence.…”

Section: The General Safety System In Finudamentioning

confidence: 99%

Gas and safety control systems for drift and He chambers in FINUDA

Cattarello

Calvo

Gallian

et al. 2005

14th IEEE-NPSS Real Time Conference, 2005.

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In modern high energy and nuclear physics experiments, the complexity of gas detectors and their operation in areas not accessible during the data taking periods require dedicated gas and safety systems running automatically and controlled by PC.In the FINUDA experiment, to control the gas systems of the drift and He chambers and to monitor the relevant parameters, as helium atmosphere purity and gas mixture composition, affecting the experimental performances, three programs were written in National Instruments (NI) LabVIEW and Datalogging and Supervisory Control environment.Two safety systems work continuously to check the hydrocarbon leakages, inside and outside the He Chamber: prealarm and alarm signals feed a NI Field Point, where a real time program sends, via Ethernet, the FINUDA safety status to all detectors.

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Section: The General Safety System In Finudamentioning

confidence: 99%