The Use of a 90 Metre Thermosiphon Cooling Plant and Associated Custom Ultrasonic Instrumentation in the Cooling of the ATLAS Inner Silicon Tracker

Hallewell, Greg; Battistin, Michele; Berry, Stephane; Bonneau, Pierre; Bortolin, Claudio; Crespo-Lopez, Olivier; Deterre, Cecile; Doubek, Martin; Favre, Gilles; Katunin, Sergey; Lombard, Didier; Madsen, Alexander; Nagai, Koichi; Pearson, Benjamin; Robinson, David; Rossi, Cecilia; Rozanov, Alexandre; Stanecka, Ewa; Vacek, Vaclav; Young, Joel; Zwalinski, Lukasz

doi:10.18429/JACoW-ICALEPCS2017-THPHA193

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RIS citation export for THPHA193: The Use of a 90 Metre Thermosiphon Cooling Plant and Associated Custom Ultrasonic Instrumentation in the Cooling of the ATLAS Inner Silicon Tracker

TY - CONF
AU - Hallewell, G.D.
AU - Battistin, M.
AU - Berry, S.
AU - Bonneau, P.
AU - Bortolin, C.
AU - Crespo-Lopez, O.
AU - Deterre, C.
AU - Doubek, M.
AU - Favre, G.
AU - Katunin, S.
AU - Lombard, D.
AU - Madsen, A.
AU - Nagai, K.
AU - Pearson, B.L.
AU - Robinson, D.
AU - Rossi, C.
AU - Rozanov, A.
AU - Stanecka, E.
AU - Vacek, V.
AU - Young, J.
AU - Zwalinski, L.
ED - Schaa, Volker RW
ED - Costa, Isidre
ED - FernÃ¡ndez, David
ED - Matilla, Ãscar
TI - The Use of a 90 Metre Thermosiphon Cooling Plant and Associated Custom Ultrasonic Instrumentation in the Cooling of the ATLAS Inner Silicon Tracker
J2 - Proc. of ICALEPCS2017, Barcelona, Spain, 8-13 October 2017
C1 - Barcelona, Spain
T2 - International Conference on Accelerator and Large Experimental Control Systems
T3 - 16
LA - english
AB - A new 60kW thermosiphon fluorocarbon cooling plant has been commissioned to cool the silicon tracker of the ATLAS experiment at the CERN LHC. The thermosiphon operates over a height of 90 metres and is integrated into the CERN UNICOS system and the ATLAS detector control system (DCS). The cooling system uses custom ultrasonic instrumentaton to measure very high coolant vapour flow (up to 1.2 kg/second), to analyse binary gas mixtures and detect leaks. In these instruments ultrasound pulses are transmitted in opposite directions in flowing gas streams. Pulse transit time measurements are used to calculate the flow rate and the sound velocity, which - at a given temperature and pressure - is a function of the molar concentration of the two gases. Gas composition is computed from comparisons of real-time sound velocity measurements with a database of predictions, using algorithms running in the Siemens SIMATIC WinCC SCADA environment. A highly-distributed network of five instruments is currently integrated into the ATLAS DCS. Details of the thermosiphon, its recent operation and the performance of the key ultrasonic instrumentation will be presented.
PB - JACoW
CP - Geneva, Switzerland
SP - 1890
EP - 1895
KW - ion
KW - detector
KW - controls
KW - instrumentation
KW - MMI
DA - 2018/01
PY - 2018
SN - 978-3-95450-193-9
DO - 10.18429/JACoW-ICALEPCS2017-THPHA193
UR - http://jacow.org/icalepcs2017/papers/thpha193.pdf
ER -