/ Accelerators


The temperature stability of 0.005°C for the concrete floor in the CERN Transfer Tunnel #1 hosting the Precision Laser Inclinometer


Azaryan, N. (Dubna, JINR) ; Budagov, J. (Dubna, JINR) ; Lyablin, M. (Dubna, JINR) ; Pluzhnikov, A. (Dubna, JINR) ; Gayde, J.Ch. (CERN) ; Di Girolamo, B. (CERN) ; Mergelkuhl, D. (CERN)

Published in: Phys.Part.Nucl.Lett.
Year: 2017
Vol.: 14    Num./Issue: 6
Page No: 913-919
Pages: 7
Year: 2017-11-25 published

Abstract: To reach a sensitivity level of ~10$^{–9}$ rad for the Precision Laser Inclinometer (PLI) for the registration of the Earth surface angular oscillation in the low frequency band of [10$^{–6}$ Hz, 1 Hz] the temperature stability of the CERN Transfer Tunnel #1 has been investigated. The daily temperature variation was 0.082°C for the air and 0.005°C for the concrete floor. The last result opened the possibility to observe the Earth surface inclination caused by Moon and Sun if the PLI is thermally stabilized by the massive monolithic concrete floor of the tunnel.


Note: *Brief entry*

Total numbers of views: 31
Numbers of unique views: 19
DOI: 10.1134/S1547477117060206
 Record created 2018-01-09, last modified 2018-01-09



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